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MultideckTechnical Handbook

Structural Steel Products UK & Ireland

2 MultideckStructural Steel Products

3 Multideck Structural Steel Products


Multideck 50

Product Data 12 Load / Span Tables 14 Fire Resistance 21 Fire Resistance Load / Span Tables 22 Sound Attenuation 31

Construction Details

Multideck 50-V3 84 Multideck 60-V2 and 80-V2 90 Multideck 96 Multideck 146 97

Accessories & Service

Accessories 127 Suspension Systems 128 Uni-Wedge Universal Clamp 130 Order Forms 134

Multideck 60

Product Data 34 Load / Span Tables 37 Fire Reistance 43 Fire Reistance Load / Span Tables 44 Sound Attenuation 51

Sitework

Multideck Weights 101 Pack ID 102 Primary Fixing 104 Shear Studs 106 Temporary Supports 110

References 133

Contents


Multideck 80

Product Data 54 Load / Span Tables 57 Fire Resistance 62 Fire Resistance Load / Span Tables 63 Sound Attenuation 66

Concrete

Estimating Concrete Volumes 115 Reinforcement 116 Dramix® Steel Fibres 118

Multideck 146

Product Data 70 Reinforcement 72 Load / Span Tables 73 Fire Resistance 77 Fire Resistance Load / Span Tables 78 Sound Attenuation 82

Estimating & Ordering 124


Kingspan Structural Products The Company

Kingspan Structural Products is one of Britain’s leading designers and manufacturers of structural steel components for the construction industry. Based in Sherburn, North Yorkshire Kingspan operates one of the largest and most advanced production complexes in Europe, manufacturing over 50,000 tonnes of steel products each year. In five decades of trading the company has become established as a market leader renowned for quality products and innovative design.

Kingspan Structural ProductsMultideck Floor SystemHigh performance, profiled, galvanised steel floor decking for use in the construction of composite floor slabs. The profile may also be used as a permanent shuttering.

Multibeam Purlin SystemA range of purlin sections designed to suit all types of modern roof construction with bay sizes up to 15 metres.

Multibeam Cladding Rail SystemA range of cladding rails designed specifically to support metal clad walls in horizontal or vertical applications on all kinds of main supporting structures.

Multichannel Steel SectionsA range of pre-engineered, structural channel sections designed to complement the Multibeam purlin and rail systems. Multichannel is an ideal solution for horizontally laid cladding and is particularly suitable for mezzanine floors, volumetric units. Multichannel can be an effective substitute for conventional hot rolled sections and timber. Unique pre-engineered end connections reduce components and simplify detailing.

CommitmentIt is our commitment and professional approach that has enabled the company to establish its outstanding reputation for service, quality and to maintain its lead in a highly competitive field.

Further information on these products is available in technical handbook, reference P128.

Kingspan Structural Products manufacturing facility

Quality AssuranceQuality assurance is a fundamental feature of the Kingspan Structural Products operating policy. From initial material testing for yield strength and thickness through to delivery on site all aspects of quality and service are monitored ensuring compliance with the requirements of BS EN ISO 9001:2008 (Quality management systems. Requirements).

CE MarkingKingspan Structural Products have been accredited at the highest execution class EXC4, allowing Multideck to be used on all types of construction. The accreditation was carried out by the Steel Construction Certificate Scheme (SCCS).

LPCBKingspan Multideck has been LPCB certified to 279 (Quality Systems), 279 EMS (Environmental Systems) and 279-HS (Health & Safety Certification).

Gold StandardKingspan Structural Products have been awarded the Gold Standard under the Steel Construction Sustainability Charter (SCSC). The Gold Standard was awarded after a successful audit under SCSC rules. This included demonstrating the implementation of a range of management systems, including OHSAS 18001, BS EN ISO 14001 and BS EN ISO 9001.


SustainabilityReuseSteel does not lose its strength or stiffness over time so remains a viable product for reuse. Assembly joints between components can be easily dismantled at any time to facilitate reuse. Sections can be recut to length and reholed to suit a revised use.

RecyclingSteel is one of the world’s most recycled materials with over 40% of ‘new’ steel made from recycled steel. Kingspan’s suppliers encourage, promote and assist in the return of steel for recycling.

Certification Kingspan’s products are manufactured from the highest quality materials to rigorous quality control standards, approved to BS EN ISO 9001:2008 (Quality management systems. Requirements). Kingspan manufacturing plants are BS EN ISO 14001: 2004 (Environmental management systems. Requirements with guidance for use) and BS OHSAS 18001: 2007 (Occupational health and safety management systems. Requirements) accredited. This simple coherent business management system enables the organisation to successfully achieve its purpose and mission to ensure that quality; safety and the environment are considered in all aspects of the business process. Further information on these certifications can be found on our website www.kingspanstructural.com.

Customer ServiceExperienceFrom concept and design to manufacture and site installation, Kingspan Structural Products has an unmatched degree of experience with over four decades of experience and technical expertise in all aspects of steel construction. Kingspan remain focused on servicing the ever changing need of the construction industry.

Technical ExcellenceAt Kingspan Structural Products we are committed to advancing technology within the construction industry. Working in conjunction with the world’s leading experts, continually refining and testing new and existing products, while enhancing our reputation for technical excellence and the establishment of higher standards in the industry.

Specialist TeamKingspan offer a comprehensive advisory service to customers, specifiers and contractors on all aspects of specification and use of our product range.

Our specialist team of design engineers is available to answer technical queries regarding the use of our products in any application. Our internal sales staff and customer services department provide a friendly and efficient service from initial enquiry through to site delivery and after sales.

Area Sales ManagersPersonal contact is important. Our specially trained regionally based Sales Managers are on hand to discuss your project personally and advise on the application and use of Kingspan structural products.

Our Area Sales Managers are also trained to install and update our time saving Toolkit design software. Toolkit is available to all specifiers and users of our product range, as part of our comprehensive service package.

Building Information Modelling (BIM)A comprehensive range of Kingspan Structural Products BIM files are available on BIMStore. You can download BIM files for our Purlins, Rails, Multideck and Multichannel products. Visit BIMStore to access the details you need.


Kingspan Multideck Profiled Steel Floordeck

Multideck 50 – 50mm ‘Dovetail’ rib profile, maximising deck

bond to concrete– Minimum slab depth of 100mm– Unpropped construction stage spans

up to 4.4m– Gauge range 0.85mm through 1.2mm

for economic solutions– Shear keys on flange and webs of ribs

gives class leading load capacity– 1 hour fire performance with 100mm

slab depth– Fire performance up to 4 hours– Acoustic robust solution

Multideck 60 – 60mm trapezoidal profile giving

maximum strength– Unpropped construction stage spans

up to 4.7m– Gauge range 0.9mm through 1.2mm

for economic solutions– Efficient concrete cross section using

up to 20% less concrete than other decks– 1 hour fire performance with 130mm

slab depth– Fire performance up to 4 hours– 1.0m cover width for rapid lay of

deck on site– Acoustic robust solution– Optimised for composite beam design


Multideck 80– 80mm trapezoidal profile giving

maximum strength– Unpropped construction stage spans

up to 5.4m– Gauge range 1.0mm through 1.2mm for

economic solutions– Efficient concrete cross section maximising

performance– 1 hour fire performance with 140mm


Multideck 146 – 146mm trapezoidal profile giving

maximum strength– Spans up to 6.0m unpropped– Gauge range 1.2mm and 1.5mm

foreconomic solutions– Efficient concrete cross section using up to

31% less concrete than other decks– 1 hour fire performance with 215mm


10 Multideck 50Structural Steel Products

Multideck 50

Contents

Product Data 12 Load / Span Tables 14 Fire Resistance Load / Span Tables 21

Sound Attenuation 31

11 Multideck 50 Structural Steel Products

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Introduction

Multideck 50-V3 is a high performance, profiled, galvanised steel floor decking for use in the construction of composite floor slabs. The profile may also be used as a permanent shuttering.

Multideck 50-V3 Floor Decking System As part of the Kingspan ethos of continuous product and service development, the Multideck 50 system has recently been subject to a number of design improvements that have significantly improved the capability of the product.

As a consequence of the design improvements and an extension of the range of gauges available, the new Multideck 50-V3 provides enhanced performance criteria and the potential to deliver both design and economic benefits compared to the previous V2 system.

Following extensive testing, which investigated the product performance at both construction and composite stages, new performance paradigms and load tables have been produced to allow designers to take advantage of the improvements.

Multideck 50-V3 has the following attributes: – 50mm ‘Dovetail’ rib profile, maximising deck bond

to concrete; – Minimum slab depth of 100mm; – Unpropped construction stage spans up to 4.4m; – Gauge range available up to 1.20mm; – Shear keys on flange and webs of ribs give class-leading

load capacity; – 1 hour fire performance with 100mm slab depth; – Fire performance up to 4 hours; – Acoustic robust solution.

Key benefits to using the Multideck Floor System include:– The larger range of Multideck gauge thicknesses allow closer

matching of design requirements and deck performance, resulting in greater design efficiency.

– Eliminating the need for temporary props, under most conditions, Multideck 50-V3 offers quick and efficient installation.

– A wide range of accessories also allows for easy installation of ceilings and services.

– Our Technical Services Department also provides an engineering and advisory service to specifiers and end users on the use of the Multideck range of composite decks.

– The Multideck Toolkit design software includes comprehensive composite floor design which allows the user to easily select the right Multideck solution. The design software is available for download from the website: www. kingspanstructural.com


Product Data

Material Specification – 450N/mm2 Steel Multideck 50-V3 is manufactured from one continuous steel strip and complies with BS EN 10143 and BS EN 10346. Multideck 50-V3 offers a guaranteed minimum yield strength of 450N/mm2 and a minimum total coating mass (including both sides) of 275g/m2.

Rake Cutting Pre-delivery cutting of sections is available. Please contact our Sales Department for details.

Reinforcement Mesh or bar reinforcement of the slab to control cracking in the concrete at all intermediate supports is required in BS 5950: Part 4: 1994. Steel reinforcement for crack control in the concrete or fire engineering purposes should be in accordance with British Standards: Hot Rolled Bars – BS 4449 and Mesh Reinforcement – BS 4483.

Profile and Dimensions (mm)

Concrete Volumes and Specification Load / span tables are based on Grade C25/30 concrete, having a design strength of 30N/mm2. Solutions using other concrete strengths are possible with the Multideck Toolkit design software. Density of normal weight concrete: 2400kg/m3 at wet stage. Density of lightweight concrete: 1900kg/m3 at wet stage.

Embossments The unique patented combination of embossments on each face of the ‘dovetail’ profile provides a mechanical connection to enhance the bond between the harden concrete and Multideck 50-V3.

References Engineers are advised to consult the Steel Construction Institute / The Metal Cladding and Roofing Manufacturers Association (SCI/MCRMA) Technical Paper 13 ‘Composite Slabs and Beams using Steel Decking: Best Practice for Design and Construction’.

600mm nominal

150mm

40mm

gauge 50mm

20mm

17mm 5mm

15mm

Gauge: 0.85mm, 0.90mm, 1.00mm, 1.10mm, 1.20mmMaximum length: 12m


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Section Properties per Metre Width

Normal Thickness (mm)

Self Weight Height to Neutral Axis Sagging

(mm)

Second Moment of Area

(cm4/m)

Steel Area (mm2/m)

Ultimate Moment Capacity (kNm/m)

(kg/m2) (kN/m2) Sagging Hogging0.85 11.42 0.112 16.10 56.58 1418 6.47 6.300.90 12.89 0.126 16.50 66.15 1605 7.72 7.221.00 14.36 0.141 16.60 75.90 1792 8.97 7.991.10 15.83 0.155 16.70 83.99 1979 10.17 8.821.20 17.29 0.170 16.70 92.16 2165 11.31 9.55

Volume and Weight of Composite Slabs on Multideck 50-V3

Slab Depth (mm)

Concrete Volume(m3/m2)

Weight (kN/m2)Normal Weight Concrete Lightweight Concrete

Wet Dry Wet Dry100 0.091 2.14 2.10 1.70 1.61110 0.101 2.38 2.33 1.88 1.78120 0.111 2.61 2.56 2.07 1.96125 0.116 2.73 2.67 2.16 2.05130 0.121 2.85 2.79 2.26 2.14140 0.131 3.08 3.02 2.44 2.31150 0.141 3.32 3.25 2.63 2.49160 0.151 3.56 3.48 2.81 2.67170 0.161 3.79 3.71 3.00 2.84200 0.191 4.50 4.40 3.56 3.37250 0.241 5.67 5.56 4.49 4.26

Notes:1. Important – concrete volumes do not take into account deflection.2. Excludes weight of steel decking and relates only to weight of concrete.3. Concrete volumes are based upon a calculated minimum value (nominal slab depth).

Account should be taken of deck and supporting structure deflections.


Load / Span Tables

Load / Span Tables When using load / span tables, please consider the following notes:

Definition of Span (construction stage) when using Kingspan Load / Span Tables

Support Widths greater than 100mm?The span capacities shown on the following pages can be increased by the difference between the actual support widths and 100mm. The deck span (m) used in the table is based on: (support c/c – support bearing) + the deck depth. All values are in metres.

ExampleSupport widths 140mm and 200mm. Span values can be increased by: (140 + 200)/2 – 100 = 70mm.

Multideck 50-V3 1.2mm double span deck. 150mm thick slab – normal weight concrete.

Construction stage span: 4.0N/m2 load column = 3780mm. With support widths of 140 and 200 the increased span capacity is 3780 + 70 = 3850mm.

1. The table shows the maximum span in metres of the Multideck product for the applied loads and slab depths shown. Values are shown for each gauge where the deck is single span or double span.

2. For confirmation of the maximum construction stage unpropped spans see page 111.

3. The span values are based on the use of a minimum 100mm bearing support. Where the bearing exceeds 100mm the span capacity can be increased. See ‘Definition of Span’ diagram.

4. Deck must lie flat on all support beams. Point only contact will adversely affect the design loading, reducing the capacity below that shown in the tables.

5. The self-weight of the slab has been taken into account in the table and should not be included in the applied loading.

6. All tabulated span capacities include applied construction stage load of 1.5kN/m2 for spans equal to or greater than 3.0m.

7. The composite slab should meet the requirements of BS 5950: Part 4: 1994 with regard to their composite behaviour under normal loading.

8. The concrete grade is a minimum of C25/30 with a minimum cube strength of 30N/mm2.

9. Minimum reinforcement mesh sizes shown meet or exceed 0.1% gross cross sectional area of the concrete at the supports. Minimum reinforcement should be increased where:a) The slab is propped during construction;b) It is required to control the size of cracking in the

concrete, i.e. where a brittle finish is applied to the slab;c) There are moving loads.

Mesh reinforcement should be placed near the upper edge of the concrete slab in a zone of 15mm to 40mm from the top of the surface. Concrete cover to reinforcement should be increased where slab exposure dictates.

Support c/c

100mm minimum

100mm minimum

10. Fire resistance performance of the composite concrete Multideck 50-V3 slab is as documented and tabulated on pages 21 to 30.

11. Total applied load referred to in the table is a working load derived from the sum of the loads supported by the composite slab (live load, finishes, ceilings, services, partitions). Loads shown are based on the ultimate capacity divided by 1.6. The slab self-weight has already been taken into account, do not include in applied loads.

12. Deflection under construction loading (wet concrete etc) has been limited to that stipulated in BS 5950: Part 4: 1994 as 30mm or the span divided by 130, whichever is smaller. At the composite stage the suggested maximum ratio of slab span to slab depth is 35 for NWC and 30 for LWC to control deflection.

13. For the propped during construction cases, the temporary supports should remain in place until the concrete has achieved 75% of its 28 day cube strength (often available after 7 days)

14. Where more than one prop is provided they should be equally spaced across the span of the Multideck system.

15. The sound attenuation performance of the composite concrete Multideck 50-V3 slab is as documented and tabulated on page 31.


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Normal Weight Concrete Unpropped (Steel – 450N/mm2)Gauge – 0.85mm

Span Type (support condition)

Slab Depth(mm) Min Mesh Size

Total Applied Load (kN/m2) SLS4.0 6.0 8.0 10.0 12.0 14.0

Span (m)100 A142 3.02 3.02 3.02 3.00 3.00 2.99110 A142 2.94 2.94 2.94 2.94 2.94 2.94120 A142 2.87 2.87 2.87 2.87 2.87 2.87130 A142 2.78 2.78 2.78 2.78 2.78 2.78140 A142 2.71 2.71 2.71 2.71 2.71 2.71150 A142 2.63 2.63 2.63 2.63 2.63 2.63160 A193 2.58 2.58 2.58 2.58 2.58 2.58175 A193 2.49 2.49 2.49 2.49 2.49 2.49200 A193 2.36 2.36 2.36 2.36 2.36 2.36250 A252 2.16 2.16 2.16 2.16 2.16 2.16100 A142 3.31 3.31 3.31 3.31 3.31 3.20110 A142 3.21 3.21 3.21 3.21 3.21 3.21120 A142 3.13 3.13 3.13 3.13 3.13 3.13130 A142 3.05 3.05 3.05 3.05 3.05 3.05140 A142 2.97 2.97 2.97 2.97 2.97 2.97150 A142 2.89 2.89 2.89 2.89 2.89 2.89160 A193 2.81 2.81 2.81 2.81 2.81 2.81175 A193 2.71 2.71 2.71 2.71 2.71 2.71200 A193 2.57 2.57 2.57 2.57 2.57 2.57250 A252 2.35 2.35 2.35 2.35 2.35 2.35

Gauge – 0.90mm





Notes: Total applied load referred to in the above tables is a working load based on combinations of live loads, finishes, ceilings, services and partitions (excluding slab self weight).Permanent Support For load / span conditions beyond the scope of these tables, the Multideck Toolkit design software should be used to check for a solution. This design software provides an accurate and detailed analysis and Kingspan encourages its use for all design checks.







Gauge – 1.10mm






Load / Span Tables


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Lightweight Concrete Unpropped (Steel – 450N/mm2)Gauge – 0.85mm





Gauge – 0.90mm






Load / Span Tables


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Gauge – 1.10mm













Load / Span Tables


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Fire Resistance

Fire Performance – Mesh

1. Multideck 50-V3 can be used with Dramix® Steel Fibre reinforcement as an alternative to conventional fire engineering using steel mesh (see fire resistance load / span tables on pages 22 through 30).

2. For more information on the use of Dramix® Steel Fibre Concrete, please refer to pages 118 through 121 of the Multideck Technical Handbook P364.

3. Dramix® Steel Fibre reinforcement can only be used with Multideck 50-V3 in gauges 0.9mm, 1.0mm and 1.2mm.

1. The fire resistance load / span tables for Multideck 50-V3 on the following pages are based upon fire test data from full scale tests performed at the Warrington Fire Research Centre UK, May 1998.

2. The published load / span tables on the following pages provide values for fire performance up to 2 hours. The Multideck Toolkit design software should be used for extended fire periods of up to 4 hours or where the composite slab is single span.

3. The composite slab is assumed to be continuous over one or more intermediate supports, i.e. minimum double span.

4. The fire resistance load / span tables are for continuous spans only with no propping. For propped and single span conditions use the Multideck Toolkit design software or contact our Technical Services Department.

5. Minimum laps should be 300mm for A142 mesh and 400mm for A193 and A252 mesh.

6. The mesh should be placed between 15mm and 40mm from the upper surface of the slab (this range caters for lap areas).

7. The tables are based upon Grade 30 concrete, reinforcement having a yield strength of 460N/mm2.

8. The fire resistance load / span tables must be read in conjunction with the standard load / span tables to verify the structural integrity of the composite slab.

9. The values in all load / span tables are relevant to unpropped construction.

10. The tables take into account the reduced partial factor of 0.8 as permitted in BS 5950: Part 8: 2003 for non-permanent imposed loads. The tables are presented in terms of total

specified imposed load (non-permanent and permanent). It is assumed that the permanent imposed loads for partitions, finishes, ceilings and services are equivalent to 1.7kN/m2 in all cases. The tables are therefore appropriate for office type applications. For other applications where the imposed loads are almost entirely permanent, the total load should be adjusted accordingly before reading from the tables, e.g:– 150mm normal weight concrete plantroom slab

and A142 mesh;– 7.5kN/m2 live load; – 1.2kN/m2 50mm screed finish

0.5kN/m2 ceilings and services;– 1 hour fire rating.

Multideck 50-V3 profileTotal applied load = 1.2 + 0.5 + 7.5/0.8 = 11.075kN/m2. From table overleaf, maximum span = 3.60m.11. The * denotes that the mesh provided, although satisfying

the fire resistance requirement, does not comply with the minimum anti-crack reinforcement requirement of BS 5950: Part 4: 1994.

Refer to standard load / span tables for minimum mesh requirements.

12. For load / span conditions beyond the scope of these tables, the Fire Engineering Method as detailed in the SCI Publication 056 should be adopted or use the Multideck Toolkit design software. Please contact our Technical Services Department for advice.

13. These tables apply to all gauges 0.85mm and above.

Fire Performance – Dramix® Steel Fibre


Normal Weight Concrete – Unpropped Construction

Slab Depth (mm)

Min Mesh Size

Fire Rating 1.0 hourTotal Applied Load (kN/m2)

4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0Span (m)

100 A142 3.50 3.50 3.50 3.50 3.43 3.30 3.17 3.07 2.96100 A193 3.50 3.50 3.50 3.50 3.50 3.43 3.36 3.25 3.14100 A252 3.50 3.50 3.50 3.50 3.50 3.50 3.50 3.42 3.33110 A142 3.85 3.85 3.85 3.75 3.57 3.44 3.31 3.21 3.10110 A193 3.85 3.85 3.85 3.85 3.79 3.65 3.51 3.40 3.29110 A252 3.85 3.85 3.85 3.85 3.85 3.79 3.73 3.61 3.49125 A142 4.38 4.33 4.11 3.93 3.77 3.64 3.50 3.39 3.28125 A193 4.38 4.38 4.37 4.18 4.01 3.87 3.72 3.61 3.49125 A252 4.38 4.38 4.38 4.37 4.26 4.11 3.95 3.83 3.70130 A142 4.55 4.39 4.18 3.99 3.83 3.70 3.56 3.45 3.34130 A193 4.55 4.55 4.44 4.25 4.07 3.93 3.78 3.67 3.55130 A252 4.55 4.55 4.55 4.50 4.32 4.17 4.02 3.90 3.77140 A142 4.73 4.48 4.27 4.08 3.92 3.79 3.65 3.54 3.43140 A193 4.90 4.77 4.54 4.34 4.17 4.03 3.88 3.76 3.64140 A252 4.90 4.90 4.82 4.61 4.43 4.28 4.12 4.00 3.87150 A142 4.80 4.55 4.34 4.16 4.00 3.86 3.72 3.61 3.50150 A193 5.10 4.84 4.62 4.42 4.25 4.11 3.96 3.84 3.72150 A252 5.25 5.14 4.90 4.69 4.51 4.36 4.20 4.08 3.95160 A142 4.86 4.62 4.41 4.23 4.07 3.94 3.80 3.69 3.58160 A193 5.17 4.91 4.69 4.50 4.32 4.18 4.03 3.92 3.80160 A252 5.49 5.21 4.98 4.77 4.59 4.44 4.28 4.15 4.03200 A142 5.07 4.85 4.65 4.47 4.32 4.19 4.05 3.94 3.83200 A193 5.38 5.14 4.93 4.75 4.58 4.44 4.30 4.18 4.06200 A252 5.71 5.45 5.23 5.03 4.86 4.71 4.56 4.44 4.31250 A142 5.27 5.06 4.88 4.72 4.56 4.43 4.30 4.20 4.09250 A193 5.58 5.36 5.17 4.99 4.83 4.70 4.56 4.45 4.33250 A252 5.92 5.68 5.47 5.29 5.12 4.98 4.83 4.71 4.58

Notes:These values are for unpropped spans only. For cases where the deck is propped please use the Multideck Toolkit design software.For load / span conditions beyond the scope of these tables, the Multideck Toolkit design software should be used to check for a solution. This software provides an accurate and detailed analysis and Kingspan encourages its use for all design checks.

Fire Resistance Load / Span Tables


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Slab Depth (mm)

Min Mesh Size


4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0Span (m)

100 A142 – – – – – – – – –100 A193 – – – – – – – – –100 A252 – – – – – – – – –110 A142 3.80 3.58 3.40 3.24 3.10 2.99 2.88 2.79 2.69110 A193 3.85 3.85 3.65 3.49 3.34 3.22 3.09 2.99 2.89110 A252 3.85 3.85 3.85 3.73 3.57 3.44 3.31 3.21 3.10125 A142 3.98 3.76 3.58 3.42 3.28 3.17 3.05 2.96 2.86125 A193 4.29 4.05 3.85 3.68 3.53 3.41 3.28 3.18 3.08125 A252 4.38 4.35 4.13 3.95 3.78 3.65 3.51 3.40 3.29130 A142 4.04 3.82 3.63 3.48 3.33 3.22 3.10 3.01 2.91130 A193 4.35 4.12 3.91 3.74 3.59 3.47 3.34 3.24 3.13130 A252 4.55 4.42 4.20 4.02 3.85 3.72 3.58 3.47 3.36140 A142 4.14 3.92 3.73 3.58 3.43 3.32 3.20 3.10 3.00140 A193 4.46 4.22 4.02 3.85 3.70 3.57 3.44 3.34 3.23140 A252 4.79 4.53 4.32 4.13 3.97 3.83 3.69 3.58 3.47150 A142 4.22 4.00 3.82 3.66 3.52 3.40 3.28 3.19 3.09150 A193 4.55 4.32 4.12 3.95 3.79 3.67 3.54 3.44 3.33150 A252 4.89 4.65 4.42 4.24 4.07 3.94 3.80 3.69 3.57160 A142 4.27 4.06 3.88 3.72 3.58 3.46 3.34 3.25 3.15160 A193 4.61 4.38 4.18 4.01 3.86 3.73 3.60 3.50 3.39160 A252 4.95 4.71 4.49 4.31 4.14 4.01 3.87 3.76 3.64200 A142 4.44 4.24 4.07 3.92 3.78 3.67 3.55 3.46 3.36200 A193 4.78 4.57 4.39 4.23 4.07 3.95 3.82 3.72 3.61200 A252 5.14 4.91 4.71 4.53 4.37 4.24 4.10 3.99 3.88250 A142 4.60 4.42 4.26 4.12 3.98 3.87 3.76 3.67 3.57250 A193 4.95 4.75 4.58 4.43 4.28 4.16 4.04 3.94 3.84250 A252 5.30 5.10 4.91 4.75 4.59 4.46 4.33 4.22 4.11




Slab Depth (mm)

Min Mesh Size


4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0Span (m)

100 A142 – – – – – – – – –100 A193 – – – – – – – – –100 A252 – – – – – – – – –110 A142 – – – – – – – – –110 A193 – – – – – – – – –110 A252 – – – – – – – – –125 A142 3.34 3.15 3.00 2.87 2.75 2.66 2.56 2.48 2.40125 A193 3.67 3.47 3.30 3.16 3.03 2.92 2.81 2.73 2.64125 A252 4.01 3.79 3.60 3.45 3.30 3.18 3.06 2.97 2.88130 A142 3.39 3.21 3.05 2.92 2.80 2.70 2.60 2.53 2.45130 A193 3.73 3.53 3.36 3.21 3.08 2.97 2.86 2.78 2.69130 A252 4.08 3.86 3.67 3.51 3.36 3.25 3.13 3.04 2.94140 A142 3.47 3.29 3.14 3.00 2.88 2.79 2.69 2.61 2.53140 A193 3.82 3.62 3.45 3.31 3.17 3.07 2.96 2.87 2.78140 A252 4.18 3.96 3.77 3.62 3.47 3.35 3.23 3.13 3.03150 A142 3.55 3.37 3.21 3.08 2.96 2.86 2.76 2.68 2.60150 A193 3.92 3.72 3.55 3.40 3.27 3.16 3.05 2.96 2.87150 A252 4.28 4.06 3.87 3.71 3.57 3.45 3.32 3.23 3.13160 A142 3.61 3.44 3.28 3.15 3.03 2.93 2.83 2.75 2.67160 A193 3.99 3.79 3.62 3.47 3.34 3.23 3.12 3.03 2.94160 A252 4.36 4.14 3.96 3.80 3.65 3.53 3.41 3.31 3.21200 A142 3.74 3.58 3.43 3.31 3.19 3.10 3.00 2.92 2.84200 A193 4.13 3.95 3.79 3.65 3.52 3.41 3.30 3.21 3.12200 A252 4.52 4.32 4.14 3.99 3.85 3.73 3.61 3.51 3.41250 A142 3.86 3.71 3.57 3.46 3.34 3.25 3.16 3.08 3.00250 A193 4.25 4.08 3.93 3.80 3.68 3.58 3.47 3.39 3.30250 A252 4.65 4.46 4.30 4.16 4.03 3.92 3.80 3.71 3.61




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Lightweight Concrete – Unpropped Construction

Slab Depth (mm)

Min Mesh Size


4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0Span (m)

100 A142 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00100 A193 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00100 A252 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00110 A142 3.15 3.15 3.15 3.15 3.15 3.15 3.15 3.13 3.11110 A193 3.15 3.15 3.15 3.15 3.15 3.15 3.15 3.15 3.15110 A252 3.15 3.15 3.15 3.15 3.15 3.15 3.15 3.15 3.15125 A142 3.45 3.45 3.45 3.45 3.45 3.45 3.45 3.35 3.25125 A193 3.45 3.45 3.45 3.45 3.45 3.45 3.45 3.45 3.45125 A252 3.45 3.45 3.45 3.45 3.45 3.45 3.45 3.45 3.45130 A142 3.90 3.90 3.90 3.90 3.90 3.79 3.67 3.55 3.43130 A193 3.90 3.90 3.90 3.90 3.90 3.90 3.90 3.78 3.65130 A252 3.90 3.90 3.90 3.90 3.90 3.90 3.90 3.90 3.89140 A142 4.20 4.20 4.20 4.18 4.06 3.91 3.76 3.64 3.52140 A193 4.20 4.20 4.20 4.20 4.20 4.10 4.00 3.87 3.74140 A252 4.20 4.20 4.20 4.20 4.20 4.20 4.20 4.09 3.98150 A142 4.50 4.50 4.50 4.32 4.14 3.99 3.84 3.72 3.60150 A193 4.50 4.50 4.50 4.50 4.41 4.25 4.09 3.96 3.83150 A252 4.50 4.50 4.50 4.50 4.50 4.43 4.35 4.21 4.07160 A142 4.80 4.80 4.61 4.41 4.23 4.08 3.92 3.80 3.68160 A193 4.80 4.80 4.80 4.69 4.49 4.33 4.17 4.04 3.91160 A252 4.80 4.80 4.80 4.80 4.78 4.61 4.43 4.30 4.16200 A142 5.40 5.13 4.89 4.69 4.51 4.36 4.21 4.09 3.96200 A193 5.73 5.45 5.20 4.98 4.79 4.63 4.47 4.34 4.21200 A252 6.00 5.78 5.52 5.29 5.08 4.91 4.74 4.60 4.46250 A142 5.65 5.39 5.17 4.97 4.80 4.65 4.50 4.38 4.25250 A193 5.99 5.72 5.48 5.27 5.09 4.93 4.77 4.64 4.51250 A252 6.35 6.06 5.81 5.59 5.39 5.22 5.05 4.91 4.77




Slab Depth (mm)

Min Mesh Size


4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0Span (m)

100 A142 – – – – – – – – –100 A193 – – – – – – – – –100 A252 – – – – – – – – –110 A142 3.15 3.15 3.15 3.15 3.15 3.15 2.92 2.83 2.73110 A193 3.15 3.15 3.15 3.15 3.15 3.15 3.15 3.05 2.94110 A252 3.15 3.15 3.15 3.15 3.15 3.15 3.15 3.15 3.15125 A142 3.45 3.45 3.45 3.42 3.31 3.19 3.06 2.96 2.86125 A193 3.45 3.45 3.45 3.45 3.45 3.38 3.30 3.19 3.08125 A252 3.45 3.45 3.45 3.45 3.45 3.45 3.45 3.39 3.32130 A142 3.90 3.90 3.84 3.66 3.50 3.37 3.24 3.14 3.03130 A193 3.90 3.90 3.90 3.89 3.78 3.64 3.50 3.39 3.27130 A252 3.90 3.90 3.90 3.90 3.90 3.84 3.77 3.65 3.53140 A142 4.20 4.15 3.94 3.76 3.60 3.47 3.33 3.23 3.12140 A193 4.20 4.20 4.20 4.06 3.89 3.75 3.60 3.49 3.37140 A252 4.20 4.20 4.20 4.20 4.19 4.04 3.88 3.76 3.63150 A142 4.47 4.22 4.01 3.83 3.67 3.54 3.40 3.30 3.19150 A193 4.50 4.50 4.34 4.14 3.96 3.82 3.68 3.57 3.45150 A252 4.50 4.50 4.50 4.45 4.27 4.12 3.96 3.84 3.71160 A142 4.54 4.29 4.07 3.89 3.73 3.60 3.47 3.36 3.25160 A193 4.80 4.63 4.40 4.21 4.03 3.89 3.75 3.64 3.52160 A252 4.80 4.80 4.74 4.53 4.34 4.19 4.03 3.91 3.78200 A142 4.74 4.51 4.30 4.12 3.97 3.84 3.70 3.60 3.49200 A193 5.12 4.86 4.64 4.45 4.28 4.14 3.99 3.88 3.76200 A252 5.51 5.23 4.99 4.78 4.60 4.45 4.29 4.17 4.04250 A142 4.94 4.72 4.52 4.36 4.20 4.07 3.94 3.83 3.72250 A193 5.32 5.08 4.87 4.69 4.52 4.38 4.24 4.13 4.01250 A252 5.72 5.46 5.23 5.04 4.86 4.71 4.56 4.43 4.30




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Slab Depth (mm)

Min Mesh Size


4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0Span (m)

100 A142 – – – – – – – – –100 A193 – – – – – – – – –100 A252 – – – – – – – – –110 A142 – – – – – – – – –110 A193 – – – – – – – – –110 A252 – – – – – – – – –125 A142 3.45 3.29 3.11 2.96 2.83 2.72 2.61 2.53 2.44125 A193 3.45 3.45 3.44 3.28 3.13 3.01 2.89 2.80 2.70125 A252 3.45 3.45 3.45 3.45 3.42 3.29 3.16 3.06 2.95130 A142 3.68 3.46 3.28 3.13 2.99 2.88 2.77 2.68 2.59130 A193 3.90 3.84 3.64 3.47 3.31 3.19 3.07 2.97 2.87130 A252 3.90 3.90 3.90 3.80 3.63 3.50 3.36 3.26 3.15140 A142 3.79 3.57 3.39 3.23 3.09 2.98 2.87 2.78 2.69140 A193 4.20 3.95 3.75 3.58 3.42 3.30 3.17 3.07 2.97140 A252 4.20 4.20 4.12 3.93 3.76 3.62 3.48 3.37 3.26150 A142 3.86 3.64 3.46 3.30 3.16 3.05 2.94 2.85 2.75150 A193 4.27 4.03 3.83 3.66 3.50 3.38 3.25 3.15 3.05150 A252 4.50 4.43 4.21 4.02 3.85 3.71 3.57 3.46 3.34160 A142 3.90 3.68 3.50 3.35 3.21 3.10 2.99 2.90 2.80160 A193 4.32 4.08 3.88 3.71 3.56 3.43 3.30 3.20 3.10160 A252 4.74 4.48 4.26 4.07 3.90 3.77 3.63 3.52 3.40200 A142 4.04 3.84 3.67 3.52 3.38 3.27 3.16 3.07 2.98200 A193 4.47 4.25 4.06 3.89 3.74 3.62 3.49 3.39 3.29200 A252 4.91 4.66 4.45 4.27 4.10 3.97 3.83 3.72 3.61250 A142 4.18 3.99 3.83 3.69 3.56 3.45 3.34 3.25 3.16250 A193 4.62 4.41 4.23 4.08 3.93 3.81 3.68 3.58 3.48250 A252 5.06 4.83 4.64 4.46 4.30 4.17 4.04 3.93 3.81



Dramix® Steel Fibre Reinforced Concrete 20kg/m3 3D-80/60-BG*1.0 hour Fire Rating – Normal Weight Concrete

Slab Depth (mm)

Gauge 0.9mmTotal Applied Load (kN/m2)

2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m)**

101 5.01 4.16 3.88 3.52 3.30 3.02 2.82110 5.17 4.34 4.05 3.67 3.45 3.17 2.95120 5.35 4.52 4.23 3.84 3.62 3.34 3.11130 5.53 4.70 4.41 4.02 3.78 3.49 3.26140 5.70 4.87 4.58 4.18 3.94 3.64 3.41150 5.85 5.03 4.73 4.34 4.09 3.79 3.55160 6.02 5.20 4.91 4.50 4.25 3.95 3.70170 6.16 5.35 5.05 4.65 4.40 4.08 3.83180 6.31 5.51 5.21 4.80 4.55 4.23 3.97190 6.44 5.65 5.34 4.94 4.68 4.35 4.09200 6.58 5.79 5.49 5.08 4.82 4.49 4.22

1.5 hour Fire Rating – Normal Weight Concrete

Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m)**

110 3.64 3.06 2.86 2.60 2.45 2.25 2.10120 3.82 3.23 3.02 2.76 2.59 2.39 2.23130 3.98 3.40 3.19 2.91 2.74 2.53 2.37140 4.16 3.56 3.35 3.06 2.89 2.68 2.51150 4.31 3.71 3.50 3.20 3.03 2.80 2.63160 4.45 3.85 3.63 3.34 3.16 2.93 2.74170 4.63 4.02 3.80 3.50 3.31 3.08 2.88180 4.77 4.16 3.95 3.63 3.45 3.20 3.01190 4.89 4.29 4.06 3.76 3.56 3.32 3.12200 5.02 4.43 4.20 3.88 3.69 3.44 3.23


Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m)**

125 3.58 3.04 2.85 2.60 2.45 2.27 2.12130 3.65 3.11 2.92 2.66 2.52 2.32 2.17140 3.84 3.29 3.09 2.83 2.67 2.48 2.31150 3.99 3.44 3.24 2.97 2.80 2.60 2.44160 4.15 3.59 3.39 3.12 2.95 2.73 2.56170 4.30 3.74 3.54 3.26 3.09 2.87 2.69180 4.46 3.90 3.69 3.40 3.23 3.00 2.82190 4.60 4.04 3.83 3.54 3.36 3.13 2.94200 4.73 4.16 3.95 3.66 3.48 3.24 3.05

Notes:These tables are not applicable to slabs where the deck is supplied in single span lengths (use the Multideck Toolkit design software to determine the suitable bottom bar requirements). These values are for unpropped spans only. For cases where the deck is propped, please use the Multideck Toolkit design software.Use of Dramix® Steel Fibre reinforcement is limited to the gauges shown above. * This Dramix® Steel Fibre specification was previously referenced 20kg/m3 RC-80/60-BN.** Refer to p.14, note 11 for details.For load / span conditions beyond the scope of these tables, the Multideck Toolkit design software should be used to check for a solution. This software provides an accurate and detailed analysis and Kingspan encourages its use for all design checks.



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Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m)**

101 5.22 4.34 4.05 3.66 3.44 3.16 2.94110 5.37 4.50 4.20 3.81 3.58 3.29 3.07120 5.54 4.68 4.38 3.98 3.74 3.45 3.22130 5.72 4.86 4.55 4.16 3.91 3.61 3.38140 5.88 5.03 4.73 4.32 4.07 3.76 3.52150 6.03 5.20 4.88 4.48 4.23 3.91 3.66160 6.19 5.35 5.05 4.63 4.38 4.05 3.80170 6.34 5.52 5.20 4.79 4.53 4.20 3.95180 6.50 5.68 5.37 4.95 4.69 4.35 4.09190 6.62 5.80 5.50 5.08 4.81 4.48 4.20200 6.75 5.95 5.64 5.21 4.95 4.61 4.34


Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m)**

110 3.74 3.14 2.94 2.67 2.51 2.31 2.16120 3.91 3.31 3.10 2.83 2.66 2.45 2.30130 4.09 3.48 3.27 2.98 2.81 2.60 2.43140 4.24 3.63 3.41 3.13 2.95 2.73 2.55150 4.38 3.78 3.55 3.26 3.08 2.85 2.67160 4.56 3.95 3.73 3.42 3.23 3.00 2.81170 4.71 4.10 3.88 3.56 3.38 3.13 2.95180 4.86 4.24 4.02 3.70 3.51 3.27 3.06190 4.99 4.38 4.16 3.84 3.64 3.39 3.19200 5.13 4.52 4.30 3.98 3.77 3.52 3.31


Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m)**

125 3.66 3.10 2.91 2.66 2.50 2.31 2.16130 3.73 3.19 2.99 2.73 2.57 2.38 2.23140 3.91 3.36 3.16 2.89 2.73 2.52 2.36150 4.07 3.51 3.30 3.03 2.87 2.66 2.48160 4.23 3.67 3.46 3.18 3.01 2.79 2.62170 4.37 3.80 3.59 3.30 3.13 2.91 2.73180 4.52 3.95 3.74 3.45 3.27 3.04 2.86190 4.66 4.09 3.88 3.59 3.40 3.16 2.98200 4.80 4.24 4.02 3.73 3.54 3.30 3.10




Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m)**

101 5.61 4.67 4.36 3.95 3.70 3.40 3.16110 5.77 4.84 4.52 4.09 3.84 3.54 3.30120 5.92 5.01 4.69 4.26 4.01 3.70 3.45130 6.08 5.16 4.84 4.42 4.16 3.84 3.59140 6.23 5.34 5.01 4.58 4.32 3.99 3.73150 6.39 5.50 5.18 4.74 4.48 4.14 3.88160 6.53 5.66 5.33 4.89 4.63 4.29 4.02170 6.69 5.82 5.49 5.05 4.78 4.44 4.16180 6.83 5.96 5.64 5.20 4.92 4.58 4.30190 6.98 6.12 5.80 5.35 5.07 4.72 4.44200 7.09 6.25 5.93 5.48 5.20 4.85 4.56


Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m)**

110 3.92 3.30 3.09 2.80 2.63 2.43 2.27120 4.10 3.47 3.25 2.96 2.79 2.57 2.41130 4.27 3.64 3.42 3.12 2.94 2.72 2.54140 4.43 3.80 3.57 3.27 3.09 2.85 2.67150 4.59 3.95 3.72 3.41 3.22 2.98 2.80160 4.74 4.11 3.88 3.56 3.37 3.13 2.93170 4.88 4.25 4.02 3.70 3.50 3.25 3.05180 5.00 4.38 4.14 3.82 3.62 3.37 3.16190 5.16 4.52 4.29 3.96 3.76 3.50 3.29200 5.30 4.67 4.43 4.10 3.90 3.63 3.41


Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m)**

125 3.80 3.23 3.03 2.77 2.61 2.41 2.25130 3.88 3.31 3.11 2.84 2.68 2.48 2.31140 4.06 3.48 3.27 3.00 2.83 2.62 2.45150 4.21 3.63 3.42 3.14 2.97 2.75 2.58160 4.37 3.78 3.57 3.28 3.10 2.88 2.70170 4.49 3.91 3.70 3.41 3.23 3.00 2.81180 4.63 4.05 3.83 3.53 3.35 3.12 2.93190 4.80 4.22 4.00 3.70 3.50 3.27 3.07200 4.94 4.36 4.13 3.83 3.63 3.39 3.19




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Sound Attenuation

Predicted Site Acoustic Performance of Floors with Multideck 50-V3

Slab Depth (mm)

Predicted Acoustic Performance DnT,w + Ctr (dB) for Airborne SoundDescription of Floor

Slab on Deck with no Ceiling and no Floor

Treatment

Slab on Deck with Ceiling and no Floor

Treatment

Slab on Deck with Ceiling and Platform

Floor (FFT4)

Slab on Deck with Ceiling and Battened

Floor (FFT3)

Slab on Deck with Ceiling and Isolated

Screed

120 36 to 40 46 to 50 45 to 49 46 to 50 45 to 49130 37 to 41 47 to 51 46 to 50 47 to 51 46 to 50140 38 to 42 48 to 52 47 to 51 48 to 52 47 to 51150 39 to 43 49 to 53 48 to 52 49 to 53 48 to 52160 40 to 44 50 to 54 49 to 53 50 to 54 49 to 53175 41 to 45 51 to 55 50 to 54 51 to 55 50 to 54200 43 to 47 53 to 57 52 to 56 53 to 57 52 to 56250 47 to 51 57 to 61 56 to 60 57 to 61 56 to 60

Slab Depth (mm)

Predicted Acoustic Performance L’nT,w (dB) for Impact SoundDescription of Floor


Treatment


Treatment


Floor (FFT4)


Floor (FFT3)


Screed

120 to 250 76 to 70 68 to 72 51 to 55 53 to 57 51 to 55

Notes:The tables are based on a minimum concrete density of 2350kgs/m3 and can be used with mesh or Dramix® Steel Fibre reinforcement. Lightweight concrete may lead to a reduction in acoustic performance of about 2dB to 3dB on the values shown above. Values of DnT,w are available from our Technical Services Department. The junction details between the walls and floors must be appropriately detailed to ensure that flanking sound is minimised. The values in the table are based on the new (since 2003) measurement index DnT,w + Ctr for airborne sound. The Ctr term is a spectrum adaptation value which is generally negative and adjusts the index to take account of low frequency sounds that often cause problems in residential buildings. Thus the DnT,w + Ctr rating is lower than the DnT,w rating for the same construction.

Kingspan Insulated Panels’ Structural Products & Systems sub-division is a member of The Steel Construction Institute and has undertaken extensive testing on the accoustic performance of the Multideck range of composite steel slabs. The testing was carried out on behalf of Kingspan by The Steel Construction Institute and resulted in a comprehensive report: ‘Acoustic Performance of Kingspan Composite Floors’, copies of which can be obtained from our Technical Services Department.


Multideck 60

Contents




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Introduction

The original and still the most popular deck in the market is a 60mm high, structurally efficient trapezoidal profile providing an excellent composite union between steel and concrete to maximise the load carrying capacity. Unpropped construction stage spans up to 4.7m can be achieved.

Multideck 60 Floor Decking System The efficient shape of the deck and resulting composite slab make an excellent option for composite beam design. Key benefits include:– Concrete Volume Savings

Due to its unique profile Multideck 60-V2 requires less concrete than other decks to achieve any given slab thickness. Multideck 60-V2 can save up to 20% concrete volume compared with typical re-entrant profiles.

– Greater Design Efficiency The larger range of Multideck gauge thicknesses allow much closer matching of design requirements and deck performance. Kingspan Multideck 60-V2 can be used with Dramix® Steel Fibre Reinforcem ent to eliminate mesh in slab design.

– Quicker Installation The Multideck range has a 1m cover width requiring fewer panels and sidelaps. No temporary supports are required under most conditions. A wide range of accessories allows for easy installation of ceilings and services.

– Technical Support Kingspan Toolkit software includes comprehensive composite floor design software which allows the user to easily select the right Multideck solution. The design software is available for download from the web site www.kingspanstructural.com.

The Multideck design department provides a comprehensive engineering and advisory service to specifiers and end users on the use of the Multideck range of composite decks.


Product Data

Material Specification – 350N/mm2 Steel Steel strip for Multideck 60-V2 complies with BS EN 10143 and BS EN 10346 with a guaranteed minimum yield strength of 350N/mm2 and a minimum total coating mass (including both sides) of 275g/m2.


Reinforcement Reinforcement of the slab to prevent cracking at all intermediate supports is required in BS 5950: Part 4 1994.

Steel reinforcement for anti-crack or fire engineering purposes in accordance with British Standards: Hot rolled bars – BS 4449; Fabric reinforcement – BS 4483: 1998. A reinforced solution using Dramix® Steel Fibres from Bekaert is available, see pages 118 to 121 for details.


Concrete Volumes and Specification Load / span tables are based on Grade C25/30 concrete, having a design strength of 30N/mm2. Solutions using other concrete strengths are possible with the Multideck design software.

Density of normal weight concrete: 2400kg/m3 at wet stage.

Density of lightweight concrete: 1900kg/m3 at wet stage.

All concrete used with Multideck in the construction of composite slabs should comply with the recommendations in BS 8110: 1997.

Embossments Raised diagonal embossments in opposite directions on each face of the webs of the decking provide the mechanical connection between the steel and the hardened concrete.

References Engineers are advised to consult SCI / MCRMA Technical Paper 13 ‘Composite Slabs and Beams using Steel Decking: Best Practice for Design and Construction’.

1000 cover width

142mm

53mm nominal

332mm

59mm

5mm

Gauge: 0.9, 1.0, 1.1 and 1.2mmMaximum length: 12 metres

213mm119mm 63mm 15mm

59˚19mm

gauge9mm

61mm


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(mm)


(cm4/m)

Steel Area (mm2/m)


(kg/m2) (kN/m2) Sagging Hogging0.90 9.34 0.092 39.40 81.00 1137.87 7.09 6.951.00 10.37 0.102 36.60 91.83 1270.18 8.41 8.061.10 11.41 0.112 35.00 102.70 1402.49 9.72 9.151.20 12.45 0.122 35.00 112.30 1534.80 11.01 10.22


Slab Depth (mm)



Wet Dry Wet Dry120 0.085 2.040 1.998 1.621 1.538130 0.095 2.275 2.228 1.808 1.714140 0.105 2.511 2.459 1.990 1.891150 0.115 2.740 2.689 2.180 2.067160 0.125 2.982 2.920 2.367 2.244175 0.140 3.335 3.266 2.646 2.509200 0.165 3.924 3.842 3.112 2.950250 0.215 5.101 4.994 4.044 3.833




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Load / Span Tables

Load / Span Tables When using load tables for Multideck 60-V2 please take into consideration the following notes:


Support widths greater than 100mm?The span capacities shown on the following pages can be increased by the difference between the actual support widths and 100mm.

The deck span (m) used in the table is based on the (Support c/c – support bearing) + the deck depth. All values in metres.

Example Support widths 140mm and 200mm. Span values can be increased by (140 + 200)/2 – 100 = 70mm.

MD60-V2 1.2mm double span deck (no props). 150mm thick slab – normal weight concrete.

Construction stage span: 4.0kN/m2 load column = 4000mm. With support widths of 140 and 200 the increased span capacity is 4000 + 70 = 4070mm.

1 The table shows the maximum span in meters of the Multideck product for the applied loads and slab depths shown. Values are shown for each gauge where the deck is single span or double spans, plus values for propped spans during construction.

2 For confirmation of the maximum construction stage unpropped spans see page 111.

3 The span values are based on the use of a minimum 100mm bearing support. Where the bearing exceeds 100mm the span capacity can be increased. See example below.

4 Deck must lie flat on all supports beams. Point only contact will affect the design loading.

5 The self weight of the slab has been taken in to account in the table and should not be included in the applied loading.

6 All tabulated span capacities include applied construction stage load of 1.5kN/m2 for spans of 3.0m or larger. For spans less than 3.0m the construction load is 4.5/span(m) kN/m2.

7 The composite slab should meet the requirements of BS5950 Part 4 1994 with regard to their composite behaviour under normal loading.

8 The concrete grade is a minimum of C25/30 with a minimum ultimate strength is of 30N/mm2.

9 Minimum reinforcement mesh sizes shown meet or exceed 0.1% gross cross sectional area of the concrete at the supports. Minimum reinforcement should be increased where:-

a) The slab is propped during construction. b) It is required to control the size of cracking in the concrete

i.e. where a brittle finishes is applied to the slab. c) There are moving loads.

Support c/c

100mm minimum

100mm minimum

Mesh reinforcement should be placed near the upper edge of the concrete slab in a zone of 15mm to 40mm from the top surface. Concrete cover to reinforcement should be increased where slab exposure dictates.

10 Where in the table the span value is shown in red this shows the maximum permissible span where there is a minimum of one stud per trough

11 Total applied load referred to in the table is a working load derived from the sum of the loads supported by the composite slab (live load, finishes, ceilings, services, partitions). Loads shown are based on Ultimate capacity / 1.6. The slab self weight has already been taken in to account do not include in applied loads.

12 Deflection under construction loading (wet concrete etc) has been limited to that stipulated in BS5950 Part 4 1994. At the composite stage the suggested maximum ratio of slab span to slab depth are 35 for NWC and 30 for LWC to control deflection.

13 For the propped during construction cases the temporary supports should remain in place until the concrete has achieved 75% of it 28 day cube strength often available after 7 days.

14 Where more than one prop is provided they should be equally spaced across the span of the Multideck.

15 Where ★ appears the addition of props gives no further spanning benefit in these cases.


Normal Weight Concrete Unpropped (Steel – 350N/mm2)


Slab Depth(mm)

Min Mesh Size

Gauge = 0.9mm Gauge = 1.0mmTotal Applied Load (kN/m2) SLS Total Applied Load (kN/m2) SLS

4.0 6.0 8.0 10.0 12.0 14.0 4.0 6.0 8.0 10.0 12.0 14.0Span (m)* Span (m)*

120 A98 3.26 3.26 3.26 2.99 2.65 2.39 3.39 3.39 3.39 3.17 2.81 2.543.20 2.98 2.75 3.39 3.16 2.88

130 A142 3.15 3.15 3.15 3.15 2.86 2.58 3.28 3.28 3.28 3.28 3.03 2.733.15 2.97 3.28 3.10

140 A142 3.06 3.06 3.06 3.06 3.06 2.77 3.18 3.18 3.18 3.18 3.18 2.923.06 3.18

150 A142 2.97 2.97 2.97 2.97 2.97 2.95 3.09 3.09 3.09 3.09 3.09 3.092.97

160 A142 2.90 2.90 2.90 2.90 2.90 2.90 3.01 3.01 3.01 3.01 3.01 3.01175 A193 2.79 2.79 2.79 2.79 2.79 2.79 2.91 2.91 2.91 2.91 2.91 2.91200 A193 2.63 2.63 2.63 2.63 2.63 2.63 2.76 2.76 2.76 2.76 2.76 2.76250 A252 2.37 2.37 2.37 2.37 2.37 2.37 2.54 2.54 2.54 2.54 2.54 2.54120 A98 3.52 3.52 3.49 2.99 2.65 2.39 3.81 3.81 3.69 3.17 2.81 2.54

3.52 3.23 2.98 2.75 3.77 3.44 3.18 2.88130 A142 3.42 3.42 3.42 3.24 2.86 2.58 3.70 3.70 3.70 3.43 3.03 2.73

3.42 3.18 2.97 3.65 3.38 3.10140 A142 3.32 3.32 3.32 3.32 3.07 2.77 3.60 3.60 3.60 3.60 3.24 2.92

3.32 3.14 3.57 3.32150 A142 3.24 3.24 3.24 3.24 3.24 2.95 3.51 3.51 3.51 3.51 3.45 3.11

3.24 3.51 3.50160 A142 3.16 3.16 3.16 3.16 3.16 3.13 3.43 3.43 3.43 3.43 3.43 3.29

3.16 3.43175 A193 3.05 3.05 3.05 3.05 3.05 3.05 3.31 3.31 3.31 3.31 3.31 3.31200 A193 2.87 2.87 2.87 2.87 2.87 2.87 3.14 3.14 3.14 3.14 3.14 3.14250 A252 2.58 2.58 2.58 2.58 2.58 2.58 2.84 2.84 2.84 2.84 2.84 2.84


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0 4.0 6.0 8.0 10.0 12.0 14.0Span (m)* Span (m)*

120 A98 3.52 3.52 3.52 3.32 2.94 2.66 3.62 3.62 3.60 3.32 2.94 2.663.52 3.29 2.98 3.60 3.28 2.98

130 A142 3.40 3.40 3.40 3.40 3.16 2.86 3.50 3.50 3.50 3.50 3.16 2.863.40 3.21 3.50 3.20

140 A142 3.30 3.30 3.30 3.30 3.30 3.05 3.39 3.39 3.39 3.39 3.38 3.053.30 3.39 3.39

150 A142 3.21 3.21 3.21 3.21 3.21 3.21 3.30 3.30 3.30 3.30 3.30 3.243.30

160 A142 3.12 3.12 3.12 3.12 3.12 3.12 3.21 3.21 3.21 3.21 3.21 3.21175 A193 3.02 3.02 3.02 3.02 3.02 3.02 3.10 3.10 3.10 3.10 3.10 3.10200 A193 2.86 2.86 2.86 2.86 2.86 2.86 2.95 2.95 2.95 2.95 2.95 2.95250 A252 2.63 2.63 2.63 2.63 2.63 2.63 2.71 2.71 2.71 2.71 2.71 2.71120 A98 4.09 4.09 3.86 3.32 2.94 2.66 4.21 4.20 3.86 3.32 2.94 2.66

3.93 3.61 3.29 2.98 4.06 3.69 3.28 2.98130 A142 3.97 3.97 3.97 3.57 3.16 2.86 4.21 4.21 4.17 3.57 3.16 2.86

3.84 3.54 3.21 4.21 3.97 3.53 3.20140 A142 3.86 3.86 3.86 3.83 3.38 3.05 4.10 4.10 4.10 3.83 3.38 3.05

3.86 3.75 3.43 4.10 3.78 3.42150 A142 3.76 3.76 3.76 3.76 3.60 3.24 4.00 4.00 4.00 4.00 3.60 3.24

3.76 3.64 4.00 3.63160 A142 3.67 3.67 3.67 3.67 3.67 3.43 3.90 3.90 3.90 3.90 3.81 3.43

3.67 3.90 3.84175 A193 3.55 3.55 3.55 3.55 3.55 3.55 3.76 3.76 3.76 3.76 3.76 3.70

3.76200 A193 3.36 3.36 3.36 3.36 3.36 3.36 3.57 3.57 3.57 3.57 3.57 3.57250 A252 3.07 3.07 3.07 3.07 3.07 3.07 3.26 3.26 3.26 3.26 3.26 3.26

Notes: Total applied load referred to in the above table is a working load based on combinations of live loads, finishes, ceilings, services and partitions (excluding slab self weight).Figures in red are maximum permissible spans in situations where there is one stud per trough.*See diagram on page 37.

Load / Span Tables


Mul

tide

ck 5

0M

ulti

deck

60

Mul

tide

ck 8

0M

ulti

deck

146

Normal Weight Concrete Propped (Steel – 350N/mm2)


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0 4.0 6.0 8.0 10.0 12.0 14.0Span (m)* Span (m)*

120 A98 4.20 ★ ★ ★ ★ ★ 4.20 ★ ★ ★ ★ ★

3.97 4.18130 A142 4.55 3.77 ★ ★ ★ ★ 4.55 3.98 ★ ★ ★ ★

4.20 3.68 4.45 3.84140 A142 4.88 3.99 3.42 ★ ★ ★ 4.90 4.20 ★ ★ ★ ★

4.90 4.41 3.90 3.46 4.69 4.06150 A142 5.12 4.20 3.61 3.20 ★ ★ 5.25 4.41 3.80 ★ ★ ★

5.25 4.60 4.10 3.65 3.31 4.89 4.27 3.80160 A142 5.34 4.40 3.79 3.36 3.03 ★ 5.58 4.60 3.97 3.53 ★ ★

5.45 4.78 4.30 3.83 3.48 5.60 5.07 4.47 3.98 3.62175 A193 5.64 4.67 4.04 3.58 3.24 ★ 5.88 4.88 4.22 3.76 3.40 ★

5.69 5.01 4.53 4.09 3.71 3.42 6.04 5.32 4.74 4.24 3.86 3.55200 A193 5.70 5.08 4.41 3.93 3.56 3.27 6.24 5.29 4.61 4.11 3.73 3.43

5.35 4.87 4.47 4.07 3.76 5.68 5.16 4.63 4.22 3.89250 A252 5.13 5.13 5.07 4.54 4.13 3.81 5.64 5.64 5.26 4.72 4.30 3.97

5.13 5.01 4.70 4.35 5.64 5.30 4.85 4.49200 A193 6.03 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

6.39250 A252 6.55 5.78 ★ ★ ★ ★ 6.94 5.99 ★ ★ ★ ★

5.89 5.40 6.24


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0 4.0 6.0 8.0 10.0 12.0 14.0Span (m)* Span (m)*

120 A98 4.20 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

4.20130 A142 4.55 4.14 ★ ★ ★ ★ 4.55 ★ ★ ★ ★ ★

4.55 4.55140 A142 4.90 4.36 ★ ★ ★ ★ 4.90 4.36 ★ ★ ★ ★

4.84 4.19 4.83 4.18150 A142 5.25 4.57 3.94 ★ ★ ★ 5.25 4.57 ★ ★ ★ ★

5.07 4.40 3.92 5.06 4.39160 A142 5.60 4.77 4.12 ★ ★ ★ 5.60 4.77 4.12 ★ ★ ★

5.29 4.60 4.10 5.28 4.59 4.10175 A193 6.07 5.05 4.38 3.90 ★ ★ 6.06 5.05 4.38 3.90 ★ ★

6.12 5.59 4.88 4.36 3.97 3.66 6.12 5.58 4.87 4.35 3.96200 A193 6.51 5.47 4.76 4.25 3.86 3.56 6.51 5.46 4.76 4.25 3.86 ★

6.71 5.96 5.30 4.75 4.33 4.00 6.98 6.04 5.29 4.75 4.33 4.00250 A252 6.10 6.10 5.42 4.87 4.45 4.10 6.48 6.16 5.42 4.87 4.44 4.10

6.01 5.43 4.97 4.60 6.48 6.01 5.42 4.97 4.60200 A193 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

250 A252 7.23 ★ ★ ★ ★ ★ 7.23 ★ ★ ★ ★ ★

7.29 6.56 7.59 6.79Notes: Total applied load referred to in the above table is a working load based on combinations of live loads, finishes, ceilings, services and partitions (excluding slab self weight).Figures in red are maximum permissible spans in situations where there is one stud per trough.Permanent Support Temporary Support *See diagram on page 37.


Lightweight Concrete Unpropped (Steel – 350N/mm2)


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0 4.0 6.0 8.0 10.0 12.0 14.0Span (m)* Span (m)*

120 A98 3.46 3.23 3.00 2.99 2.65 2.39 3.64 3.34 3.03 3.00 2.81 2.543.00 2.99 2.71 3.00 2.85

130 A142 3.37 3.37 3.25 3.24 2.86 2.58 3.52 3.52 3.27 3.25 3.03 2.733.25 3.21 2.93 3.25 3.07

140 A142 3.28 3.28 3.28 3.28 3.07 2.77 3.42 3.42 3.42 3.42 3.24 2.923.28 3.14 3.42 3.28

150 A142 3.19 3.19 3.19 3.19 3.19 2.95 3.32 3.32 3.32 3.32 3.32 3.113.19 3.32

160 A142 3.11 3.11 3.11 3.11 3.11 3.11 3.24 3.24 3.24 3.24 3.24 3.24175 A193 3.01 3.01 3.01 3.01 3.01 3.01 3.13 3.13 3.13 3.13 3.13 3.13200 A193 2.86 2.86 2.86 2.86 2.86 2.86 2.97 2.97 2.97 2.97 2.97 2.97250 A252 2.60 2.60 2.60 2.60 2.60 2.60 2.74 2.74 2.74 2.74 2.74 2.74120 A98 3.70 3.60 3.49 2.99 2.65 2.39 3.82 3.60 3.60 3.17 2.81 2.54

3.60 3.28 2.99 2.71 3.50 3.14 2.85130 A142 3.63 3.63 3.63 3.24 2.86 2.58 3.93 3.90 3.90 3.43 3.03 2.73

3.50 3.23 2.93 3.72 3.39 3.07140 A142 3.54 3.54 3.54 3.49 3.07 2.77 3.84 3.84 3.84 3.68 3.24 2.92

3.54 3.41 3.14 3.84 3.63 3.28150 A142 3.45 3.45 3.45 3.45 3.28 2.95 3.75 3.75 3.75 3.75 3.45 3.11

3.45 3.34 3.75 3.49160 A142 3.38 3.38 3.38 3.38 3.38 3.13 3.66 3.66 3.66 3.66 3.66 3.29

3.38 3.66175 A193 3.27 3.27 3.27 3.27 3.27 3.27 3.55 3.55 3.55 3.55 3.55 3.55200 A193 3.12 3.12 3.12 3.12 3.12 3.12 3.38 3.38 3.38 3.38 3.38 3.38250 A252 2.83 2.83 2.83 2.83 2.83 2.83 3.10 3.10 3.10 3.10 3.10 3.10


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0 4.0 6.0 8.0 10.0 12.0 14.0Span (m)* Span (m)*

120 A98 3.74 3.42 3.11 3.00 2.94 2.66 3.82 3.46 3.15 3.00 2.94 2.663.00 2.95 3.00 2.95

130 A142 3.65 3.65 3.34 3.25 3.16 2.86 3.72 3.72 3.39 3.25 3.16 2.86 3.25 3.18 3.25 3.17

140 A142 3.54 3.54 3.54 3.50 3.38 3.05 3.64 3.64 3.63 3.50 3.38 3.053.50 3.39 3.50 3.39

150 A142 3.44 3.44 3.44 3.44 3.44 3.24 3.54 3.54 3.54 3.54 3.54 3.243.44 3.54

160 A142 3.36 3.36 3.36 3.36 3.36 3.36 3.45 3.45 3.45 3.45 3.45 3.433.45

175 A193 3.24 3.24 3.24 3.24 3.24 3.24 3.34 3.34 3.34 3.34 3.34 3.34200 A193 3.08 3.08 3.08 3.08 3.08 3.08 3.17 3.17 3.17 3.17 3.17 3.17250 A252 2.84 2.84 2.84 2.84 2.84 2.84 2.92 2.92 2.92 2.92 2.92 2.92120 A98 3.91 3.60 3.60 3.32 2.94 2.66 3.97 3.60 3.60 3.32 2.94 2.66

3.60 3.26 2.95 3.60 3.25 2.95130 A142 4.21 3.90 3.90 3.57 3.16 2.86 4.27 3.90 3.90 3.57 3.16 2.86

3.90 3.51 3.18 3.90 3.50 3.17140 A142 4.11 4.11 4.11 3.83 3.38 3.05 4.36 4.20 4.20 3.83 3.38 3.05

4.10 3.75 3.39 4.20 3.74 3.39150 A142 4.02 4.02 4.02 4.02 3.60 3.24 4.26 4.26 4.26 4.07 3.60 3.24

3.98 3.60 4.26 3.98 3.60160 A142 3.93 3.93 3.93 3.93 3.81 3.43 4.17 4.17 4.17 4.17 3.81 3.43

3.93 3.81 4.17 3.80175 A193 3.81 3.81 3.81 3.81 3.81 3.70 4.04 4.04 4.04 4.04 4.04 3.70

3.81 4.04200 A193 3.62 3.62 3.62 3.62 3.62 3.62 3.85 3.85 3.85 3.85 3.85 3.85250 A252 3.33 3.33 3.33 3.33 3.33 3.33 3.53 3.53 3.53 3.53 3.53 3.53


Load / Span Tables


Mul

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ck 5

0M

ulti

deck

60

Mul

tide

ck 8

0M

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146

Lightweight Concrete Propped (Steel – 350N/mm2)


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0 4.0 6.0 8.0 10.0 12.0 14.0Span (m)* Span (m)*

120 A98 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

130 A142 3.94 3.90 ★ ★ ★ ★ 4.06 ★ ★ ★ ★ ★

3.75140 A142 4.20 4.17 ★ ★ ★ ★ 4.31 4.20 ★ ★ ★ ★

4.20 3.98 4.15150 A142 4.50 4.41 3.75 ★ ★ ★ 4.56 4.50 3.94 ★ ★ ★

4.50 4.21 3.72 4.38 3.87160 A142 4.80 4.63 3.94 3.47 ★ ★ 4.81 4.80 4.14 ★ ★ ★

4.80 4.42 3.91 3.53 4.59 4.07175 A193 5.25 4.94 4.22 3.72 3.35 ★ 5.25 5.16 4.42 3.90 ★ ★

5.21 4.68 4.18 3.77 5.25 4.90 4.34 3.93200 A193 6.00 5.42 4.65 4.10 3.70 3.38 6.00 5.64 4.84 4.28 3.87 3.54

5.59 5.04 4.56 3.94 3.47 5.93 5.34 4.76 4.11 3.62250 A252 5.63 5.63 5.40 4.79 4.19 3.71 6.17 6.17 5.60 4.98 4.37 3.87

5.63 4.81 5.89 5.02200 A193 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

250 A252 6.99 6.20 ★ ★ ★ ★ 7.40 6.47 ★ ★ ★ ★

6.57


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0 4.0 6.0 8.0 10.0 12.0 14.0Span (m)* Span (m)*

120 A98 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

130 A142 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

140 A142 4.41 4.20 ★ ★ ★ ★ 4.46 ★ ★ ★ ★ ★

4.20150 A142 4.66 4.50 4.09 ★ ★ ★ 4.72 4.50 ★ ★ ★ ★

4.50 4.50160 A142 4.91 4.80 4.29 ★ ★ ★ 4.97 4.80 4.29 ★ ★ ★

4.73 4.19 4.72175 A193 5.28 5.25 4.57 4.04 ★ ★ 5.35 5.25 4.57 ★ ★ ★

5.04 4.47 4.05 5.03 4.46200 A193 6.00 5.82 5.01 4.44 4.01 ★ 6.00 5.82 5.01 4.43 4.00 ★

6.00 5.51 4.90 4.27 3.75 6.00 5.50 4.89 4.39250 A252 6.62 6.62 5.77 5.13 4.53 4.01 7.03 6.65 5.77 5.13 4.65 4.13

6.10 5.20 7.03 6.29 5.35 4.66200 A193 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

250 A252 7.50 ★ ★ ★ ★ ★ 7.50 ★ ★ ★ ★ ★

6.90 7.19Notes: Total applied load referred to in the above table is a working load based on combinations of live loads, finishes, ceilings, services and partitions (excluding slab self weight).Figures in red are maximum permissible spans in situations where there is one stud per trough.Permanent Support Temporary Support *See diagram on page 37.


Mul

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0M

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60

Mul

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ck 8

0M

ulti

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146

Fire Resistance

Fire Performance – Mesh1 The fire resistance tables for Multideck 60-V2 on the

following pages are based upon fire test data from full scale tests performed at the Warrington Fire Research Centre UK, April 1991.

2 All stated slab depths comply with the minimum fire insulation criteria of BS 476: Part 20 1987.

3 The composite slab is assumed to be continuous over one or more intermediate supports. i.e. minimum double span.

4 For 2 hour rated slabs the mesh noted within the ‘End Span’ table should be continuous over the first internal support, with the mesh shown in the ‘Internal Span’ table being applicable over the second internal support and subsequent spans.

5 Minimum laps should be 300mm for A142 mesh and 400mm for A193 and A252 mesh.

6 The mesh should be placed between 15 and 40mm from the upper surface of the slab (this range caters for lap areas).

7 The tables are based upon Grade 30 concrete, reinforcement having a yield strength of 460N/mm2.

8 The tables must be read in conjunction with load / span tables for Multideck 60-V2 to verify the structural integrity of the composite slab.

9 The values in all the tables are relevant to unpropped construction. For propped and single span conditions use the Kingspan Toolkit Software or contact Kingspan Technical Services.

10 The tables take into account the reduced partial factor of 0.8 as permitted in BS 5950: Part 8 for non-permanent imposed loads. The tables are presented in terms of total specified imposed load (non-permanent and permanent). It is assumed that the permanent imposed loads for partitions, finishes, ceilings and services are equivalent to 1.7kN/m2 in all cases. The tables are therefore appropriate for office type applications.

For other applications where the imposed loads are almost entirely permanent the total load should be adjusted accordingly before reading from the tables, eg: – 150mm normal weight concrete plantroom slab

and A142 mesh;– 7.5kN/m2 live load;– 1.2kN/m2 50mm screed finish 0.5kn/m2 ceilings

and services;– 1 hour fire rating.

Multideck 60-V2 profile Total applied load = 1.2 + 0.5 + 7.5/0.8 = 11.075kN/m2From table overleaf maximum span = 3.14m11 The * denotes that the mesh provided, although satisfying

the fire resistance requirement, does not comply with the minimum anti-crack reinforcement requirement of BS 5950: Part 4.


12 For load / span conditions beyond the scope of these tables the Fire Engineering Method as detailed in the SCI Publication 056 should be adopted or use Kingspan Toolkit Software.

Please contact our Technical Services Department for advice.

See following pages for MD 60-V2 Fire Resistance Tables.

13 Multideck 60-V2 can be used with Dramix® Steel Fibre Reinforcement as an alternative to conventional fire engineering using steel mesh (see pages 118 to 121).

Note:For load / span conditions beyond the scope of these tables, the Kingspan Multideck design software should be used to check for a solution. Toolkit Design Software provides an accurate and detailed analysis and Kingspan encourages its use for all design checks.




Slab Depth (mm)

Min Mesh Size

Fire Rating 1.0 hour Fire Rating 1.5 hoursTotal Applied Load (kN/m2) Total Applied Load (kN/m2)

4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0Span (m) Span (m)

130 A142 4.01 3.78 3.58 3.43 3.27 3.15 3.03 2.93 2.83 – – – – – – – – –130 A193 4.33 4.08 3.87 3.70 3.53 3.40 3.27 3.17 3.06 – – – – – – – – –130 A252 4.55 4.39 4.16 3.98 3.79 3.65 3.51 3.40 3.29 – – – – – – – – –140 A142 4.18 3.94 3.74 3.58 3.42 3.30 3.17 3.07 2.97 3.65 3.44 3.27 3.13 2.99 2.89 2.78 2.70 2.61140 A193 4.52 4.26 4.05 3.88 3.70 3.57 3.43 3.33 3.22 4.00 3.77 3.58 3.43 3.28 3.16 3.04 2.95 2.85140 A252 4.87 4.59 4.36 4.17 3.98 3.84 3.69 3.58 3.46 4.35 4.10 3.89 3.73 3.56 3.43 3.30 3.20 3.10150 A142 4.25 4.01 3.82 3.66 3.50 3.38 3.25 3.15 3.05 3.79 3.58 3.41 3.27 3.13 3.02 2.91 2.82 2.73150 A193 4.60 4.34 4.13 3.96 3.78 3.65 3.52 3.41 3.30 4.16 3.94 3.74 3.59 3.43 3.31 3.19 3.09 2.99150 A252 4.96 4.69 4.45 4.27 4.08 3.94 3.79 3.68 3.56 4.53 4.28 4.07 3.90 3.73 3.60 3.47 3.36 3.25160 A142 4.30 4.07 3.87 3.72 3.56 3.44 3.31 3.21 3.11 3.85 3.65 3.48 3.34 3.19 3.08 2.97 2.88 2.79160 A193 4.65 4.40 4.19 4.02 3.85 3.72 3.58 3.47 3.36 4.23 4.01 3.82 3.66 3.50 3.38 3.26 3.16 3.06160 A252 5.02 4.75 4.52 4.34 4.15 4.01 3.86 3.74 3.62 4.61 4.37 4.16 3.99 3.82 3.69 3.55 3.45 3.34175 A142 4.37 4.15 3.95 3.80 3.64 3.52 3.40 3.30 3.20 3.91 3.71 3.54 3.40 3.26 3.15 3.04 2.96 2.87175 A193 4.72 4.48 4.28 4.11 3.94 3.81 3.67 3.57 3.46 4.29 4.07 3.88 3.73 3.58 3.46 3.34 3.24 3.14175 A252 5.09 4.83 4.61 4.43 4.24 4.10 3.95 3.84 3.72 4.67 4.43 4.23 4.07 3.90 3.77 3.63 3.53 3.42200 *A142 4.47 4.26 4.07 3.92 3.77 3.65 3.53 3.43 3.33 3.99 3.80 3.64 3.51 3.37 3.26 3.15 3.07 2.98200 A193 4.83 4.60 4.40 4.24 4.07 3.94 3.81 3.70 3.59 4.37 4.17 3.99 3.84 3.69 3.57 3.45 3.36 3.26200 A252 5.20 4.95 4.74 4.56 4.38 4.24 4.10 3.99 3.87 4.76 4.54 4.34 4.18 4.02 3.89 3.76 3.66 3.55250 *A142 4.63 4.43 4.26 4.12 3.98 3.86 3.74 3.65 3.55 4.11 3.94 3.79 3.67 3.54 3.44 3.33 3.25 3.16250 *A193 4.99 4.78 4.60 4.45 4.29 4.16 4.03 3.93 3.82 4.50 4.31 4.15 4.01 3.87 3.76 3.64 3.55 3.45250 A252 5.36 5.14 4.94 4.78 4.61 4.48 4.34 4.23 4.11 4.89 4.69 4.51 4.36 4.21 4.09 3.96 3.86 3.75

Slab Depth (mm)

Min Mesh Size

Fire Rating 2.0 hours – End Span Fire Rating 2.0 hours – Internal SpanTotal Applied Load (kN/m2) Total Applied Load (kN/m2)

4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0Span (m) Span (m)

130 A142 – – – – – – – – – – – – – – – – – –130 A193 – – – – – – – – – – – – – – – – – –130 A252 – – – – – – – – – – – – – – – – – –140 A142 – – – – – – – – – – – – – – – – – –140 A193 – – – – – – – – – – – – – – – – – –140 A252 – – – – – – – – – – – – – – – – – –150 A142 3.36 3.18 3.03 2.91 2.78 2.68 2.58 2.50 2.42 4.05 3.83 3.64 3.49 3.34 3.22 3.10 3.01 2.91150 A193 3.74 3.54 3.36 3.22 3.08 2.98 2.87 2.78 2.69 4.53 4.28 4.07 3.90 3.73 3.60 3.47 3.36 3.25150 A252 4.11 3.89 3.70 3.55 3.39 3.27 3.15 3.05 2.95 5.00 4.73 4.49 4.31 4.12 3.97 3.82 3.71 3.59160 A142 3.48 3.30 3.14 3.02 2.89 2.79 2.69 2.61 2.53 4.24 4.01 3.82 3.67 3.51 3.39 3.27 3.17 3.07160 A193 3.88 3.67 3.50 3.36 3.21 3.10 2.99 2.90 2.81 4.76 4.51 4.29 4.12 3.94 3.80 3.66 3.55 3.44160 A252 4.27 4.05 3.85 3.70 3.54 3.42 3.29 3.19 3.09 5.27 4.99 4.75 4.56 4.36 4.21 4.05 3.93 3.81175 A142 3.52 3.35 3.19 3.07 2.95 2.85 2.75 2.67 2.59 4.34 4.12 3.93 3.78 3.62 3.50 3.38 3.28 3.18175 A193 3.93 3.73 3.56 3.42 3.28 3.17 3.06 2.97 2.88 4.89 4.64 4.43 4.26 4.08 3.94 3.80 3.69 3.58175 A252 4.33 4.11 3.92 3.77 3.62 3.50 3.37 3.27 3.17 5.42 5.15 4.91 4.72 4.52 4.37 4.21 4.09 3.96200 *A142 3.59 3.42 3.27 3.15 3.03 2.94 2.84 2.76 2.68 4.49 4.28 4.10 3.95 3.79 3.67 3.55 3.45 3.35200 A193 4.00 3.81 3.65 3.52 3.38 3.27 3.16 3.07 2.98 5.07 4.83 4.62 4.45 4.27 4.14 4.00 3.89 3.77200 A252 4.41 4.20 4.02 3.87 3.72 3.60 3.48 3.38 3.28 5.63 5.37 5.13 4.94 4.75 4.60 4.44 4.32 4.19250 *A142 3.68 3.53 3.39 3.28 3.17 3.08 2.98 2.91 2.83 4.72 4.52 4.35 4.21 4.06 3.94 3.82 3.72 3.62250 *A193 4.10 3.93 3.78 3.66 3.53 3.43 3.32 3.24 3.15 5.34 5.11 4.92 4.76 4.59 4.46 4.32 4.21 4.09250 A252 4.52 4.33 4.16 4.03 3.89 3.78 3.66 3.57 3.47 5.95 5.70 5.48 5.30 5.11 4.96 4.81 4.69 4.56

Notes:These values are for unpropped spans only. For cases where the deck is propped please use the Multideck Toolkit design software.


Mul

tide

ck 5

0M

ulti

deck

60

Mul

tide

ck 8

0M

ulti

deck

146


Slab Depth (mm)

Min Mesh Size


4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0Span (m) Span (m)

120 A142 3.60 3.60 3.56 3.39 3.22 3.10 2.97 2.87 2.77 – – – – – – – – –120 A193 3.60 3.60 3.60 3.54 3.48 3.35 3.21 3.10 2.99 – – – – – – – – –120 A252 3.60 3.60 3.60 3.60 3.60 3.53 3.45 3.34 3.22 – – – – – – – – –130 A142 3.90 3.90 3.76 3.59 3.41 3.28 3.14 3.04 2.94 3.80 3.56 3.36 3.21 3.05 2.94 2.82 2.73 2.63130 A193 3.90 3.90 3.90 3.80 3.69 3.55 3.41 3.30 3.18 3.90 3.90 3.70 3.53 3.35 3.22 3.09 2.99 2.89130 A252 3.90 3.90 3.90 3.90 3.90 3.79 3.67 3.55 3.42 3.90 3.90 3.90 3.78 3.65 3.51 3.37 3.26 3.14140 A142 4.20 4.12 3.90 3.72 3.54 3.41 3.27 3.17 3.06 3.98 3.74 3.54 3.38 3.21 3.09 2.97 2.88 2.78140 A193 4.20 4.20 4.20 4.03 3.85 3.70 3.55 3.44 3.32 4.20 4.12 3.89 3.72 3.54 3.41 3.27 3.16 3.05140 A252 4.20 4.20 4.20 4.18 4.16 4.00 3.84 3.71 3.58 4.20 4.20 4.20 4.03 3.86 3.71 3.56 3.45 3.33150 A142 4.46 4.20 3.97 3.80 3.62 3.49 3.35 3.24 3.13 4.04 3.80 3.60 3.44 3.28 3.16 3.03 2.94 2.84150 A193 4.50 4.50 4.31 4.12 3.93 3.79 3.63 3.51 3.39 4.45 4.19 3.96 3.79 3.61 3.48 3.34 3.23 3.12150 A252 4.50 4.50 4.50 4.37 4.24 4.08 3.92 3.79 3.66 4.50 4.50 4.33 4.14 3.94 3.80 3.65 3.53 3.41160 A142 4.53 4.26 4.04 3.87 3.69 3.56 3.42 3.31 3.20 4.09 3.85 3.65 3.50 3.34 3.22 3.09 2.99 2.89160 A193 4.80 4.63 4.38 4.19 4.00 3.85 3.70 3.59 3.47 4.51 4.24 4.02 3.85 3.67 3.54 3.40 3.29 3.18160 A252 4.80 4.80 4.73 4.52 4.31 4.15 3.99 3.87 3.74 4.80 4.64 4.39 4.20 4.01 3.86 3.71 3.59 3.47175 *A142 4.62 4.36 4.14 3.97 3.79 3.65 3.51 3.40 3.29 4.16 3.93 3.73 3.57 3.41 3.29 3.17 3.07 2.97175 A193 5.00 4.72 4.48 4.29 4.10 3.95 3.80 3.69 3.57 4.58 4.32 4.10 3.93 3.75 3.62 3.48 3.38 3.27175 A252 5.25 5.09 4.83 4.63 4.42 4.26 4.10 3.97 3.84 5.00 4.72 4.48 4.29 4.10 3.95 3.80 3.69 3.57200 *A142 4.74 4.49 4.28 4.11 3.93 3.80 3.66 3.55 3.44 4.26 4.03 3.84 3.69 3.53 3.41 3.29 3.19 3.09200 A193 5.13 4.86 4.63 4.44 4.25 4.11 3.96 3.84 3.72 4.68 4.43 4.22 4.05 3.88 3.75 3.61 3.50 3.39200 A252 5.53 5.24 4.99 4.79 4.58 4.42 4.26 4.13 4.00 5.11 4.84 4.61 4.42 4.23 4.09 3.94 3.82 3.70250 *A142 4.94 4.71 4.51 4.35 4.18 4.05 3.91 3.80 3.69 4.41 4.21 4.03 3.88 3.73 3.61 3.49 3.40 3.30250 *A193 5.34 5.09 4.87 4.69 4.51 4.37 4.22 4.10 3.98 4.84 4.61 4.42 4.26 4.09 3.96 3.83 3.72 3.61250 A252 5.74 5.47 5.24 5.05 4.85 4.69 4.53 4.41 4.28 5.28 5.03 4.81 4.64 4.46 4.32 4.17 4.05 3.93

Slab Depth (mm)

Min Mesh Size

Fire Rating 2.0 hours – End Span Fire Rating 2.0 hours – Internal SpanTotal Applied Load (kN/m2) Total Applied Load (kN/m2)

4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0Span (m) Span (m)

120 A142 – – – – – – – – – – – – – – – – – –120 A193 – – – – – – – – – – – – – – – – – –120 A252 – – – – – – – – – – – – – – – – – –130 A142 – – – – – – – – – – – – – – – – – –130 A193 – – – – – – – – – – – – – – – – – –130 A252 – – – – – – – – – – – – – – – – – –140 A142 3.60 3.38 3.19 3.05 2.91 2.80 2.69 2.60 2.51 4.20 4.10 3.87 3.70 3.52 3.39 3.25 3.15 3.04140 A193 4.02 3.77 3.56 3.40 3.24 3.12 3.00 2.90 2.80 4.20 4.20 4.20 4.08 3.96 3.81 3.66 3.54 3.42140 A252 4.20 4.16 3.93 3.75 3.57 3.44 3.30 3.19 3.08 4.20 4.20 4.20 4.20 4.20 4.13 4.05 3.92 3.78150 A142 3.71 3.49 3.30 3.16 3.01 2.90 2.79 2.70 2.61 4.50 4.28 4.05 3.87 3.69 3.55 3.41 3.30 3.19150 A193 4.15 3.91 3.70 3.54 3.37 3.25 3.12 3.02 2.92 4.50 4.50 4.50 4.34 4.17 4.01 3.85 3.73 3.60150 A252 4.50 4.31 4.08 3.90 3.72 3.58 3.44 3.33 3.22 4.50 4.50 4.50 4.50 4.50 4.39 4.27 4.13 3.99160 A142 3.75 3.53 3.35 3.21 3.06 2.95 2.83 2.74 2.65 4.64 4.37 4.14 3.96 3.78 3.64 3.50 3.39 3.27160 A193 4.20 3.95 3.75 3.59 3.42 3.30 3.17 3.07 2.97 4.80 4.80 4.68 4.47 4.26 4.11 3.95 3.82 3.69160 A252 4.64 4.36 4.14 3.96 3.77 3.64 3.50 3.39 3.27 4.80 4.80 4.80 4.77 4.74 4.56 4.38 4.24 4.10175 *A142 3.80 3.59 3.41 3.27 3.12 3.01 2.90 2.81 2.72 4.75 4.48 4.26 4.08 3.89 3.75 3.61 3.50 3.39175 A193 4.25 4.01 3.81 3.65 3.49 3.37 3.24 3.14 3.04 5.25 5.07 4.81 4.61 4.40 4.24 4.08 3.96 3.83175 A252 4.70 4.43 4.21 4.03 3.85 3.71 3.57 3.46 3.35 5.25 5.25 5.25 5.08 4.90 4.72 4.54 4.40 4.25200 *A142 3.87 3.67 3.49 3.35 3.21 3.10 2.99 2.90 2.81 4.91 4.65 4.43 4.25 4.07 3.93 3.79 3.68 3.56200 A193 4.33 4.10 3.91 3.75 3.59 3.47 3.34 3.24 3.14 5.56 5.27 5.02 4.82 4.61 4.45 4.29 4.16 4.03200 A252 4.78 4.53 4.31 4.14 3.96 3.83 3.69 3.58 3.47 6.00 5.87 5.59 5.36 5.13 4.95 4.77 4.63 4.48250 *A142 3.99 3.80 3.64 3.51 3.37 3.27 3.16 3.07 2.98 5.17 4.92 4.71 4.54 4.36 4.22 4.08 3.97 3.85250 *A193 4.45 4.24 4.06 3.91 3.76 3.64 3.52 3.42 3.32 5.86 5.58 5.34 5.14 4.94 4.79 4.63 4.50 4.36250 A252 4.91 4.68 4.48 4.32 4.15 4.02 3.88 3.77 3.66 6.55 6.24 5.97 5.75 5.52 5.34 5.16 5.02 4.87




Slab Depth (mm)

Gauge 0.9mm Gauge 1.0mmTotal Applied Load (kN/m2) Total Applied Load (kN/m2)

2.0 4.0 5.0 6.7 8.0 10.0 12.0 2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m) Span (m)

130 3.52 3.16 3.02 2.81 2.68 2.49 2.32 3.58 3.22 3.08 2.87 2.74 2.56 2.40140 3.80 3.43 3.27 3.04 2.86 2.64 2.46 3.85 3.47 3.33 3.09 2.93 2.71 2.52150 4.08 3.67 3.49 3.20 3.00 2.77 2.58 4.13 3.74 3.56 3.29 3.09 2.85 2.65160 4.39 3.91 3.70 3.37 3.18 2.93 2.74 4.43 3.99 3.79 3.46 3.25 3.00 2.81170 4.63 4.09 3.85 3.51 3.31 3.06 2.86 4.68 4.18 3.94 3.60 3.40 3.14 2.93180 4.89 4.26 4.01 3.68 3.47 3.21 3.00 4.96 4.36 4.11 3.75 3.54 3.28 3.07190 5.11 4.43 4.18 3.83 3.62 3.36 3.15 5.21 4.55 4.29 3.93 3.72 3.44 3.22200 5.30 4.61 4.36 4.00 3.79 3.51 3.29 5.40 4.71 4.44 4.08 3.86 3.58 3.36210 5.46 4.77 4.51 4.15 3.93 3.65 3.43 5.56 4.86 4.60 4.23 4.00 3.72 3.50220 5.62 4.93 4.67 4.31 4.08 3.80 3.57 5.72 5.01 4.75 4.38 4.15 3.86 3.63230 5.77 5.08 4.82 4.46 4.23 3.93 3.70 5.87 5.18 4.91 4.54 4.30 4.01 3.77240 5.94 5.25 4.99 4.62 4.39 4.09 3.85 6.03 5.33 5.06 4.68 4.45 4.15 3.90250 6.11 5.42 5.15 4.78 4.54 4.24 4.00 6.18 5.48 5.22 4.83 4.60 4.29 4.04

Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0 2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m) Span (m)

130 3.61 3.25 3.12 2.92 2.79 2.61 2.45 3.66 3.29 3.16 2.97 2.83 2.66 2.51140 3.90 3.53 3.39 3.15 3.00 2.79 2.60 3.94 3.58 3.44 3.22 3.07 2.86 2.67150 4.20 3.82 3.64 3.38 3.19 2.94 2.75 4.23 3.85 3.68 3.43 3.25 3.00 2.80160 4.47 4.04 3.85 3.54 3.33 3.08 2.87 4.51 4.10 3.91 3.62 3.41 3.15 2.94170 4.74 4.27 4.04 3.69 3.48 3.22 3.00 4.79 4.34 4.13 3.78 3.56 3.29 3.08180 5.01 4.46 4.19 3.84 3.62 3.36 3.14 5.06 4.55 4.29 3.93 3.70 3.43 3.21190 5.25 4.61 4.36 4.00 3.77 3.50 3.28 5.32 4.72 4.44 4.08 3.86 3.58 3.35200 5.47 4.78 4.51 4.15 3.93 3.65 3.42 5.55 4.87 4.60 4.23 4.00 3.71 3.48210 5.66 4.94 4.68 4.31 4.08 3.79 3.56 5.76 5.04 4.76 4.39 4.15 3.86 3.62220 5.81 5.10 4.83 4.46 4.22 3.93 3.69 5.90 5.18 4.90 4.53 4.29 3.99 3.75230 5.96 5.25 4.98 4.61 4.37 4.07 3.83 6.04 5.32 5.04 4.66 4.43 4.12 3.87240 6.11 5.40 5.13 4.75 4.51 4.21 3.96 6.18 5.47 5.19 4.81 4.57 4.26 4.00250 6.27 5.56 5.29 4.90 4.66 4.36 4.10 6.33 5.61 5.34 4.96 4.72 4.40 4.15

Notes:These tables are not applicable to slabs where the deck is supplied in single span lengths (use Multideck Design software to determine suitable bottom bar requirements).* This Dramix® Steel Fibre specification was previously referenced 30kg/m3 RC-65/60-BN.



Mul

tide

ck 5

0M

ulti

deck

60

Mul

tide

ck 8

0M

ulti

deck

146


Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0 2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m) Span (m)

140 3.19 2.83 2.68 2.47 2.32 2.14 1.99 3.25 2.87 2.73 2.53 2.38 2.19 2.04150 3.47 3.05 2.89 2.63 2.47 2.28 2.13 3.54 3.11 2.95 2.70 2.54 2.34 2.18160 3.73 3.27 3.07 2.79 2.63 2.43 2.27 3.80 3.33 3.14 2.86 2.70 2.49 2.33170 3.98 3.46 3.25 2.97 2.79 2.58 2.42 4.04 3.52 3.31 3.02 2.85 2.64 2.47180 4.17 3.61 3.40 3.11 2.93 2.72 2.54 4.23 3.68 3.46 3.17 2.99 2.77 2.59190 4.36 3.78 3.56 3.27 3.09 2.86 2.68 4.43 3.84 3.62 3.33 3.15 2.91 2.73200 4.54 3.95 3.73 3.43 3.25 3.01 2.83 4.61 4.01 3.79 3.48 3.29 3.06 2.87210 4.72 4.12 3.90 3.60 3.40 3.17 2.97 4.76 4.16 3.94 3.63 3.43 3.19 3.00220 4.86 4.27 4.04 3.73 3.54 3.29 3.09 4.93 4.33 4.10 3.79 3.59 3.34 3.14230 5.03 4.43 4.20 3.88 3.68 3.43 3.22 5.09 4.48 4.25 3.93 3.73 3.48 3.27240 5.16 4.57 4.33 4.02 3.82 3.56 3.35 5.23 4.62 4.40 4.07 3.86 3.61 3.40250 5.33 4.72 4.50 4.17 3.97 3.70 3.49 5.36 4.75 4.52 4.19 3.99 3.72 3.50

Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0 2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m) Span (m)

140 3.30 2.93 2.78 2.58 2.43 2.24 2.09 3.34 2.97 2.82 2.61 2.48 2.28 2.13150 3.58 3.17 3.00 2.76 2.60 2.40 2.23 3.63 3.22 3.06 2.82 2.65 2.44 2.28160 3.86 3.40 3.21 2.93 2.75 2.54 2.38 3.90 3.44 3.26 2.98 2.80 2.59 2.42170 4.10 3.58 3.37 3.08 2.90 2.68 2.51 4.15 3.65 3.43 3.14 2.96 2.73 2.55180 4.31 3.75 3.53 3.23 3.05 2.83 2.65 4.36 3.81 3.58 3.29 3.10 2.87 2.68190 4.50 3.91 3.69 3.39 3.20 2.97 2.78 4.56 3.97 3.75 3.44 3.25 3.01 2.83200 4.68 4.08 3.85 3.54 3.35 3.11 2.91 4.75 4.13 3.90 3.59 3.40 3.15 2.96210 4.86 4.24 4.01 3.70 3.50 3.25 3.05 4.92 4.29 4.07 3.75 3.55 3.30 3.10220 5.00 4.39 4.15 3.83 3.64 3.39 3.18 5.06 4.44 4.21 3.89 3.68 3.43 3.22230 5.15 4.54 4.31 3.98 3.78 3.52 3.31 5.22 4.60 4.36 4.04 3.83 3.57 3.36240 5.29 4.68 4.44 4.12 3.91 3.65 3.43 5.36 4.74 4.50 4.17 3.96 3.69 3.47250 5.41 4.80 4.57 4.24 4.03 3.76 3.54 5.47 4.86 4.62 4.29 4.08 3.81 3.58




Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0 2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m) Span (m)

130 3.66 3.06 2.85 2.59 2.42 2.23 2.08 4.19 3.49 3.26 2.95 2.77 2.54 2.37140 3.80 3.20 2.99 2.72 2.56 2.35 2.20 4.30 3.61 3.38 3.06 2.88 2.65 2.47150 3.94 3.34 3.13 2.84 2.68 2.48 2.31 4.41 3.74 3.50 3.18 2.99 2.76 2.58160 4.07 3.48 3.26 2.98 2.81 2.59 2.43 4.53 3.86 3.62 3.31 3.11 2.87 2.69170 4.20 3.60 3.39 3.10 2.93 2.71 2.54 4.62 3.96 3.72 3.40 3.21 2.97 2.78180 4.33 3.73 3.52 3.23 3.05 2.83 2.65 4.73 4.08 3.83 3.52 3.32 3.07 2.88190 4.45 3.86 3.64 3.34 3.16 2.94 2.75 4.83 4.18 3.95 3.62 3.42 3.18 2.98200 4.58 3.99 3.77 3.48 3.29 3.06 2.87 4.93 4.29 4.06 3.73 3.53 3.28 3.08210 4.70 4.11 3.89 3.59 3.41 3.16 2.98 5.04 4.40 4.17 3.84 3.64 3.38 3.18220 4.84 4.25 4.03 3.72 3.53 3.29 3.09 5.15 4.52 4.29 3.96 3.76 3.49 3.29230 4.95 4.37 4.14 3.84 3.64 3.40 3.20 5.23 4.61 4.37 4.05 3.84 3.59 3.38240 5.06 4.48 4.26 3.95 3.75 3.50 3.30 5.35 4.73 4.50 4.16 3.96 3.70 3.48250 5.16 4.59 4.37 4.05 3.86 3.61 3.40 5.44 4.84 4.60 4.27 4.06 3.80 3.58

Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0 2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m) Span (m)

130 4.74 3.94 3.67 3.30 3.11 2.86 2.66 4.95 4.11 3.83 3.46 3.24 2.98 2.77140 4.82 4.04 3.77 3.40 3.21 2.95 2.75 5.14 4.31 4.02 3.65 3.43 3.16 2.95150 4.89 4.13 3.87 3.50 3.30 3.04 2.84 5.30 4.48 4.20 3.81 3.59 3.31 3.09160 4.99 4.24 3.98 3.61 3.42 3.15 2.94 5.43 4.62 4.34 3.96 3.73 3.45 3.22170 5.06 4.34 4.08 3.71 3.51 3.25 3.03 5.57 4.77 4.48 4.10 3.87 3.58 3.35180 5.14 4.43 4.17 3.80 3.60 3.33 3.12 5.69 4.90 4.62 4.23 3.99 3.70 3.47190 5.22 4.52 4.26 3.90 3.70 3.43 3.21 5.79 5.02 4.73 4.35 4.12 3.82 3.58200 5.30 4.62 4.36 3.99 3.80 3.53 3.31 5.91 5.15 4.86 4.48 4.23 3.94 3.70210 5.38 4.70 4.45 4.09 3.89 3.61 3.40 6.01 5.26 4.98 4.59 4.34 4.05 3.80220 5.49 4.81 4.56 4.20 3.99 3.72 3.49 6.10 5.37 5.09 4.70 4.45 4.15 3.90230 5.57 4.90 4.66 4.29 4.09 3.81 3.58 6.20 5.47 5.19 4.80 4.56 4.25 4.00240 5.65 5.00 4.75 4.39 4.18 3.90 3.67 6.29 5.57 5.30 4.91 4.66 4.35 4.10250 5.74 5.10 4.84 4.49 4.28 4.00 3.76 6.38 5.67 5.40 5.01 4.77 4.45 4.20




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Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0 2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m) Span (m)

140 3.50 2.95 2.76 2.51 2.36 2.17 2.03 3.67 3.09 2.89 2.63 2.47 2.27 2.12150 3.64 3.09 2.89 2.64 2.48 2.30 2.14 3.79 3.21 3.01 2.74 2.59 2.39 2.23160 3.78 3.23 3.03 2.77 2.61 2.41 2.26 3.93 3.35 3.14 2.88 2.71 2.51 2.35170 3.91 3.36 3.16 2.89 2.73 2.53 2.37 4.05 3.47 3.27 2.99 2.82 2.61 2.45180 4.03 3.48 3.28 3.01 2.84 2.64 2.47 4.17 3.60 3.39 3.12 2.94 2.73 2.56190 4.16 3.61 3.41 3.13 2.96 2.75 2.58 4.29 3.73 3.51 3.23 3.06 2.84 2.66200 4.27 3.73 3.52 3.24 3.07 2.86 2.68 4.40 3.83 3.62 3.34 3.16 2.94 2.76210 4.41 3.86 3.66 3.37 3.20 2.98 2.80 4.52 3.96 3.75 3.46 3.28 3.05 2.87220 4.52 3.97 3.77 3.48 3.31 3.08 2.89 4.64 4.07 3.86 3.57 3.39 3.16 2.97230 4.65 4.10 3.90 3.61 3.42 3.20 3.01 4.76 4.21 3.99 3.70 3.51 3.27 3.08240 4.76 4.21 4.01 3.71 3.53 3.30 3.11 4.87 4.31 4.10 3.80 3.62 3.37 3.18250 4.88 4.34 4.13 3.83 3.65 3.41 3.21 4.99 4.43 4.22 3.92 3.73 3.48 3.29

Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0 2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m) Span (m)

140 3.83 3.22 3.02 2.74 2.57 2.37 2.21 3.85 3.23 3.02 2.74 2.58 2.37 2.22150 3.94 3.34 3.14 2.86 2.69 2.48 2.32 4.06 3.44 3.22 2.93 2.76 2.55 2.38160 4.08 3.48 3.26 2.98 2.81 2.60 2.43 4.23 3.61 3.39 3.09 2.91 2.70 2.52170 4.20 3.61 3.39 3.11 2.93 2.71 2.54 4.38 3.77 3.54 3.24 3.05 2.83 2.65180 4.31 3.72 3.51 3.21 3.04 2.82 2.64 4.51 3.89 3.67 3.37 3.18 2.95 2.77190 4.43 3.84 3.63 3.33 3.15 2.92 2.74 4.63 4.02 3.80 3.48 3.30 3.06 2.87200 4.54 3.95 3.74 3.44 3.26 3.03 2.84 4.75 4.14 3.91 3.61 3.41 3.18 2.98210 4.65 4.07 3.86 3.56 3.37 3.14 2.95 4.87 4.26 4.03 3.73 3.53 3.29 3.09220 4.76 4.19 3.96 3.66 3.47 3.24 3.05 4.97 4.37 4.14 3.83 3.63 3.39 3.19230 4.86 4.29 4.07 3.77 3.58 3.34 3.15 5.09 4.48 4.26 3.95 3.75 3.50 3.29240 4.98 4.42 4.19 3.89 3.70 3.45 3.26 5.20 4.60 4.37 4.05 3.86 3.60 3.40250 5.08 4.52 4.29 3.99 3.80 3.55 3.35 5.29 4.70 4.48 4.16 3.96 3.70 3.49




Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0 2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m) Span (m)

155 3.50 2.98 2.80 2.56 2.41 2.23 2.08 3.61 3.07 2.88 2.63 2.48 2.29 2.14165 3.64 3.12 2.93 2.68 2.53 2.34 2.20 3.74 3.20 3.01 2.75 2.60 2.41 2.25175 3.76 3.23 3.05 2.80 2.64 2.45 2.29 3.87 3.33 3.13 2.88 2.71 2.52 2.36185 3.91 3.38 3.20 2.93 2.77 2.58 2.41 4.00 3.46 3.27 3.00 2.84 2.63 2.47195 4.02 3.50 3.31 3.04 2.88 2.67 2.51 4.12 3.58 3.38 3.11 2.95 2.73 2.57205 4.15 3.63 3.43 3.16 2.99 2.79 2.62 4.24 3.70 3.51 3.23 3.06 2.85 2.68215 4.27 3.74 3.55 3.27 3.11 2.89 2.72 4.36 3.82 3.63 3.34 3.17 2.95 2.78225 4.40 3.88 3.67 3.40 3.23 3.01 2.83 4.48 3.94 3.74 3.46 3.28 3.06 2.88235 4.51 3.99 3.79 3.51 3.34 3.12 2.94 4.59 4.06 3.86 3.58 3.40 3.17 2.99245 4.63 4.10 3.91 3.63 3.45 3.22 3.03 4.71 4.18 3.98 3.69 3.51 3.28 3.09255 4.73 4.21 4.01 3.73 3.55 3.32 3.13 4.81 4.28 4.08 3.79 3.61 3.38 3.19

Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0 2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m) Span (m)

155 3.71 3.16 2.97 2.70 2.55 2.36 2.20 3.79 3.21 3.01 2.73 2.58 2.38 2.23165 3.84 3.30 3.09 2.83 2.67 2.47 2.31 4.01 3.41 3.20 2.92 2.76 2.55 2.38175 3.96 3.41 3.21 2.95 2.78 2.58 2.41 4.16 3.57 3.36 3.08 2.91 2.69 2.52185 4.10 3.55 3.34 3.07 2.91 2.70 2.53 4.32 3.73 3.52 3.23 3.05 2.83 2.65195 4.21 3.66 3.46 3.19 3.02 2.81 2.63 4.45 3.86 3.65 3.35 3.17 2.95 2.77205 4.34 3.79 3.58 3.31 3.13 2.91 2.73 4.55 3.98 3.76 3.46 3.28 3.05 2.87215 4.46 3.91 3.71 3.42 3.25 3.02 2.84 4.67 4.09 3.87 3.58 3.39 3.16 2.97225 4.56 4.02 3.81 3.52 3.34 3.12 2.94 4.77 4.20 3.98 3.68 3.49 3.26 3.06235 4.68 4.14 3.94 3.65 3.46 3.23 3.05 4.87 4.30 4.09 3.79 3.60 3.36 3.16245 4.79 4.25 4.04 3.75 3.57 3.34 3.14 4.99 4.42 4.20 3.90 3.71 3.47 3.27255 4.89 4.36 4.15 3.86 3.67 3.44 3.24 5.10 4.53 4.31 4.01 3.82 3.57 3.37




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Sound Attenuation


Slab Depth (mm)



Treatment


Treatment


Floor (FFT4)


Floor (FFT3)


Screed

120 33 to 37 46 to 50 45 to 49 46 to 50 45 to 49130 34 to 38 47 to 51 46 to 50 47 to 51 46 to 50140 35 to 39 48 to 52 47 to 51 48 to 52 47 to 51150 36 to 40 49 to 53 48 to 52 49 to 53 48 to 52160 37 to 41 50 to 54 49 to 53 50 to 54 49 to 53170 38 to 42 51 to 55 50 to 54 51 to 55 50 to 54175 39 to 43 52 to 56 51 to 55 52 to 56 51 to 55200 41 to 45 54 to 58 53 to 57 54 to 58 53 to 57250 45 to 49 58 to 62 57 to 61 58 to 62 57 to 61

Slab Depth (mm)



Treatment


Treatment


Floor (FFT4)


Floor (FFT3)


Screed

120 to 250 76 to 80 68 to 72 51 to 55 53 to 57 48 to 52

Notes:The tables are based on a minimum concrete density of 2350kgs/m3 and can be used with mesh or Dramix reinforcement.Lightweight concrete may lead to a reduction in acoustic performance of about 2 to 3 dB on the values shown above.Values of DnT,w and Lnw are available from Kingspan Structural Technical Department.The junction details between the walls and floors must be appropriately detailed to ensure that flanking sound is minimised.The values in the table are based on the new (since 2003) measurement index DnT,w+Ctr for airborne sound. The Ctr term is a spectrum adaptation value which is generally negative and adjusts the index to take account of low frequency sounds that often cause problems in residential buildings. Thus the DnT,w +Ctr rating is lower than the DnT,w rating for the same construction.



Multideck 80

Contents




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Introduction

Multideck 80-V2 is designed to incorporate all the advantages of the Multideck 60-V2 but in a deeper profile to provide longer spans up to 5.4m unpropped.

Multideck 80-V2 Floor Decking System The efficient shape of the deck and resulting composite slab make an excellent option for composite beam design. Key benefits include:– Concrete Volume Savings

Due to its unique profile Multideck 80-V2 requires less concrete than other decks to achieve any given slab thickness. Key benefits include:

– Quicker Installation No temporary supports required under most conditions. A wide range of accessories allows for easy installation of ceilings and services.




Product Data

Material Specification – 350N/mm2 Steel Steel strip for Multideck 80-V2 complies with BS EN 10143 and BS EN 10346 with a guaranteed minimum yield strength of 350N/mm2 and a minimum total coating mass (including both sides) of 275g/m2.


Reinforcement Reinforcement of the slab to control cracking in the concrete at all intermediate supports is required in BS 5950: Part 4 1994. Steel reinforcement for crack control or fire engineering purposes in accordance with British Standards: Hot rolled bars – BS 4449; Mesh reinforcement – BS 4483. A reinforced solution using Dramix® Steel Fibres from Bekaert is available, see pages 118 to 121 for details.


Concrete Volumes and Specification Load / span tables are based on Grade C25/30 concrete, having a design strength of 30N/mm2.




Embossments Raised diagonal embossments in opposite directions on each face of the webs of the decking provide the mechanical connection between the steel and the hardened concrete.

References Engineers are advised to consult SCI / MCRMA Technical Paper 13 ‘Composite Slabs and Beams using Steel Decking: Best Practice for Design and Construction’.

Gauge: 1.0, 1.1 and 1.2mm Maximum length: 12 metres

900 cover width

131

53 nominal

300

51 102 198 50

2266˚26

gauge9

80.5


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(mm)


(cm4/m)

Steel Area (mm2/m)


(kg/m2) (kN/m2) Sagging Hogging1.00 11.49 0.113 42.50 mm 171.3 1413.00 12.62 9.941.10 12.64 0.124 43.10 mm 190.6 1560.00 14.39 11.331.20 13.83 0.136 45.00 mm 208.6 1705.33 16.42 12.73


Slab Depth (mm)



Wet Dry Wet Dry130 0.082 1.984 1.944 1.577 1.496140 0.092 2.220 2.174 1.764 1.672150 0.102 2.455 2.405 1.950 1.849160 0.112 2.691 2.635 2.136 2.026175 0.127 3.044 2.981 2.416 2.290200 0.152 3.633 3.557 2.882 2.732250 0.202 4.810 4.710 3.814 3.615




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Load / Span Tables

Load / Span Tables When using load tables for Multideck 80-V2 please take into consideration the following notes:

1 The table shows the maximum span in meters of the Multideck product for the applied loads and slab depths shown. Values are shown for each gauge where the deck is single span or double spans, plus values for propped spans during construction.


3 The span values are based on the use of a minimum 100mm bearing support. Where the bearing exceeds 100mm the span capacity can be increased. See example below.

4 Deck must lie flat on all supports beams. Point only contact will affect the design loading.

5 The self weight of the slab has been taken in to account in the table and should not be included in the applied loading.

6 All tabulated span capacities include applied construction stage load of 1.5kN/m2 for spans of 3.0m or larger. For spans less than 3.0m the construction load is 4.5/span(m) kN/m2.

7 The composite slab should meet the requirements of BS5950 Part 4 1994 with regard to their composite behaviour under normal loading.

8 The concrete grade is a minimum of C25/30 with a minimum ultimate strength is of 30N/mm2.

9 Minimum reinforcement mesh sizes shown meet or exceed 0.1% gross cross sectional area of the concrete at the supports. Minimum reinforcement should be increased where:-a) The slab is propped during construction.b) It is required to control the size of cracking in the concrete

i.e. where a brittle finishes is applied to the slab.c) There are moving loads.

Mesh reinforcement should be placed near the upper edge of the concrete slab in a zone of 15mm to 40mm from the top surface. Concrete cover to reinforcement should be increased where slab exposure dictates.

10 Where in the table the span value is shown in red this shows the maximum permissible span where there is a minimum of one stud per trough.

11 Total applied load referred to in the table is a working load derived from the sum of the loads supported by the composite slab (live load, finishes, ceilings, services, partitions). Loads shown are based on Ultimate capacity / 1.6. The slab self weight has already been taken in to account do not include in applied loads.

12 Deflection under construction loading (wet concrete etc) has been limited to that stipulated in BS5950 Part 4 1994. At the composite stage the suggested maximum ratio of slab span to slab depth are 35 for NWC and 30 for LWC to control deflection.

13 For the propped during construction cases the temporary supports should remain in place until the concrete has achieved 75% of it 28 day cube strength often available after 7 days.

14 Where more than one prop is provided they should be equally spaced across the span of the Multideck.

15 Where ★ appears the addition of props gives no further spanning benefit in these cases.


Support widths greater than 100mm?The span capacities shown on the following pages can be increased by the difference between the actual support widths and 100mm.

The deck span (m) used in the table is based on the (Support c/c – support bearing) + the deck depth. All values in metres.

Example Support widths 140mm and 200mm. Span values can be increased by (140 + 200)/2 – 100 = 70mm.

MD80-V2 1.2mm double span deck (no props). 150mm thick slab – normal weight concrete.

Construction stage span: 4.0kN/m2 load column = 4810mm. With support widths of 140 and 200 the increased span capacity is 4000 + 70 = 4070mm.

Support c/c

100mm minimum

100mm minimum


Normal Weight Concrete Unpropped Construction (Steel – 350N/mm2)


Slab Depth(mm)

Min Mesh Size

Gauge = 1.0mmTotal Applied Load (kN/m2) SLS

4.0 6.0 8.0 10.0 12.0 14.0Span (m)*

130 A142 4.03 3.90 3.70 3.28 2.98 2.75140 A142 3.93 3.93 3.92 3.48 3.16 2.91

3.93 3.86 3.51 3.24150 A142 3.84 3.84 3.84 3.66 3.32 3.06

3.84 3.70 3.41160 A142 3.75 3.75 3.75 3.75 3.49 3.21

3.75 3.58175 A142 3.65 3.65 3.65 3.65 3.65 3.42

3.65200 A193 3.45 3.45 3.45 3.45 3.45 3.45250 A252 3.16 3.16 3.16 3.16 3.16 3.16130 A142 4.53 4.31 3.70 3.28 2.98 2.75 140 A142 4.39 4.39 3.92 3.48 3.16 2.91

4.29 3.86 3.51 3.24150 A142 4.26 4.26 4.13 3.66 3.32 3.06

4.26 4.08 3.70 3.41160 A142 4.15 4.15 4.15 3.84 3.49 3.21

4.15 3.89 3.58175 A142 3.99 3.99 3.99 3.99 3.72 3.42

3.99 3.82200 A193 3.76 3.76 3.76 3.76 3.76 3.75

3.76250 A252 3.40 3.40 3.40 3.40 3.40 3.40


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0 4.0 6.0 8.0 10.0 12.0 14.0Span (m)* Span (m)*

130 A142 4.13 3.93 3.86 3.43 3.11 2.87 4.22 3.95 3.90 3.53 3.21 2.96140 A142 4.03 4.03 4.03 3.63 3.30 3.04 4.11 4.11 4.11 3.75 3.40 3.14

3.99 3.63 3.34 4.08 3.71 3.42150 A142 3.93 3.93 3.93 3.83 3.47 3.20 4.02 4.02 4.02 3.95 3.59 3.31

3.93 3.83 3.53 4.02 3.92 3.61160 A142 3.85 3.85 3.85 3.85 3.64 3.36 3.93 3.93 3.93 3.93 3.77 3.47

3.85 3.70 3.93 3.80175 A142 3.74 3.74 3.74 3.74 3.74 3.58 3.82 3.82 3.82 3.82 3.82 3.70

3.74 3.82200 A193 3.58 3.58 3.58 3.58 3.58 3.58 3.66 3.66 3.66 3.66 3.66 3.66250 A252 3.27 3.27 3.27 3.27 3.27 3.27 3.37 3.37 3.37 3.37 3.37 3.37130 A142 4.55 4.50 3.86 3.43 3.11 2.87 4.55 4.55 3.98 3.53 3.21 2.96140 A142 4.68 4.68 4.09 3.63 3.30 3.04 4.90 4.90 4.22 3.75 3.40 3.14

4.44 3.99 3.63 3.34 4.53 4.08 3.71 3.42150 A142 4.54 4.54 4.31 3.83 3.47 3.20 4.81 4.81 4.45 3.95 3.59 3.31

4.54 4.21 3.83 3.53 4.73 4.31 3.92 3.61160 A142 4.42 4.42 4.42 4.01 3.64 3.36 4.68 4.68 4.67 4.15 3.77 3.47

4.42 4.02 3.70 4.68 4.53 4.12 3.80175 A142 4.25 4.25 4.25 4.25 3.88 3.58 4.50 4.50 4.50 4.43 4.02 3.70

4.25 3.95 4.50 4.40 4.06200 A193 4.01 4.01 4.01 4.01 4.01 3.92 4.24 4.24 4.24 4.24 4.24 4.06

4.01 4.24250 A252 3.62 3.62 3.62 3.62 3.62 3.62 3.84 3.84 3.84 3.84 3.84 3.84


Load / Span Tables


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Normal Weight Concrete Propped Construction (Steel – 350N/mm2)


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0Span (m)*

130 A142 ★ ★ ★ ★ ★ ★

140 A142 4.56 ★ ★ ★ ★ ★

4.90150 A142 4.73 ★ ★ ★ ★ ★

5.25 4.52160 A142 4.87 4.21 ★ ★ ★ ★

5.42 4.69 4.19175 A142 5.08 4.41 ★ ★ ★ ★

5.65 4.91 4.40 4.02200 A193 5.36 4.70 4.22 3.87 ★ ★

5.98 5.24 4.72 4.33 4.02250 A252 5.81 5.16 4.68 4.31 4.02 3.78

6.49 5.77 5.24 4.83 4.51 4.24200 A193 ★ ★ ★ ★ ★ ★

250 A252 ★ ★ ★ ★ ★ ★


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0 4.0 6.0 8.0 10.0 12.0 14.0Span (m)* Span (m)*

130 A142 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

140 A142 4.76 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

4.90150 A142 4.93 ★ ★ ★ ★ ★ 5.08 ★ ★ ★ ★ ★

5.25 4.67 5.25160 A142 5.08 ★ ★ ★ ★ ★ 5.24 ★ ★ ★ ★ ★

5.59 4.84 5.60 4.95175 A142 5.29 4.60 ★ ★ ★ ★ 5.47 4.75 ★ ★ ★ ★

5.84 5.08 4.55 5.97 5.20 4.66200 A193 5.59 4.90 4.41 4.04 ★ ★ 5.78 5.07 4.57 ★ ★ ★

6.18 5.42 4.88 4.47 4.15 6.33 5.56 5.01 4.59 4.26250 A252 6.06 5.38 4.89 4.51 4.20 3.95 6.27 5.58 5.07 4.67 4.35 4.09

6.71 5.96 5.42 5.00 4.66 4.36 6.89 6.13 5.57 5.14 4.79 4.51200 A193 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

250 A252 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Notes: Total applied load referred to in the above table is a working load based on combinations of live loads, finishes, ceilings, services and partitions (excluding slab self weight).Figures in red are maximum permissible spans in situations where there is one stud per trough.Permanent Support Temporary Support *See diagram on page 57.


Lightweight Concrete Unpropped Construction (Steel – 350N/mm2)


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0Span (m)*

130 A142 4.19 3.66 3.32 3.25 2.98 2.75140 A142 4.14 3.90 3.55 3.48 3.16 2.91

3.50 3.48 3.21150 A142 4.05 4.05 3.77 3.66 3.32 3.06

3.75 3.67 3.38160 A142 3.96 3.96 3.96 3.84 3.49 3.21

3.96 3.85 3.55175 A142 3.85 3.85 3.85 3.85 3.72 3.42

3.85 3.79200 A193 3.69 3.69 3.69 3.69 3.69 3.69250 A252 3.40 3.40 3.40 3.40 3.40 3.40130 A142 4.19 3.90 3.70 3.28 2.98 2.75140 A142 4.47 4.20 3.92 3.48 3.16 2.91

4.20 3.83 3.48 3.21150 A142 4.55 4.50 4.13 3.66 3.32 3.06

4.50 4.04 3.57 3.38160 A142 4.44 4.44 4.33 3.84 3.49 3.21

4.44 4.24 3.85 3.55175 A142 4.28 4.28 4.28 4.10 3.72 3.42

4.28 4.11 3.79200 A193 4.06 4.06 4.06 4.06 4.06 3.75

4.06250 A252 3.70 3.70 3.70 3.70 3.70 3.70


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0 4.0 6.0 8.0 10.0 12.0 14.0Span (m)* Span (m)*

130 A142 4.25 3.71 3.37 3.25 3.11 2.87 4.28 3.73 3.39 3.25 3.21 2.96140 A142 4.25 3.96 3.60 3.50 3.30 3.04 4.34 3.98 3.62 3.50 3.40 3.14

3.50 3.32 3.50 3.39150 A142 4.15 4.15 3.82 3.75 3.47 3.20 4.24 4.23 3.85 3.75 3.59 3.31

3.75 3.50 3.75 3.58160 A142 4.06 4.06 4.06 4.00 3.64 3.36 4.15 4.15 4.08 4.00 3.77 3.47

3.96 3.67 4.00 3.76175 A142 3.95 3.95 3.95 3.95 3.88 3.58 4.03 4.03 4.03 4.03 4.02 3.70

3.95 3.92 4.03 4.02200 A193 3.79 3.79 3.79 3.79 3.79 3.79 3.87 3.87 3.87 3.87 3.87 3.87250 A252 3.52 3.52 3.52 3.52 3.52 3.52 3.62 3.62 3.62 3.62 3.62 3.62130 A142 4.25 3.90 3.86 3.43 3.11 2.87 4.28 3.90 3.90 3.53 3.21 2.96140 A142 4.53 4.20 4.09 3.63 3.30 3.04 4.56 4.20 4.20 3.75 3.40 3.14

4.20 3.96 3.59 3.32 4.05 3.68 3.39150 A142 4.82 4.50 4.31 3.83 3.47 3.20 4.85 4.50 4.45 3.95 3.59 3.31

4.50 4.18 3.79 3.50 4.50 4.28 3.89 3.58160 A142 4.73 4.73 4.52 4.01 3.64 3.36 5.00 4.80 4.67 4.15 3.77 3.47

4.73 4.38 3.98 3.67 4.80 4.49 4.08 3.76175 A142 4.56 4.56 4.56 4.28 3.88 3.58 4.83 4.83 4.83 4.43 4.02 3.70

4.56 4.25 3.92 4.81 4.36 4.02200 A193 4.32 4.32 4.32 4.32 4.26 3.92 4.58 4.58 4.58 4.58 4.41 4.06

4.32 4.29 4.58 4.39250 A252 3.94 3.94 3.94 3.94 3.94 3.94 4.17 4.17 4.17 4.17 4.17 4.17


Load / Span Tables


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Lightweight Concrete Propped Construction (Steel – 350N/mm2)


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0Span (m)*

130 A142 ★ ★ ★ ★ ★ ★

140 A142 ★ ★ ★ ★ ★ ★

150 A142 4.65 ★ ★ ★ ★ ★

160 A142 4.89 ★ ★ ★ ★ ★

4.80175 A142 5.25 4.58 ★ ★ ★ ★

5.06 4.50200 A193 5.68 4.91 4.38 ★ ★ ★

6.00 5.43 4.84 4.41250 A252 6.22 5.44 4.89 4.48 4.15 3.76

6.88 6.02 5.42 4.91 4.27 3.77200 A193 ★ ★ ★ ★ ★ ★

250 A252 ★ ★ ★ ★ ★ ★


Slab Depth(mm)

Min Mesh Size


4.0 6.0 8.0 10.0 12.0 14.0 4.0 6.0 8.0 10.0 12.0 14.0Span (m)* Span (m)*

130 A142 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

140 A142 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

150 A142 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

160 A142 4.95 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

4.80175 A142 5.31 4.78 ★ ★ ★ ★ 5.33 4.94 ★ ★ ★ ★

5.23 4.65 5.25200 A193 5.92 5.12 4.57 ★ ★ ★ 6.00 5.30 4.73 ★ ★ ★

6.00 5.61 5.01 4.57 5.76 5.14 4.69 250 A252 6.49 5.68 5.11 4.68 4.34 ★ 6.71 5.88 5.29 4.85 4.50 ★

7.11 6.23 5.61 5.06 4.40 7.30 6.40 5.77 5.19 4.51200 A193 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

250 A252 ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Notes: Total applied load referred to in the above table is a working load based on combinations of live loads, finishes, ceilings, services and partitions (excluding slab self weight).Figures in red are maximum permissible spans in situations where there is one stud per trough.Permanent Support Temporary Support *See diagram on page 57.


Fire Resistance

Fire Performance – Mesh1 The fire resistance tables for Multideck 80-V2 on the

following pages are based upon fire test data from full scale tests performed at the Warrington Fire Research Centre UK, April 1991.

2 All stated slab depths comply with the minimum fire insulation criteria of BS 476: Part 20 1987.

3 The composite slab is assumed to be continuous over one or more intermediate supports. i.e. minimum double span.

4 The fire resistance load tables are for continuous spans only with no propping. For 2 hour fire rating or propped and single span conditions use the Kingspan Toolkit Software or contact Kingspan Technical Services.

5 Minimum laps should be 300mm for A142 mesh and 400mm for A193 and A252 mesh.

6 The mesh should be placed between 15 and 40mm from the upper surface of the slab (this range caters for lap areas).

7 The tables are based upon Grade 30 concrete, reinforcement having a yield strength of 460N/mm2.

8 The tables must be read in conjunction with load / span tables for Multideck 80-V2 to verify the structural integrity of the composite slab.

9 The values in all the tables are relevant to unpropped construction.

10 The tables take into account the reduced partial factor of 0.8 as permitted in BS 5950: Part 8 for non-permanent imposed loads. The tables are presented in terms of total specified imposed load (non-permanent and permanent). It is assumed that the permanent imposed loads for partitions, finishes, ceilings and services are equivalent to 1.7kN/m2 in all cases. The tables are therefore appropriate for office type applications.

For other applications where the imposed loads are almost entirely permanent the total load should be adjusted accordingly before reading from the tables, eg:– 150mm normal weight concrete plantroom slab and

A142 mesh.– 7.5kN/m2 live load.– 1.2kN/m2 50mm screed finish 0.5kN/m2 ceilings

and services.– 1 hour fire rating.

Multideck 80-V2 profile Total applied load = 1.2 + 0.5 + 7.5/0.8 = 11.075kN/m2From table opposite maximum span = 3.16m.11 The * denotes that the mesh provided, although satisfying

the fire resistance requirement, does not comply with the minimum anti-crack reinforcement requirement of BS 5950: Part 4.


12 For load / span conditions beyond the scope of these tables the Kingspan Toolkit Software should be used which includes the Fire Engineering Method as detailed in the SCI Publication 056.

See following pages for Multideck 80-V2 Fire Resistance Tables.



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Normal Weight Concrete

Slab Depth (mm)

Min Mesh Size


4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0Span (m) Span (m)

140 A142 4.09 3.85 3.65 3.48 3.34 3.21 3.09 2.99 2.90 – – – – – – – – –140 A193 4.37 4.12 3.91 3.73 3.57 3.44 3.31 3.20 3.10 – – – – – – – – –140 A252 4.67 4.40 4.17 3.97 3.81 3.67 3.53 3.41 3.30 – – – – – – – – –150 A142 4.29 4.05 3.85 3.67 3.52 3.39 3.27 3.17 3.07 3.60 3.40 3.23 3.08 2.96 2.85 2.75 2.66 2.58150 A193 4.60 4.35 4.13 3.94 3.78 3.64 3.51 3.40 3.29 3.90 3.68 3.50 3.34 3.21 3.09 2.98 2.88 2.79150 A252 4.93 4.65 4.42 4.21 4.04 3.89 3.75 3.63 3.52 4.21 3.97 3.77 3.60 3.46 3.33 3.21 3.11 3.01160 A142 4.45 4.21 4.00 3.83 3.67 3.54 3.42 3.31 3.21 3.79 3.58 3.41 3.25 3.13 3.02 2.91 2.82 2.74160 A193 4.79 4.53 4.31 4.11 3.95 3.81 3.67 3.56 3.45 4.11 3.89 3.70 3.54 3.40 3.28 3.16 3.06 2.97160 A252 5.14 4.86 4.62 4.42 4.24 4.09 3.94 3.82 3.70 4.45 4.21 4.00 3.83 3.67 3.54 3.42 3.31 3.21175 A142 4.54 4.31 4.11 3.94 3.78 3.65 3.52 3.42 3.32 3.99 3.79 3.61 3.46 3.32 3.21 3.10 3.01 2.92175 A193 4.89 4.64 4.43 4.23 4.07 3.93 3.79 3.68 3.57 4.35 4.13 3.94 3.77 3.62 3.50 3.38 3.28 3.18175 A252 5.25 4.98 4.74 4.52 4.36 4.21 4.06 3.94 3.82 4.71 4.47 4.26 4.08 3.92 3.78 3.65 3.54 3.43200 *A142 4.67 4.45 4.25 4.08 3.93 3.80 3.68 3.57 3.47 4.12 3.93 3.76 3.60 3.48 3.36 3.25 3.16 3.07200 A193 5.02 4.78 4.57 4.38 4.23 4.09 3.95 3.83 3.72 4.50 4.28 4.10 3.93 3.79 3.66 3.54 3.44 3.34200 A252 5.38 5.12 4.89 4.69 4.52 4.37 4.23 4.11 3.99 4.88 4.64 4.44 4.26 4.11 3.97 3.84 3.73 3.62250 *A142 4.86 4.65 4.47 4.31 4.17 4.04 3.92 3.82 3.72 4.27 4.09 3.93 3.79 3.67 3.56 3.45 3.36 3.27250 *A193 5.21 4.99 4.80 4.62 4.47 4.33 4.20 4.09 3.98 4.65 4.45 4.28 4.12 3.99 3.87 3.75 3.65 3.56250 A252 5.57 5.33 5.13 4.94 4.78 4.63 4.49 4.37 4.26 5.03 4.82 4.64 4.47 4.32 4.19 4.06 3.95 3.85

Lightweight Concrete

Slab Depth (mm)

Min Mesh Size

Fire Rating 1.0 hours Fire Rating 1.5 hoursTotal Applied Load (kN/m2) Total Applied Load (kN/m2)

4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0Span (m) Span (m)

130 LWC A142 3.90 3.83 3.61 3.43 3.27 3.14 3.02 2.92 2.82 – – – – – – – – –130 LWC A193 3.90 3.90 3.87 3.67 3.50 3.36 3.23 3.12 3.01 – – – – – – – – –130 LWC A252 3.90 3.90 3.90 3.87 3.74 3.59 3.44 3.32 3.21 – – – – – – – – –140 LWC A142 4.20 4.09 3.86 3.66 3.50 3.36 3.23 3.12 3.02 3.73 3.49 3.30 3.14 3.00 2.88 2.77 2.68 2.59140 LWC A193 4.20 4.20 4.15 3.94 3.77 3.62 3.48 3.36 3.25 4.06 3.80 3.59 3.42 3.26 3.13 3.01 2.91 2.81140 LWC A252 4.20 4.20 4.20 4.17 4.03 3.87 3.72 3.59 3.47 4.20 4.11 3.88 3.68 3.52 3.38 3.25 3.14 3.04150 LWC A142 4.50 4.29 4.06 3.86 3.69 3.55 3.41 3.30 3.19 3.97 3.73 3.53 3.36 3.21 3.09 2.97 2.87 2.78150 LWC A193 4.50 4.50 4.37 4.16 3.97 3.82 3.67 3.55 3.43 4.34 4.07 3.85 3.66 3.50 3.37 3.24 3.13 3.03150 LWC A252 4.50 4.50 4.50 4.44 4.27 4.10 3.94 3.81 3.68 4.50 4.42 4.18 3.97 3.80 3.65 3.51 3.39 3.28160 LWC A142 4.71 4.43 4.20 4.00 3.83 3.68 3.54 3.42 3.31 4.17 3.92 3.72 3.54 3.39 3.26 3.14 3.04 2.94160 LWC A193 4.80 4.79 4.54 4.32 4.13 3.98 3.83 3.70 3.58 4.57 4.30 4.07 3.87 3.71 3.57 3.43 3.32 3.21160 LWC A252 4.80 4.80 4.80 4.64 4.44 4.27 4.11 3.97 3.84 4.80 4.67 4.42 4.21 4.03 3.88 3.73 3.61 3.49175 LWC *A142 4.81 4.53 4.30 4.11 3.93 3.79 3.65 3.54 3.42 4.30 4.05 3.85 3.67 3.52 3.39 3.26 3.16 3.06175 LWC A193 5.16 4.90 4.65 4.43 4.25 4.09 3.94 3.81 3.69 4.71 4.44 4.22 4.02 3.86 3.72 3.58 3.46 3.35175 LWC A252 5.25 5.20 4.99 4.76 4.56 4.39 4.23 4.09 3.96 5.13 4.84 4.60 4.38 4.20 4.04 3.89 3.77 3.65200 LWC *A142 4.96 4.70 4.47 4.27 4.11 3.96 3.82 3.70 3.59 4.41 4.18 3.98 3.80 3.65 3.52 3.40 3.29 3.19200 LWC A193 5.35 5.06 4.82 4.61 4.42 4.26 4.11 3.98 3.86 4.83 4.57 4.35 4.16 4.00 3.86 3.72 3.60 3.49200 LWC A252 5.74 5.43 5.17 4.94 4.74 4.57 4.41 4.27 4.14 5.26 4.98 4.74 4.53 4.35 4.19 4.04 3.92 3.80250 LWC *A142 5.20 4.95 4.74 4.54 4.38 4.24 4.10 3.98 3.86 4.59 4.38 4.19 4.02 3.87 3.74 3.62 3.52 3.42250 LWC *A193 5.59 5.32 5.09 4.88 4.71 4.55 4.40 4.27 4.15 5.02 4.78 4.57 4.39 4.23 4.09 3.95 3.84 3.73250 LWC A252 5.98 5.69 5.45 5.23 5.04 4.87 4.71 4.57 4.44 5.45 5.19 4.96 4.76 4.59 4.44 4.29 4.17 4.05




Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m)

150 4.96 4.16 3.88 3.52 3.31 3.05 2.84160 5.09 4.30 4.02 3.66 3.44 3.17 2.96170 5.20 4.42 4.15 3.78 3.56 3.29 3.07180 5.31 4.55 4.27 3.91 3.68 3.41 3.19190 5.41 4.66 4.39 4.02 3.80 3.52 3.29200 5.52 4.77 4.50 4.13 3.90 3.62 3.39210 5.62 4.88 4.61 4.24 4.02 3.73 3.49220 5.72 5.00 4.73 4.36 4.13 3.84 3.60230 5.82 5.11 4.84 4.47 4.23 3.94 3.70240 5.92 5.21 4.95 4.57 4.34 4.05 3.80250 6.01 5.31 5.05 4.68 4.45 4.15 3.91

Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0 2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m) Span (m)

150 5.14 4.31 4.03 3.66 3.43 3.16 2.95 5.31 4.45 4.16 3.77 3.55 3.27 3.04160 5.26 4.45 4.16 3.78 3.55 3.28 3.06 5.43 4.59 4.30 3.91 3.67 3.39 3.16170 5.38 4.57 4.29 3.91 3.68 3.40 3.17 5.55 4.73 4.43 4.04 3.80 3.52 3.28180 5.49 4.70 4.42 4.04 3.80 3.52 3.29 5.66 4.85 4.55 4.16 3.93 3.63 3.40190 5.59 4.81 4.53 4.15 3.92 3.63 3.40 5.77 4.97 4.67 4.28 4.04 3.74 3.50200 5.70 4.93 4.65 4.27 4.03 3.74 3.51 5.87 5.08 4.79 4.40 4.16 3.85 3.61210 5.80 5.04 4.76 4.38 4.14 3.84 3.61 5.97 5.19 4.90 4.51 4.27 3.96 3.71220 5.90 5.15 4.88 4.49 4.25 3.95 3.71 6.07 5.30 5.02 4.63 4.38 4.07 3.82230 5.99 5.26 4.98 4.60 4.36 4.06 3.81 6.17 5.41 5.13 4.73 4.49 4.18 3.93240 6.09 5.37 5.09 4.71 4.47 4.16 3.91 6.26 5.52 5.23 4.84 4.59 4.28 4.02250 6.18 5.47 5.20 4.81 4.57 4.27 4.02 6.34 5.61 5.33 4.94 4.70 4.38 4.13




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Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m)

160 3.95 3.34 3.13 2.84 2.68 2.47 2.31170 4.07 3.47 3.25 2.97 2.80 2.59 2.41180 4.20 3.59 3.38 3.09 2.92 2.70 2.53190 4.32 3.73 3.51 3.21 3.04 2.81 2.63200 4.45 3.85 3.63 3.34 3.16 2.93 2.75210 4.55 3.96 3.74 3.45 3.27 3.03 2.84220 4.67 4.09 3.87 3.56 3.38 3.14 2.95230 4.77 4.19 3.97 3.66 3.48 3.23 3.05240 4.88 4.30 4.08 3.77 3.59 3.34 3.15250 4.98 4.41 4.19 3.88 3.69 3.45 3.24

Slab Depth (mm)


2.0 4.0 5.0 6.7 8.0 10.0 12.0 2.0 4.0 5.0 6.7 8.0 10.0 12.0Span (m) Span (m)

160 4.08 3.45 3.23 2.94 2.77 2.55 2.38 4.20 3.55 3.32 3.02 2.84 2.63 2.45170 4.19 3.57 3.35 3.05 2.88 2.66 2.48 4.32 3.68 3.45 3.15 2.97 2.74 2.56180 4.32 3.70 3.48 3.18 3.00 2.78 2.60 4.45 3.81 3.58 3.27 3.09 2.86 2.68190 4.43 3.81 3.59 3.29 3.11 2.88 2.70 4.55 3.93 3.70 3.39 3.20 2.97 2.78200 4.56 3.95 3.73 3.42 3.23 3.01 2.82 4.67 4.05 3.82 3.51 3.31 3.08 2.88210 4.66 4.06 3.84 3.53 3.34 3.11 2.91 4.77 4.16 3.93 3.62 3.42 3.18 2.98220 4.78 4.18 3.95 3.65 3.45 3.22 3.02 4.88 4.27 4.04 3.72 3.52 3.28 3.08230 4.89 4.29 4.07 3.76 3.56 3.32 3.12 4.99 4.38 4.16 3.84 3.64 3.39 3.19240 4.99 4.40 4.18 3.87 3.67 3.42 3.22 5.09 4.49 4.26 3.95 3.74 3.49 3.28250 5.09 4.50 4.28 3.97 3.77 3.52 3.31 5.19 4.59 4.37 4.05 3.84 3.59 3.38



Sound Attenuation


Slab Depth (mm)



Treatment


Treatment


Floor (FFT4)


Floor (FFT3)


Screed

130 33 to 37 45 to 49 44 to 48 46 to 50 45 to 49140 34 to 38 46 to 50 45 to 49 47 to 51 46 to 50150 35 to 39 47 to 51 46 to 50 48 to 52 47 to 51160 36 to 40 48 to 52 47 to 51 49 to 53 48 to 52175 38 to 42 50 to 54 49 to 53 51 to 55 50 to 54200 40 to 44 52 to 56 51 to 55 53 to 57 52 to 56250 44 to 48 56 to 60 55 to 59 57 to 61 56 to 60

Slab Depth (mm)



Treatment


Treatment


Floor (FFT4)


Floor (FFT3)


Screed

120 to 250 76 to 80 68 to 72 51 to 55 52 to 56 48 to 52

Notes:The tables are based on a minimum concrete density of 2350kgs/m3 and can be used with mesh or Dramix reinforcement.Lightweight concrete may lead to a reduction in acoustic performance of about 2 to 3 dB on the values shown above.Values of DnT,w and Lnw are available from Kingspan Structural Technical Department.The junction details between the walls and floors must be appropriately detailed to ensure that flanking sound is minimised.The values in the table are based on the new (since 2003) measurement index DnT,w+Ctr for airborne sound. The Ctr term is a spectrum adaptation value which is generally negative and adjusts the index to take account of low frequency sounds that often cause problems in residential buildings. Thus the DnT,w +Ctr rating is lower than the DnT,w rating for the same construction.


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Multideck 146

Contents




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Introduction

Multideck 146 has been engineered to optimise performance of the steel and concrete. No other trapezoidal profile can span as far as Multideck 146. It supports normal weight concrete without the need for props, providing new opportunities for efficiencies in construction.

Multideck 146 should be considered for projects with spanning requirements of 4.0m and above.

Multideck 146 Floor Decking System The deck can be supported on the top flange of a beam or partnered with ultra shallow fabricated beams to produce a truly shallow floor construction of 215mm depth. Key benefits include:– Prefixed Studs

Multideck 146 is a single spanning deck so it is ideal for use with beams that have the shear studs attached in the fabrication shop avoiding, or vastly reducing, the need to through deck stud weld on site. While Multideck 146 is generally used with 19mm diameter shear studs it can be equally used with other types of shear attachments as long as the deck is provided with a minimum bearing of 50mm. Multideck 146 can be through deck stud welded on site without difficulty.

– Concrete Volume Savings Multideck 146 composite steel deck is optimised to minimise the concrete volumes on longer spans providing significant savings in comparison to traditional trapezoidal steel decks used free spanning or propped.

Multideck 146 requires 31% less concrete than the next best spanning 80mm trapezoidal deck of the equivalent slab depth.

The saving in concrete translates into a saving in weight that the structure must support, resulting in economies in the supporting structure and foundations.



– Greater Design Efficiency Multideck 146 enhances the performance of the Multideck family of composite steel decks providing efficient spanning capacities to beyond 6.0m. There is a Multideck profile to suit each and every requirement.

– Quicker Installation Multideck 146 deck is 600mm wide and with no need for temporary props, even on spans of 6.0m, means this deck is quick to install.

Reduced concrete volumes means quicker laying times and fewer concrete deliveries to site.


Product Data

Material Specification – 350N/mm2 Steel Steel strip used in the manufacture of Multideck 146 complies with BS EN 10143 and BS EN 10346 with a guaranteed minimum yield strength of 350N/mm2 and a minimum total (total both sides) coating mass of 275 gram/m2.


Reinforcement Reinforcement of the concrete slab to control cracking at all supports is required in accordance with BS EN 5950 Part 4: 1994. Steel reinforcement for crack control or fire performance engineering should be in accordance with British Standards. Hot rolled bars BS EN 4449. Fabric reinforcement BS 4483: 2005.


Concrete Volumes and Specification Load / span tables are based on Grade C25/30 concrete, having a cube strength of 30N/mm2.




Embossments Raised diagonal embossments in opposite directions on each face of the webs, provide mechanical connection between the steel deck and the hardened concrete.

References Engineers are advised to consult the SCI / MCRMA publication P300 Composite Slabs and beams using steel decking: Best practice for Design and Construction.

599 cover width

167

65 65204 204

160145

27

gauge

25

61

13177

75º

167265

Gauges: 1.2mm and 1.5mm Maximum length: 14.0m

15


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(mm)


(cm4/m)

Steel Area (mm2/m)


(kg/m2) (kN/m2) Sagging1.2 19.4 0.191 78.8 836 2400 32.41.5 24.3 0.239 79.9 1080 3020 42.3

Volume and Weight of Composite Slabs on Multideck 146

Slab Depth (mm)



Wet Dry Wet Dry215 0.128 3.014 2.951 2.386 2.260225 0.138 3.249 3.181 2.572 2.437235 0.148 3.485 3.412 2.759 2.613245 0.158 3.720 3.642 2.945 2.790255 0.168 3.955 3.873 3.131 2.967265 0.178 4.191 4.104 3.318 3.143275 0.188 4.426 4.334 3.504 3.320285 0.198 4.662 4.565 3.691 3.496295 0.208 4.897 4.795 3.877 3.673305 0.218 5.133 5.026 4.063 3.849




Reinforcement

Reinforcement to Concrete Composite SlabThe Multideck 146 composite concrete slab is always reinforced with one 16mm diameter bar in every trough and a suitable steel mesh reinforcement positioned near the top of the concrete slab.

16mm Diameter Bar ReinforcementThe Multideck 146 composite concrete slab requires a 16mm diameter rod positioned in every trough at 60mm height (from bottom of the deck). This bar reinforcement works in conjunction with the 146 steel deck to enhance the composite and fire design stage performance.

In some cases the bar reinforcement will need to be anchored, this can be achieved by sufficient overlap of the bars over internal supports. On external supports the anchorage can be provided by U bars if present, or by creating a 90º bend at the end of the bar over the support.

Note:Bar shown in central trough only for clarity. All troughs should include bar reinforcement. Spacer system by specialist manufacturer.

Mesh ReinforcementMesh is required to control the cracking that can occur in the concrete due to shrinkage or stresses in the concrete. BS EN 5950 part 4 recommends that the mesh area is a minimum of 0.1% of the cross sectional area of the concrete slab.

The engineer should increase the mesh area where:– the slab is propped;– the size of cracks in the concrete needs to be minimised;– brittle finishes are applied to the slab surface;– moving wheel loads or point loads are applied to the slab.

Mesh reinforcement should be placed near the upper edge of the concrete slab, in a zone of 15mm to 40mm.

Mesh sheets must be overlapped, use of flying ends make overlapping easier and avoid build up of the mesh thickness at overlaps.

The mesh should be supported on suitable mesh stools to maintain the required mesh position.

U bars are required at composite edge beams with shear studs, as on all other concrete composite steel deck floors supported on composite beams.


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Load / Span Tables

Load / Span Tables When using load tables for Multideck 146 please take into consideration the following notes:

1 All tabulated figures include the self weight of the slab.2 All tabulated figures include a construction allowance of

1.5kN/m2 over a length of 3.0m and 0.75kN/m2 over the remainder of the span. The 1.5kN/m2 is positioned at mid span for bending moment and adjacent to the support for shear (see diagram).

3 All tabulated values are based on use of concrete grade C25/30.

4 All tabulated loads include ponding of the wet concrete due to the deflection of the Multideck 146.

Additional concrete due to the deflection of the supports (beams) is not included in the table. Use the Toolkit Software to check solutions with additional loading to account for support deflection.

5 The suggested maximum ratios of slab span to slab depth are 30 for LWC and 35 for NWC to control deflections.

6 Deflection under construction loading (wet concrete etc.) has been limited to that stipulated in BS 5950: Part 4 1994.

7 Minimum reinforcement mesh sizes shown provide both 0.1% of the gross cross-sectional area and 0.2% of the cross sectional area above the ribs of the concrete at the support.

Minimum reinforcement should be increased where the slab is propped or there are moving loads, or concrete crack size is a consideration i.e. where brittle finishes are required.

Mesh reinforcement should be placed near the upper edge of the concrete slab, in a zone of 15mm to 40mm.

8 All values require a minimum of one 16mm diameter bar, grade B500, in each trough positioned at 60mm height

9 Line loads and / or point loading may require additional local reinforcement. Use the Multideck design software.

10 Total applied load referred to in the load tables is a working load based on factored combinations of live loads, finishes, ceilings, services and partitions, divided by a load factor of 1.60 (excluding slab self weight).

11 Temporary supports should remain in place until the concrete has achieved its 75% of the 28 day cube strength often available after 7 days.

12 Deck must lie flat on all support beams. Point only contact at the support will affect design loading.

13 Span values are centres of supports based on a width of support of 100mm. Minimum of 50mm end bearing on steel or concrete and 75mm on other materials.


15 Minimum slab depth is 195mm flush with top of studs but will require a structural cementitious screed for fire insulation.


3mspan

self weight x 1.4 self weight x 1.43m

span

construction load 1.5kN/m2 x 1.6 reduced construction

load 0.75kN/m2 x 1.6reduced construction load

0.75kN/m2 x 1.6

construction load 1.5kN/m2 x 1.6

Construction load positioned for max bending moment Construction load positioned for max shear


Normal Weight Concrete (Steel – 350N/mm2) – Unpropped Construction

Slab Depth (mm)

Concrete Volume (m3)

Minimum Mesh Size


4.0 6.0 8.0 10.0 12.0Maximum Span (m)

215 0.128 A142 5.74 5.74 5.74 5.64 5.33225 0.138 A142 5.67 5.67 5.67 5.67 5.46235 0.148 A193 5.58 5.58 5.58 5.58 5.58245 0.158 A193 5.50 5.50 5.50 5.50 5.50255 0.168 A193 5.43 5.43 5.43 5.43 5.43265 0.178 A252 5.35 5.35 5.35 5.35 5.35275 0.188 A252 5.30 5.30 5.30 5.30 5.30285 0.198 A252 5.24 5.24 5.24 5.24 5.24295 0.208 A393 5.17 5.17 5.17 5.17 5.17305 0.218 A393 5.08 5.08 5.08 5.08 5.08

Slab Depth (mm)


Minimum Mesh Size


4.0 6.0 8.0 10.0 12.0Maximum Span (m)

215 0.128 A142 6.07 6.07 6.07 5.72 5.38225 0.138 A142 6.00 6.00 6.00 6.00 5.68235 0.148 A193 5.92 5.92 5.92 5.92 5.92245 0.158 A193 5.85 5.85 5.85 5.85 5.85255 0.168 A193 5.77 5.77 5.77 5.77 5.77265 0.178 A252 5.70 5.70 5.70 5.70 5.70275 0.188 A252 5.63 5.63 5.63 5.63 5.63285 0.198 A252 5.57 5.57 5.57 5.57 5.57295 0.208 A393 5.51 5.51 5.51 5.51 5.51305 0.218 A393 5.46 5.46 5.46 5.46 5.46

Normal Weight Concrete (Steel – 350N/mm2) – Propped (Mid Span) Construction

Slab Depth (mm)


Minimum Mesh Size


4.0 6.0 8.0 10.0 12.0Maximum Span (m)

215 0.128 A142 6.45 6.45 6.30 * *225 0.138 A142 6.75 6.75 6.70 * *235 0.148 A193 7.05 7.05 6.93 * *245 0.158 A193 7.35 7.35 6.99 * *255 0.168 A193 7.65 7.65 7.05 6.01 *265 0.178 A252 7.95 7.95 7.08 6.06 *275 0.188 A252 8.25 8.25 7.12 6.10 *285 0.198 A252 8.55 8.42 7.14 6.15 *295 0.208 A393 8.85 8.50 7.17 6.18 *305 0.218 A393 9.15 8.54 7.19 6.21 *

Notes:All values require mesh as shown and 16mm diameter bar at 60mm height.Minimum reinforcement mesh sizes shown provide both 0.1% of the gross cross-sectional area and 0.2% of the cross sectional area above the ribs of the concrete at the support. * In these cases there is no improvement in span capacity in using propped construction over non propped construction. Propped values for the 1.2 gauge Multideck 146 should be obtained from the Multideck software.There is no Dramix® Steel Fibre solution for Multideck 146.

Load / Span Tables


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Lightweight Concrete (Steel – 350N/mm2) – Unpropped Construction

Slab Depth (mm)


Minimum Mesh Size


4.0 6.0 8.0 10.0 12.0Maximum Span (m)

215 0.128 A142 6.06 5.95 5.75 5.28 4.55225 0.138 A142 5.97 5.97 5.90 5.48 4.69235 0.148 A193 5.89 5.89 5.89 5.69 4.82245 0.158 A193 5.81 5.81 5.81 5.81 4.94255 0.168 A193 5.75 5.75 5.75 5.75 5.00265 0.178 A252 5.66 5.66 5.66 5.66 5.18275 0.188 A252 5.60 5.60 5.60 5.60 5.30285 0.198 A252 5.54 5.54 5.54 5.54 5.41295 0.208 A393 5.49 5.49 5.49 5.49 5.49305 0.218 A393 5.42 5.42 5.42 5.42 5.42

Slab Depth (mm)


Minimum Mesh Size


4.0 6.0 8.0 10.0 12.0Maximum Span (m)

215 0.128 A142 6.44 6.44 5.93 5.55 4.90225 0.138 A142 6.34 6.34 6.10 5.71 5.04235 0.148 A193 6.25 6.25 6.25 5.91 5.19245 0.158 A193 6.14 6.14 6.14 6.09 5.32255 0.168 A193 6.09 6.09 6.09 6.09 5.45265 0.178 A252 5.98 5.98 5.98 5.98 5.57275 0.188 A252 5.95 5.95 5.95 5.95 5.69285 0.198 A252 5.89 5.89 5.89 5.89 5.83295 0.208 A393 5.82 5.82 5.82 5.82 5.82305 0.218 A393 5.75 5.75 5.75 5.75 5.75

Lightweight Concrete (Steel – 350N/mm2) – Propped (Mid Span) Construction

Slab Depth (mm)


Minimum Mesh Size


4.0 6.0 8.0 10.0 12.0Maximum Span (m)

215 0.128 A142 6.76 * * * *225 0.138 A142 6.93 * * * *235 0.148 A193 7.11 6.54 * * *245 0.158 A193 7.31 6.71 * * *255 0.168 A193 7.51 6.93 * * *265 0.178 A252 7.72 7.13 * * *275 0.188 A252 7.93 7.33 * * *285 0.198 A252 8.12 7.52 6.19 * *295 0.208 A393 8.33 7.55 6.22 * *305 0.218 A393 8.54 7.57 6.26 * *

Notes:All values require mesh as shown and 16mm diameter bar at 60mm height.Minimum reinforcement mesh sizes shown provide both 0.1% of the gross cross-sectional area and 0.2% of the cross sectional area above the ribs of the concrete at the support. * In these cases there is no improvement in span capacity in using propped construction over non propped construction. Propped values for the 1.2 gauge Multideck 146 should be obtained from the Multideck software.There is no Dramix® Steel Fibre solution for Multideck 146.


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Fire Resistance

Fire Performance – Mesh1 The fire resistance tables for Multideck 146 on the following

pages must be read in conjunction with load / span tables for Multideck 146 to verify the structural integrity of the composite slab.

2 The following fire resistance tables for Multideck 146 are based on analysis by the Steel Construction Institute.

3 All stated slab depths comply with the minimum fire insulation criteria.

4 The composite slab is treated as a single span so the values shown can be used on a single or continuous slab.

5 All solutions have a minimum of one 16 bar grade B500 per trough at 60mm height.

The load tables are shown for unanchored and anchored bar reinforcement. Where there are internal supports anchoring the bars can be achieved with a simple overlap. At the end support, U bars around composite shear studs will provide the anchor. Otherwise use bond lengths beyond the inner flange edge and straight or bent bars.

The unanchored solution does not need any additional attachment of the bars.

6 Minimum laps should be 300mm for A142 mesh and 400mm for A193, A252 and A393 mesh.

7 Mesh reinforcement should be placed near the upper edge of the concrete slab, in a zone of 15mm to 40mm.

8 The tables are based upon Grade C25/30 concrete for other grades use the Multideck design software.

9 The tables are based on a load factor of 1.0 for the fire case. Further capacity can be achieved by taking into account the reduced partial factor of 0.8 or 0.5 as permitted in BS 5950: Part 8 for non-permanent imposed loads.

10 For fire performance on propped construction use the Multideck Design Software.

11 Span values are centres of supports based on a width of support of 100mm. Minimum of 50mm end bearing on steel or concrete and 75mm on other materials.

Examples of the applied loads for the fire load tables – load factors from BS5950 part 8.

The load tables are based on a Fire limit state load factor γf of 1.0.

For some applications the non permanent loading can use a load factor of γf of 0.8 and for office 0.5.

See table 5 BS 5950 part 8 section 7.1.

Case 1 office (general use)

kN/m2 Fire limit state load (kN/m2)Dead loads 3.75 x 1.0 = 3.75Super load 2.5Non permanent 2.5 x 0.5 = 1.25 officeLoad value for fire limit state 5.00

For a 215mm slab with 1.0 hour fire, the max span for anchored bars is 7.05m and for unanchored 6.33m.

Case 2 general (excluding plant and storage)

kN/m2 Fire limit state load (kN/m2)Dead loads 1.0 x 1.0 = 1.0Super load 5.0Made up of Permanent 3.0 x 1.0 = 3.0Non permanent 2.0 x 0.8 = 1.6 generalLoad value for fire limit state 5.6

For a 225mm slab with 1.5 hour fire, the max span for anchored bars is 6.92m and for unanchored 5.73m.

Always check the load / span capacity to verify the structural capacity and use the lesser of the capacities, fire limit state or structural.




Anchored 16mm diameter Bar ReinforcementNormal Weight Concrete – Unpropped Construction

Slab Depth (mm)

Concrete Volume

(m3)

Min Mesh Size


4.0 5.0 6.0 7.0 8.0 10.0 12.0 4.0 5.0 6.0 7.0 8.0 10.0 12.0Maximum Span (m) all 146 Gauges Maximum Span (m) all 146 Gauges

215 0.128 A142 7.54 7.05 6.65 6.30 6.01 5.53 5.14 7.54 7.05 6.64 6.30 6.01 5.52 5.10225 0.138 A142 7.67 7.19 6.78 6.44 6.15 5.66 5.27 7.67 7.18 6.78 6.44 6.14 5.66 5.27235 0.148 A193 7.79 7.31 6.91 6.57 6.27 5.79 5.40 7.78 7.31 6.91 6.57 6.27 5.79 5.40245 0.158 A193 7.89 7.42 7.03 6.69 6.39 5.91 5.52 7.89 7.42 7.03 6.69 6.39 5.91 5.52255 0.168 A193 7.99 7.53 7.14 6.80 6.51 6.02 5.63 7.99 7.53 7.14 6.80 6.51 6.02 5.63265 0.178 A252 8.08 7.63 7.24 6.91 6.61 6.13 5.73 8.08 7.63 7.24 6.91 6.61 6.13 5.73275 0.188 A252 8.17 7.72 7.34 7.01 6.72 6.23 5.84 8.17 7.72 7.34 7.01 6.72 6.23 5.84285 0.198 A252 8.25 7.81 7.43 7.10 6.81 6.33 5.93 8.25 7.81 7.43 7.10 6.81 6.33 5.92295 0.208 A393 8.33 7.89 7.52 7.19 6.90 6.42 6.03 8.33 7.89 7.52 7.19 6.90 6.42 5.96305 0.218 A393 8.40 7.97 7.60 7.28 6.99 6.51 6.12 8.40 7.97 7.60 7.28 6.99 6.51 6.01

Slab Depth (mm)

Concrete Volume

(m3)

Min Mesh Size



215 0.128 A142 – – – – – – – – – – – – – –225 0.138 A142 7.64 7.16 6.76 6.42 6.12 5.64 4.90 – – – – – – –235 0.148 A193 7.76 7.28 6.89 6.55 6.25 5.77 5.07 7.62 7.15 6.76 6.43 6.14 5.51 4.80245 0.158 A193 7.87 7.40 7.00 6.67 6.37 5.89 5.23 7.73 7.27 6.88 6.55 6.26 5.70 4.97255 0.168 A193 7.97 7.51 7.12 6.78 6.49 6.00 5.38 7.83 7.37 6.99 6.66 6.37 5.87 5.13265 0.178 A252 8.06 7.61 7.22 6.89 6.60 6.11 5.49 7.92 7.47 7.09 6.77 6.48 5.99 5.25275 0.188 A252 8.15 7.70 7.32 6.99 6.70 6.21 5.56 8.00 7.56 7.19 6.86 6.58 6.07 5.33285 0.198 A252 8.23 7.79 7.41 7.08 6.79 6.31 5.62 8.08 7.65 7.28 6.96 6.67 6.14 5.40295 0.208 A393 8.30 7.87 7.50 7.17 6.88 6.40 5.68 8.16 7.73 7.36 7.04 6.76 6.20 5.46305 0.218 A393 8.38 7.95 7.58 7.26 6.97 6.49 5.73 8.23 7.81 7.44 7.13 6.85 6.26 5.52

Note:These values are for unpropped spans only. For cases where the deck is propped please use the Kingspan Toolkit Software.


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Anchored 16mm diameter Bar ReinforcementLightweight Concrete – Unpropped Construction

Slab Depth (mm)

Concrete Volume

(m3)

Min Mesh Size



215 0.128 A142 7.95 7.38 6.92 6.54 6.21 5.68 5.27 7.95 7.38 6.92 6.54 6.21 5.68 5.27225 0.138 A142 8.10 7.54 7.08 6.69 6.36 5.83 5.41 8.10 7.54 7.08 6.69 6.36 5.83 5.41235 0.148 A193 8.24 7.68 7.22 6.84 6.51 5.97 5.54 8.24 7.68 7.22 6.84 6.51 5.97 5.54245 0.158 A193 8.37 7.82 7.36 6.97 6.64 6.10 5.67 8.37 7.82 7.38 6.97 6.64 6.10 5.67255 0.168 A193 8.50 7.94 7.49 7.10 6.77 6.23 5.80 8.50 7.94 7.49 7.10 6.77 6.23 5.80265 0.178 A252 8.61 8.08 7.61 7.23 6.89 6.35 5.91 8.61 8.06 7.61 7.23 6.89 6.35 5.91275 0.188 A252 8.72 8.18 7.73 7.34 7.01 6.46 6.03 8.72 8.18 7.73 7.34 7.01 6.46 6.03285 0.198 A252 8.82 8.29 7.84 7.45 7.12 6.57 6.13 8.82 8.29 7.84 7.45 7.12 8.57 6.13295 0.208 A393 8.92 8.39 7.94 7.56 7.23 6.68 6.24 8.92 8.39 7.94 7.56 7.23 6.68 6.24305 0.218 A393 9.01 8.48 8.04 7.66 7.33 6.78 6.34 9.01 8.48 8.04 7.66 7.33 6.78 6.34

Slab Depth (mm)

Concrete Volume

(m3)

Min Mesh Size



215 0.128 A142 7.95 7.38 6.92 6.54 6.21 5.68 5.27 – – – – – – –225 0.138 A142 8.10 7.54 7.08 6.69 6.36 5.83 5.41 8.10 7.54 7.08 6.69 6.36 5.83 5.41235 0.148 A193 8.24 7.68 7.22 6.84 6.51 5.97 5.54 8.24 7.68 7.22 6.84 6.51 5.97 5.54245 0.158 A193 8.37 7.82 7.36 6.97 6.64 6.10 5.67 8.37 7.82 7.36 6.97 6.64 6.10 5.67255 0.168 A193 8.50 7.94 7.49 7.10 6.77 6.23 5.80 8.50 7.94 7.49 7.10 6.77 6.23 5.80265 0.178 A252 8.61 8.06 7.61 7.23 6.89 6.35 5.91 8.61 8.06 7.61 7.23 6.89 6.35 5.91275 0.188 A252 8.72 8.18 7.73 7.34 7.01 6.46 6.03 8.72 8.18 7.73 7.34 7.01 6.46 6.03285 0.198 A252 8.82 8.29 7.84 7.45 7.12 6.57 6.13 8.82 8.29 7.84 7.45 7.12 6.57 6.13295 0.208 A393 8.92 8.39 7.94 7.56 7.23 6.68 6.34 8.92 8.39 7.94 7.56 7.23 6.68 6.24305 0.218 A393 9.01 8.48 8.04 7.66 7.33 6.78 6.34 9.01 8.48 8.04 4.66 7.33 6.78 6.34




Unanchored 16mm diameter Bar ReinforcementNormal Weight Concrete – Unpropped Construction

Slab Depth (mm)

Concrete Volume

(m3)

Min Mesh Size



215 0.128 A142 7.54 6.71 5.96 5.36 4.87 4.12 3.57 7.24 6.33 5.62 5.06 4.59 3.88 3.36225 0.138 A142 7.67 6.97 6.21 5.60 5.10 4.32 3.75 7.51 6.59 5.87 5.30 4.82 4.09 3.55235 0.148 A193 7.79 7.21 6.44 5.82 5.31 4.52 3.93 7.77 6.84 6.12 5.53 5.04 4.29 3.74245 0.158 A193 7.89 7.42 6.66 6.04 5.52 4.71 4.11 7.89 7.08 6.35 5.75 5.26 4.49 3.91255 0.168 A193 7.99 7.53 6.88 6.24 5.72 4.89 4.28 7.99 7.31 6.57 5.96 5.46 4.67 4.08265 0.178 A252 8.08 7.63 7.01 6.38 5.85 5.02 4.40 8.08 7.45 6.71 6.11 5.60 4.81 4.21275 0.188 A252 8.17 7.72 7.08 6.45 5.93 5.10 4.48 8.17 7.52 6.79 6.19 5.69 4.90 4.30285 0.198 A252 8.25 7.81 7.14 6.52 6.00 5.18 4.55 8.25 7.58 6.86 6.27 5.77 4.98 4.38295 0.208 A393 8.33 7.89 7.19 6.58 6.07 5.25 4.62 8.33 7.63 6.93 6.34 5.84 5.05 4.45305 0.218 A393 8.40 7.97 7.24 6.64 6.13 5.32 4.69 8.40 7.68 6.99 6.41 5.91 5.13 4.53

Slab Depth (mm)

Concrete Volume

(m3)

Min Mesh Size



215 0.128 A142 – – – – – – – – – – – – – –225 0.138 A142 6.99 6.13 5.46 4.93 4.49 3.81 3.30 – – – – – – –235 0.148 A193 7.26 6.39 5.72 5.17 4.71 4.01 3.49 6.87 6.05 4.51 4.89 4.46 3.80 3.30245 0.158 A193 7.51 6.64 5.96 5.40 4.93 4.21 3.67 7.14 6.31 5.66 5.12 4.68 4.00 3.49255 0.168 A193 7.75 6.88 6.18 5.62 5.14 4.40 3.85 7.39 6.56 5.89 5.35 4.90 4.19 3.66265 0.178 A252 7.91 7.04 6.34 5.77 5.30 4.54 3.98 7.56 6.73 6.06 5.51 5.06 4.34 3.80275 0.188 A252 7.98 7.12 6.44 5.87 5.39 4.64 4.07 7.64 6.82 6.16 5.62 5.16 4.44 3.90285 0.198 A252 8.04 7.20 6.52 5.96 5.48 4.73 4.16 7.72 6.91 6.26 5.72 5.26 4.54 3.99295 0.208 A393 8.10 7.27 6.60 6.04 5.57 4.81 4.24 7.79 6.99 6.35 5.81 5.35 4.63 4.08305 0.218 A393 8.15 7.34 6.67 6.12 5.65 4.89 4.32 7.85 7.07 6.43 5.89 5.44 4.72 4.16



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Unanchored 16mm diameter Bar ReinforcementLightweight Concrete – Unpropped Construction

Slab Depth (mm)

Concrete Volume

(m3)

Min Mesh Size



215 0.128 A142 7.95 7.38 6.59 5.88 5.30 4.44 3.82 7.95 7.38 6.50 5.80 5.24 4.38 3.77225 0.138 A142 8.10 7.54 6.88 6.15 5.56 4.67 4.02 8.10 7.54 6.80 6.08 5.50 4.61 3.97235 0.148 A193 8.24 7.68 7.16 6.41 5.81 4.89 4.22 8.24 7.68 7.08 6.34 5.75 4.83 4.17245 0.158 A193 8.37 7.82 7.36 6.67 6.05 5.11 4.41 8.37 7.82 7.35 6.60 5.99 5.05 4.37255 0.168 A193 8.50 7.94 7.49 6.92 6.29 5.32 4.61 8.50 7.94 7.49 6.85 6.22 5.26 4.56265 0.178 A252 8.61 8.06 7.61 7.09 6.45 5.47 4.75 8.61 8.06 7.61 7.02 6.39 5.42 4.70275 0.188 A252 8.72 8.18 7.73 7.19 6.55 5.57 4.84 8.72 8.18 7.73 7.12 6.49 5.52 4.80285 0.198 A252 8.82 8.29 7.84 7.28 6.65 5.66 4.93 8.82 8.29 7.84 7.22 6.59 5.61 4.89295 0.208 A393 8.92 8.39 7.94 7.37 6.74 5.75 5.02 8.92 8.39 7.94 7.31 6.68 5.70 4.98305 0.218 A393 9.01 8.48 8.04 7.45 6.82 5.84 5.10 9.01 8.48 8.04 7.39 6.77 5.79 5.06

Slab Depth (mm)

Concrete Volume

(m3)

Min Mesh Size



215 0.128 A142 7.95 7.27 6.39 5.70 5.14 4.30 3.70 – – – – – – –225 0.138 A142 8.10 7.54 6.69 5.98 5.40 4.54 3.91 8.10 7.42 6.54 5.84 5.28 4.43 3.82235 0.148 A193 8.24 7.68 6.97 6.24 5.66 4.76 4.11 8.24 7.68 6.82 6.11 5.54 4.66 4.02245 0.158 A193 8.37 7.82 7.24 6.50 5.90 4.98 4.30 8.37 7.82 7.10 6.37 5.78 4.88 4.22255 0.168 A193 8.50 7.94 7.49 6.75 6.14 5.19 4.50 8.50 7.94 7.36 6.63 6.02 5.09 4.41265 0.178 A252 8.61 8.06 7.61 6.93 6.31 5.35 4.64 8.61 8.06 7.55 6.81 6.19 5.25 4.56275 0.188 A252 8.72 8.18 7.73 7.03 6.41 5.45 4.74 8.72 8.18 7.66 6.91 6.30 5.36 4.66285 0.198 A252 8.82 8.29 7.84 7.13 6.51 5.55 4.83 8.82 8.29 7.76 7.02 6.41 5.46 4.75295 0.208 A393 8.92 8.39 7.94 7.22 6.61 5.64 4.92 8.92 8.39 7.85 7.11 6.50 5.55 4.84305 0.218 A393 9.01 8.48 8.04 7.31 6.70 5.73 5.01 9.01 8.48 7.94 7.20 6.60 5.64 4.93



Sound Attenuation

Predicted Site Acoustic Performance of Floors with Multideck 146

Slab Depth (mm)



Treatment


Treatment


Floor (FFT4)


Floor (FFT3)


Screed

215 35 to 39 49 to 53 48 to 52 50 to 54 49 to 53225 36 to 40 50 to 54 49 to 53 51 to 55 50 to 54235 37 to 41 51 to 55 50 to 54 52 to 56 51 to 55245 38 to 42 52 to 56 51 to 55 53 to 57 52 to 56255 39 to 43 53 to 57 52 to 56 54 to 58 53 to 57265 40 to 44 54 to 58 53 to 57 55 to 59 54 to 58275 41 to 45 55 to 59 54 to 58 56 to 60 55 to 59285 41 to 45 55 to 59 54 to 58 56 to 60 55 to 59295 42 to 46 56 to 60 55 to 59 57 to 61 56 to 60305 43 to 47 57 to 61 56 to 60 58 to 62 57 to 61

Slab Depth (mm)



Treatment


Treatment


Floor (FFT4)


Floor (FFT3)


Screed

215 to 305 78 to 82 70 to 74 51 to 55 52 to 56 48 to 52

Note:Values shown shaded are not sufficient for separating floors in residential buildings.For floor systems which comprise a composite slab (depth = 215 to 305mm) on Multideck 146 deck, a suspended ceiling and a floor treatment, the airborne and impact sound insulation provided will easily satisfy the requirements for separating floors in residential buildings.The junction details between the walls and floors must be appropriately detailed to ensure flanking sound is minimised.



Mul

tide

ck 5

0M

ulti

deck

60

Mul

tide

ck 8

0M

ulti

deck

146


Construction Details Multideck 50-V3

Concrete slab

Trim depth varies to suit slab

Slab edge trim

Shear stud

Restraint strap

50 min

40 min

Multideck 50-V3 composite metal deck


Slab edge trim

Shear studRestraint strap

50 min


Concrete slab

Side Detail

Side Detail

Composite Beam DesignMin edge distance 6d to CL stud from edge of slab (BS 5950 : PT 3 Section 3:1)


Side Detail with Cantilever

Maximum cantilever

50 min

40 min


Concrete slab


Slab edge trim

Restraint strap

Shear stud

Edge Trim Gauge (mm)Slab Depth (mm) 1.2 2.0

120 126 187130 123 183140 121 180150 119 177160 117 174175 115 170200 – 165250 – 156

These values are for guidance only.

Notes:1. Deflection is limited to 3.0mm (approx) under wet weight of concrete only.2. The table can be used for normal and lightweight concrete.3. An allowance of 1.5kN/m2 is made for construction imposed load in the

bending capacity analysis.4. Edge trim acts as permanent formwork only. Any necessary cantilever

reinforcement should be designed to BS 8110 requirements.5. We recommend that slabs of 200mm and over use 2.0mm edge trim.6. Assumes that edge restraint straps are fixed as least every 600mm.

Omagh College, Tyrone, Ireland. Photo Courtesy of Composite Design Ireland Ltd.

Maximum Edge Trim Cantilevers (mm)



Slab edge trim

Shear stud

End closure tape or foam to prevent excessive grout loss

Restraint strap

50 min

50 min

Maximum cantilever


Concrete slab


End Detail with Cantilever

End Detail


Restraint strap


Slab edge trim

Concrete slabShear stud

Notes:1. All dimensions are nominal and to be used as a guide for setting out details2. Construction stage deck cantilevers should be limited to the lesser of

(a) 1/4 x adjacent span, or (b) 600mm.3. Decking acts as permanent formwork only for cantilever slabs:

any necessary cantilever reinforcement should be designed to BS 8110 requirements by the Engineer.


Intermediate Beam Detail

Slab depthvaries

40 min

40 min


Shear stud

Concrete slab


Slab depth varies



Concrete slab

Shear stud


Intermediate Beam – Change in Direction of Lay


Intermediate Beam – Change in Direction of Lay with Ledger Angle

Slab depth varies


50mm min bearing

Ledger angle projection (see diagram below)


Concrete slab

Multideck Supported on Ledger AnglesWhere Multideck is supported on ledger angles check deck length (L) required to fit and provide minimum bearing of 50mm at a each end as follows.

L (Max.) = S – (F/2 + T/2 + 20mm)

L (Min.) = C + (50 x 2)

flange width F (mm)

50mmmin. bearing

50mmmin. bearing

webT (mm)clear between shelf angles C (mm)

beam c/c S (mm)

deck length L (mm)

final position of deck


Construction Details Multideck 60-V2 and 80-V2

Side Detail

Edge Trim Gauge (mm)Slab Depth (mm) 1.2 2.0

120 126 187130 123 183140 121 180150 119 177160 117 174175 115 170200 – 165250 – 156




reinforcement should be designed to BS 8110 requirements.5. We recommend that slabs of 200mm and over use 2.0mm edge trim.6. Assumes that edge restraint straps are fixed as least every 600mm.

Two Towers, Arnhem, Netherlands.Photo Courtesy of MSW (UK) Ltd.


Composite Beam DesignMin edge distance 6d to CL stud from edge of slab (BS 5950 : PT 3 Section 3:1)


Slab edge trim

Shear stud Restraint strap

Multideck 60-V2 / 80-V2 composite metal deck

Concrete slab

50 min

40 min


Side Detail using Closure Trim

Side Detail – Multideck Cut to Width

Concrete slab

40 min100 max


Slab edge trimShear stud

Restraint strap

Multideck side closure profile ‘A’

50 min

Maximumcantilever


Concrete slab


Slab edge trim

Restraint strap

Shear stud

Multideck side closure profile ‘A’

50 min

Maximumcantilever

40 min100 max




Slab edge trim

Concrete slabShear stud

Restraint strap

Maximum cantilever

50 minMultideck 60-V2 / 80-V2

composite metal deckEnd closure piece to prevent

excessive grout loss


End Detail using End Closure

End Detail Multideck Cantilever

Note:1. Construction stage deck cantilevers should be limited to the lesser

of (a) 1/4 x adjacent span, or (b) 600mm.2. Decking acts as permanent formwork only for cantilever slabs:



Slab edge trim Concrete slabShear stud

Restraint strap


50 min

Maximum cantilever(see note 1)


Concrete slab

Concrete slab

Intermediate Beam using Closure Trim

Intermediate Beam – Change in Direction of Lay

Shear stud

Slab depth varies

100 max

40 min

Slab depth varies

Shear stud


End closure piece to prevent excessive grout loss



Concrete slab Slab depth varies


50mm min bearing


Ledger angle projection (see diagram below)


Intermediate Beam – Change in Direction of Lay with Ledger Angle

Multideck Supported on Ledger AnglesWhere Multideck is supported on ledger angles check deck length (L) required to fit and provide minimum bearing of 50mm at a each end as follows.

L (Max.) = S – (F/2 + T/2 + 20mm)

L (Min.) = C + (50 x 2)

flange width F (mm)

50mmmin. bearing

50mmmin. bearing

webT (mm)clear between shelf angles C (mm)

beam c/c S (mm)

deck length L (mm)

final position of deck


50min

70min

75min

100min

Construction Details Multideck (all profiles)

Minimum Bearing SurfaceEnd Bearing on Brick or Blockwork Walls Continuous Bearing on Brick or Blockwork Walls

End Bearing on Steel or Concrete Continuous Bearing on Steel or Concrete


Composite Beam DesignMin. edge distance 6d to CL stud from edge of slab (BS 5950 : PT 3 Section 3:1)


Slab edge trim

Shear stud

Restraint strap

Multideck 146 composite metal deck

Concrete slab

50 min

40 min

Construction Details Multideck 146

Side Detail

Edge Trim Gauge (mm)Slab Depth (mm) 1.2 2.0 2.7

215 110 163 205225 109 161 202235 107 159 200245 106 158 198255 105 156 196265 104 155 194275 103 153 193285 102 152 191




reinforcement should be designed to BS 8110 requirements.5. Assumes that edge restraint straps are fixed as least every 600mm.



Construction Details Multideck 146

Side Detail using Closure Trim

Side Detail – Multideck Cut to Width

Slab edge trim

Multideck side closure

Multideck side closure

50 min

Maximum cantilever

40 min

100 max


Restraint strap

Restraint strap

Concrete slab

Concrete slab



Shear stud

Shear studSlab edge trim

50 min

Maximum cantilever

40 min

100 max



End Detail using End Closure

End Detail Multideck Cantilever

Note:1. Construction stage deck cantilevers should be limited to the lesser

of (a) 1/4 x adjacent span, or (b) 600mm.2. Decking acts as permanent formwork only for cantilever slabs:



Slab edge trimConcrete slabShear stud

Restraint strap

Maximum cantilever50 min



50 min

Maximum cantilever(see note 1)


Slab edge trimConcrete slabShear stud

Restraint strap



Sitework

Quality Control On-siteQuality control on site should be based on the recommendations of BS 8000: Part 2 Concrete Work.

StorageMultideck should be stored under cover or beneath waterproof tarpaulins, off the ground on suitable timber framing with good air circulation around the sheet. The sheets should slope to drain away any rain water which may enter the storage area.

When exposed to moisture, galvanised deck will develop a coating of zinc oxide. If left, this may reduce the degree of protection, so it is important to inspect regularly for moisture, and take immediate remedial action.

HandlingWhen deck has to be lifted onto the building framework, care must be taken to avoid damage by using suitable lifting equipment. Use of unprotected chains will cause damage and are not recommended. Sheet corners must be protected as these are particularly vulnerable to damage.

Never walk on deck in the stack or before it is securely fixed in position (see also ‘Safety’).

Multideck sheets must not be dragged from the stack. Remove by lifting off one at a time.

Full personnel safety equipment must be used at all times.

SafetyImportantWe recommend that all Multideck profiles are installed with the appropriate safety considerations. Following full risk assessment. Safety nets are a recognised solution for most cases.

Handling HazardsMultideck may have a residual protective coating when delivered and should be handled with care. See BSC HS Data Sheet 18.

Eye HazardsCare should be taken when breaking the strapping around bundles. Eye protectors conforming to the latest British Standard should always be worn.

Protective ClothingTo prevent laceration of skin, contamination by oil and risks to eyes and hands, protective overalls, gloves and eye protection should be worn at all times.

Transport and Site AccessDelivery vehicles are up to 16m long with a maximum gross weight of 30 tonnes and a turning circle of 25m. They require an access road at least 4m wide and 12m of good hard standing to allow for crane-operated unloading. Standard loads will not exceed 25 tonnes.

UnloadingUnloading of vehicles on-site is the responsibility of others.

Safe Off Loading Systems AvailableTrailers with an integral fall arrest system are available on request. Please liase with your Customer Service contact when discussing deliveries. Trailers equipped with Moffett mounted truck mountable fork lift trucks are also available.

Fork Lift TrucksSheets of Multideck up to 7m long can be off loaded by fork lift trucks. Sheets longer than 7m should be lifted by crane. Multideck should be placed directly onto the supporting steelwork. If this is impractical, it should be stored as recommended under ‘Storage’.

Deck IdentificationAll Multideck bundles are marked to correspond with the customers identification requirements. Identification includes floor location, grid location, deck length, gauge and direction of lay. Where possible, bundles should be lifted from the transport and placed on the support frame ready for fixing. See pages 102 and 103.


Multideck 50-V3Tape ends to avoid excessive grout loss

Multideck 60-V2 and 80-V2End closure piece to prevent excessive grout loss

Multideck 146End closure piece

Tape overlap ends to prevent excessive grout loss

Matthew Boulton College, Birmingham, UKPhoto Courtesy of MSW (UK) Ltd.

Multideck Weights Multideck 50-V3 Gauge Self Weight (kg/m2)

0.85 mm 11.420.9 mm 12.891.0 mm 14.361.1 mm 15.831.2 mm 17.29

Multideck 60-V2 Gauge Self Weight (kg/m2)0.9 mm 9.341.0 mm 10.371.1 mm 11.411.2 mm 12.45

Multideck 80-V2 Gauge Self Weight (kg/m2)1.0mm 11.491.1mm 12.641.2 mm 13.83

Multideck 146 Gauge Self Weight (kg/m2)1.2 mm 19.41.5 mm 24.3


Sitework

Pack IDThese should be read in conjunction with the customers identification requirements.

All Multideck bundles are marked to correspond with the customers identification requirements. Identification includes floor location, grid location, deck length, gauge and direction of lay. Where possible, bundles should be lifted from the transport and placed on the support frame ready for fixing.

Packing labels and plans for Multideck are designed to make life easier on site.

Direction of LayPosition pack at indicated position. Orientate the pack so that the direction of lay strip faces the direction indicated on the deck layout drawing.

Completed deck layout from layout drawing oppositePack ID


Example of Typical Layout Drawing (normally provided by deck fixer)

4

Pack E.1.01 (1.2g)

6 @ 1921

52975CPlan Key

Position of pack on steelwork

No. of Studs along beam

Direction of lay


Sitework Primary fixing of the MultideckPrior to laying the Multideck the supports should be inspected to ensure that they are sound and suitable for the purpose. Engineers and contractors are advised to consult the SCI P300, MCRMA Technical Paper 13 ‘Composite Slabs and beams using steel decking: Best practice for design and construction’. And the BCSA code of practice for ‘Metal Decking and Stud Welding’.

Multideck sheets must be laid and securely fixed to the support structure using primary fixings through the trough of the Mutlideck to avoid dislodgment or damage prior to and during the pour of the concrete.

There are a number of fixing types that may be employed to secure the Multideck to the supporting structure, but, in general shot-fired fixings are both fast and economical.

Multideck 50-V3 (A) = 500mm MaxMultideck 60-V2 (A) = 323mmMultideck 80-V2 (A) = 300mmMultideck 146 (A) = 530mm Max.

(B) Intermediate fixings at lap only

(A) Fixings on both sides of butt joint

(A) Fixings

Butt joint on beam

Intermediate beam

Edge beam

AA

A

A

A

A

A

A

B

Where the Multideck will subsequently be through deck stud welded a fixing size and specification can be chosen to support the temporary load case only. Typical fixings would be Spit SDK9, Hilti X-U 15 or similar. The suitability for use on a project for any fixing type must be checked with the fixing supplier.

If through deck stud welding is not being used the fixings should be sized by the engineer to suit the support beam restraint requirements both in the temporary and permanent load cases. The fixing manufactures should be consulted for guidance on the suitability and application of the fixing types.

Typical fixings to consider are Hilti X-ENP-19, Spit SBR14, Spit HSBR14 or similar. The restraint requirements for steel beams can be obtained from the structural design standard used – for example BS5950 Part 3 section 3.1: Appendix A.2.3

Where Multideck is supported on concrete beams or masonry, shot fired fixings may still be employed or use Spit Tapcon concrete screws or the Hilti HUS (Hilti Universal Screw). See manufactures literature for guidance. For fixing to other materials and for further information contact the fixing manufacturer.


Minimum Fixing Numbers for MultideckMore fixings may be required if they are solely providing the restraint to the support beam

MD50-V3 Every sheet must have two fixings at the panel ends, and two fixings at any internal supports. Fixings must be placed one in a trough.

MD60 V2 and MD80-V2 Every sheet must have one fixing in each trough at the Multideck ends, and one fixing in the lap trough at any internal supports of that Multideck sheet.

MD146 Every sheet must have one fixing in each trough at the panel ends, and one fixing in the lap trough at any internal supports. MD146 is normally used single span.

Side Lap Fixings Self drill self tapping screws are generally used in the side lap joints to control grout loss.

MD50-V3 Side lap fixings are not normally required

MD60 V2 and MD80-V2 Fixings at mid span are required. For spans above 3.0m additional fixings at 1.5m maximum spacing are required.

MD146 Fixings at max spacing of 1.5m long the side lap.


Sitework Multideck 50 / 60 / 80 – Shear Studs

Shear Studs Where the supporting beam is engineered to be composite with the slab, shear connection is required between the steel beam and the concrete. This shear connection takes the form of headed studs which can be through deck stud welded to the top flange of the beam on site. Or if the deck is used in single span lengths the studs can be welded directly to the top of the beam in the fabrication shop.

Use of the deck single span has serious cost issues for the slab so the use of double span deck lengths is the norm.

Shear Stud Sizes and LengthsShear studs for through deck welding are 19mm diameter headed studs of varying lengths. The material is low carbon steel with a minimum yield strength of 350N/mm2 and a minimum ultimate tensile strength of 450N/mm2.

The length of shear studs is given as the length after welding LAW and for Multideck the shear stud should extend not less than 35mm over the shoulder of the deck i.e.Multideck 50-V3 use standard stud length of 95mm LAWMultideck 60-V2 use standard stud length of 95mm LAWMultideck 80-V2 use standard stud length of 120mm LAW

Steel Beam SupportThe flange thickness of the underlying support beam should not be less than 0.4 x the stud diameter or 7.6mm for the 19 diameter stud. The top flange of the steel beam must be unpainted if studs are to be successfully through deck welded

The flange of the supporting beam must be of sufficient width where shear studs are provided in pairs – see the diagram on page 107 for dimensions.

Concrete Cover to StudsThe concrete cover over the stud should not be less than 15mm. If the concrete is required to protect the connector against corrosion it should not be less than 20mm

Stud Strengths Where shear studs are used to provide composite beam action the stud strength in the concrete can be calculated to BS5950 part 3 Section 3.1 using the Multideck geometry

Where the concrete is reinforced with Dramix Steel fibres the shear stud strengths calculated from BS5950 part 3 section 3.1 may be used as they are conservative or use the design guide supplied by Bekaert.

For the MD146 deck the stud strength values see page 108 or contact Structural Products Technical Department.

Stud Welding Equipment Welding equipment should be from a reputable manufacturer with a minimum of 200KVA for a diesel generator or mains power at 415V 3 phase fused at 100A per phase. Adequate earth connection is required if through deck welds are to be made.


Stud Positioning – Multideck 60-V2 / 80-V2Stud Positioning – Multideck 50-V3

Stud Layout Geometry The following data is intended to be used only as a guide. Final design criteria are the responsibility of the design agency and / or a qualified design engineer.

1) The spacing of the studs should not be less than – 95mm in the direction of the shear force or

diagonal dimension– 76mm transverse to the direction of the shear force and

when studs are in line– 57mm transverse to the direction of the shear force

when studs are in a diagonal pattern2) The longitudinal spacing of the studs should not exceed the

lesser of 600mm or 4 x the slab depth. 3) The distance between the edge of a stud and the edge of the

steel beam flange should not be less than 20mm.4) Where studs are required along a beam and the deck is

transverse to the beam – the studs must be spaced to suit the location of the deck troughs.

5) Where there is a Multideck joint over the supporting beam and one stud per trough. The studs should be through deck welded in alternate troughs on each deck. So that each deck end in anchored by studs in alternate troughs.

Pre Welded StudsShear studs can be welded directly to the top flange in the fabrication shop but this requires that the Multideck is used in single span lengths.

With pre welded studs all of the beam can be protected against corrosion. However, use of the deck single span has serious cost issues for the slab so the use of double span deck lengths is the norm.

The position of the shear studs along the beam should be laid out to line through with the troughs in the deck transverse to the beam span.

Stud layouts and beam flange size should be considered carefully to ensure there is a minimum bearing of 50mm for the deck and that the practicalities of placing packs of deck safely and laying out the deck are taken account of.

Other Forms of Shear Connector Different shear connectors can be used to make the shear joint between the steel beam and the concrete.

Mechanical brackets using shot fired pins to anchor to the steel beam are available but generally have a much lower shear capacity than that of through deck welded studs.

Pairs of shear studs per trough in staggered pattern

One shear stud per trough

20mm min 20mm min

l< 57mm

l< 76mm

l< 95mm


Alternate Detail – Pairs of Shear Studs per Trough staggered pattern at overlap

Sitework Multideck 146 – Shear Studs

Through Deck Stud WeldingMultideck 146 is available in gauges 1.2 and 1.5mm and all gauges can be through deck stud welded to suitable supporting beams.

Shear studs are 19mm diameter headed shear studs of low carbon steel, with a minimum yield point of 350N/mm2 and an ultimate tensile strength of 450N/mm2.

For the Multideck 146 the length of shear stud is 200mm or 195mm LAW and 19mm diameter.

The stud capacity for 195mm LAW 19mm diameter studs used with Multideck 146 and 25/30* concrete is:One stud Prd = 28.2 kN each studTwo studs Prd = 19.6 kN each stud

Pair of studs must be at least 76mm apart in the transverse direction hence, the smallest flange width for two studs is 135mm.

Multideck 146 with studs placed in every trough provides minimum spacing of 265mm.

Where single studs per trough are used and the deck is single span, the stud placement should be staggered in alternate troughs on each deck.*For other concrete strengths contact Kingspan Structural Technical Department.

Stud Positioning – Multideck 146

l< 76mm

20mm min

l< 57mm

l< 95mm

20mm min

20mm min

20mm min 135mm

minFlange Width

l< 76mm

Pairs of Shear Studs per TroughSingle Stud per Trough at Butt Joint

Note: Centre line of studs must be a Minimum of 33mm from end of deck.

Prefixed to BeamsMultideck 146 has been optimised for single span performance so is ideal for use with beams that have the shear studs placed in the fabrication shop, avoiding or vastly reducing the need to weld on-site.

While the Multideck 146 is generally used with 19mm diameter studs, it can equally be used with other types of shear attachment.

Stud layout should be placed carefully to ensure there is a minimum bearing of 50mm and that the practicalities of placing packs of deck and laying out the deck are taken account of.


The following empirical rules are based on recommendations as given in the Concrete Society report on standard details and the Steel Construction Institute publication ‘Good Practice in Composite Floor Construction’.

Formation of Holes in Multideck Floor Slabs

Timber shutter

Dense polystyrene blocks

Structural Limitatio nsWhere the slab is supporting uniformly distributed loads the following rules may be applied. If concentrated or line loads exist adjacent to holes a special analysis may be required.

Holes should be formed after the slab is cast, shutters being used to make a void in the concrete.

1. No hole should be closer than its width to an unsupported edge.

2. The maximum width of hole measured transversely to the span of the slab should not be greater than 700mm without additional trimming support beams.

3. In any 4m width of slab measured transversely to the span of the slab, not more than 1/4 of the slab width should be removed by all holes in the span under consideration. For slabs less than 4m wide the permissible width of holes should be reduced proportionately.

4. The length of hole measured parallel to the slab span should not be greater than 1/4 of the span without provision of trimming support beams.

5. When the distance between holes is less than 1 1/2 times the width of the largest opening, the group of holes should be considered as a single hole with an effective length of width taken as the perimeter of the group.

The following information is for guidance only. The design and detailing of additional trimming reinforcement around voids is the responsibility of the engineer.

Construction Details1. Holes not trimmed by supporting beams should be boxed

out with the formwork prior to concreting and the hole in the deck should not be cut until the concrete has achieved at least 75% of its design strength.

2. Holes up to 300mm square will not require additional reinforcement or trimming beams.

3. Holes over 300mm square up to 500mm square will require the following additional reinforcement if trimming support beams are not provided.

a. One T 20 bar in each trough either side of the hole (or multiple smaller bars giving equivalent area).

b. One T 20 bar across each end of the hole on the deck transverse to the slab span (or multiple smaller bars giving equivalent area).

c. Two additional high yield bars of the same diameter as the mesh parallel to each edge of the hole at mesh level. All reinforcing bars should extend an anchorage length beyond the edges of the hole.

4. Holes over 500mm square up to 700mm square will require the following additional reinforcement trimming if support beams are not provided.

a. One T 25 bar in each trough either side of the hole (or multiple smaller bars giving the equivalent area).

b. One T 25 bar across each end of the hole on the deck transverse to the span (or multiple smaller bars giving equivalent area).

c. Where the slab thickness is less than 200mm, provide one T 25 bar diagonally across each corner of the opening between the bottom transverse bars and the mesh (or multiple smaller bars giving equivalent area).

d. Where the slab thickness is greater than or equal to 200mm provide one T 25 bar diagonally across each corner of the opening both immediately above the bottom transverse bars and also under the top mesh (or multiple smaller bars giving equivalent area).

e. Three additional high yield bars of the same diameter as the mesh across each edge of the hole at mesh level.

5. Holes over 700mm square will require trimming support beams around the opening.


Do I Need to Prop?Decking is usually designed and sized to be self supporting during the construction stage where the deck alone supports the weight of the wet concrete and construction loads. Temporary props are only required where the actual deck support centres exceed the construction stage performance of the deck as shown in the tables on page 111.

There may be small areas of floor in a building where propping is required even though the rest of the floor remains unpropped – typically these areas that require props include:-– Decking bays where infill is required after the removal of the

tower crane. Often the deck will be in single span lengths.– Lobby areas around lift shafts where the deck may have

to be laid single span to fit in with the layout.

If longer spans and / or thicker slab than those shown in the tables on page 113 are required the Multideck 146 should be propped at mid span. Alternatively use the Multideck software to confirm the requirements.

Other Requirements for PropsProps may also be required to support side and end trims where the outstand is greater than the limits shown in this literature. Where the end of the deck abuts in-situ concrete and there is no permanent support for the end of the deck. Or where the deck cantilevers beyond the support for a distance exceeding the deck capacity shown in this literature.

Layout and Location of PropsThe deck layout drawing should show the location and extent of props to the deck. If there is any doubt on the requirement for props consult the span tables on page 111 or use the Multideck software.

Normally props are positioned at mid span (one line of props) or third points (two lines of props) within the span.

Props normally consist of lengths of timber bearer and / or steel runners placed directly below the deck and supported on adjustable steel tubes (Acrows). The width of the timber and or steel plates should provide sufficient bearing area – as a guide that would be between 75 and 100mm. The decking sheets must never be cut at the location of the temporary support nor should the deck be fixed to the temporary support.

The bearer must be continuous and extend for the width of the bay. Discrete props and packs should not be used. The bearer should be supported by Acrows at approx 1.0m c/c spaced equally along the line of the prop and be suitably braced. All props must be adequately founded to support the loads that will be applied.

Where props are being used to facilitate large spans it may be necessary to have the props in place before laying the deck to facilitate a safe working environment.

A typical temporary support is shown in the detail below. Props in this arrangement are generally placed at 1.0m c/c according to the designers requirements.

The design and provision of props is the responsibility of others.

Note:We recommend that temporary supports are braced in both directions for safety.

Sitework Multideck 50 / 60 / 80 – Temporary Supports


Use the tables below to determine if props are required for a given condition. If the span shown in the table is greater than the actual span on site, no temporary supports are needed. If the span shown in the table is less than your actual span, temporary supports are required.

Determining the propping requirements is generally the responsibility of the structural designer when specifying a composite slab. If it is subsequently ascertained that propping is required, to ensure that the completed slab can withstand the additional load from the removal of the prop, the structural engineer must be consulted.

Normal Weight Concrete


Slab Depth(mm)

Multideck 50-V3 Multideck 60-V2 Multideck 80-V2Gauge – mm Gauge – mm Gauge – mm

0.85 0.9 1.0 1.1 1.2 0.9 1.0 1.1 1.2 1.0 1.1 1.2100 3.02 3.17 3.30 3.40 3.50 – – – – – – –110 2.94 3.08 3.22 3.31 3.42 – – – – – – –120 2.87 3.01 3.14 3.24 3.33 3.26 3.39 3.52 3.62 – – –130 2.78 2.94 3.07 3.16 3.25 3.15 3.28 3.40 3.50 4.03 4.13 4.22140 2.71 2.88 3.00 3.10 3.19 3.06 3.18 3.30 3.39 3.93 4.03 4.11150 2.63 2.82 2.94 3.04 3.12 2.97 3.09 3.21 3.30 3.84 3.93 4.02160 2.58 2.77 2.89 2.98 3.07 2.90 3.01 3.12 3.21 3.75 3.85 3.93175 2.49 2.70 2.81 2.90 2.99 2.79 2.91 3.02 3.10 3.65 3.74 3.82200 2.36 2.59 2.70 2.86 2.87 2.63 2.76 2.86 2.95 3.45 3.58 3.66250 2.16 2.38 2.53 2.61 2.69 2.37 2.54 2.63 2.71 3.16 3.27 3.37100 3.31 3.59 3.85 4.08 4.19 – – – – – – –110 3.21 3.49 3.74 3.97 4.12 – – – – – – –120 3.13 2.40 3.64 3.87 4.03 3.52 3.81 4.09 4.34 – – –130 3.05 3.32 3.55 3.77 3.95 3.42 3.70 3.97 4.21 4.53 4.83 5.11140 2.97 3.24 3.47 3.68 3.87 3.32 3.60 3.86 4.10 4.39 4.68 4.95150 2.89 3.17 3.39 3.59 3.78 3.24 3.51 3.76 4.00 4.26 4.54 4.81160 2.81 3.10 3.32 3.52 3.70 3.16 3.43 3.67 3.90 4.15 4.42 4.68175 2.71 3.00 3.22 3.40 3.59 3.05 3.31 3.55 3.76 3.99 4.25 4.50200 2.57 2.84 3.07 3.26 3.42 2.87 3.14 3.36 3.57 3.76 4.01 4.24250 2.35 2.58 2.80 2.99 3.13 2.58 2.84 3.07 3.26 3.46 3.62 3.84

Lightweight Concrete


Slab Depth(mm)

Multideck 50-V3 Multideck 60-V2 Multideck 80-V2Gauge – mm Gauge – mm Gauge – mm

0.85 0.9 1.0 1.1 1.2 0.9 1.0 1.1 1.2 1.0 1.1 1.2100 3.22 3.38 3.52 3.62 3.72 – – – – – – –110 3.14 3.29 3.43 3.54 3.63 – – – – – – –120 3.06 3.21 3.35 3.45 3.55 3.46 3.64 3.74 3.82 – – –130 3.00 3.15 3.28 3.38 3.48 3.37 3.52 3.65 3.72 4.25 4.36 4.45140 2.94 3.08 3.21 3.31 3.40 3.28 3.42 3.54 3.64 4.14 4.25 4.34150 2.87 3.02 3.15 3.25 3.34 3.19 3.32 3.44 3.54 4.05 4.15 4.24160 2.80 2.96 3.09 3.19 3.28 3.11 3.24 3.36 3.45 3.96 4.06 4.15175 2.71 2.89 3.01 3.12 3.21 3.01 3.13 3.24 3.34 3.85 3.95 4.03200 2.58 2.78 2.90 3.00 3.08 2.86 2.97 3.08 3.17 3.69 3.79 3.87250 2.36 2.60 2.71 2.80 2.94 2.60 2.74 2.84 2.92 3.40 3.52 3.62100 3.51 3.76 3.83 3.89 3.95 – – – – – – –110 3.42 3.71 3.98 4.22 4.28 – – – – – – –120 3.34 3.63 3.89 4.12 4.25 3.72 4.04 4.33 4.59 – – –130 3.26 3.54 3.79 4.03 4.17 3.63 3.93 4.24 4.47 4.81 5.12 5.42140 3.19 3.47 3.72 3.94 4.10 3.54 3.84 4.11 4.36 4.67 4.98 5.27150 3.13 3.40 3.64 3.86 4.03 3.45 3.75 4.02 4.26 4.55 4.85 5.13160 3.06 3.33 3.57 3.79 3.97 3.38 3.66 3.93 4.17 4.44 4.73 5.00175 2.96 3.24 3.47 3.68 3.87 3.27 3.55 3.81 4.04 4.28 4.56 4.83200 2.81 3.10 3.32 3.52 3.70 3.12 3.38 3.62 3.85 4.06 4.32 4.58250 2.57 2.84 3.07 3.26 3.43 2.83 3.10 3.33 3.53 3.70 3.94 4.17

Notes:1. Temporary supports should remain in place until the concrete has achieved 75% of its 28 day cube strength often available after 7 days.

Where crack control is essential, props should not be removed until the concrete has achieved its specified design strength.2. Span values are based on 100mm minimum support widths.


Do I Need to Prop?Multideck 146 is designed as single span with a capacity of 6.0m plus and as such does not normally require temporary supports during the construction stage.

There may be cases where longer spans are required and the deck can be propped during the construction stage. Load tables are shown for the Multideck 146 1.5mm gauge propped construction.

The requirement for temporary support must be clearly shown and identified on the drawings of the deck layout. Provision of props to deck, that was not intended to be propped, should be checked with the engineer as the composite stage capacity can be reduced.

If temporary supports are required, they should be provided at mid span of the Multideck 146 so that the span either side of the prop is equal. The decking sheets must never be cut at the location of temporary support and the deck should not be fixed to the temporary support.

Temporary supports should continuously support the underside of the deck and are normally lengths of timber or steel beams supported by adjustable steel tubes (‘Acrows’). The width of the temporary support on which the deck sits should not be less than 100mm and should extend for the full width of the bay of deck and be suitably braced. Discrete props and packs should not be used.

It may be necessary to put the temporary supports in place prior to laying of the deck.

The support of the prop at the base must always be considered for strength and stability, taking account of the weight of wet concrete and construction loads.

The design and provision of props is the responsibility of others.

A typical temporary support is shown in detail below.

Sitework Multideck 146 – Temporary Supports

Note:We recommend that temporary supports are braced in both directions for safety.


Use the tables below to determine if props are required for a given condition. If the span shown in the table is less than the actual span temporary supports are required.

Determining the propping requirements is generally the responsibility of the structural designer when specifying a composite slab. If it is subsequently ascertained that propping is required, to ensure that the completed slab can withstand the additional load from the removal of the prop, the structural engineer must be consulted.

Normal Weight Concrete – Maximum Spans without Props


Slab Depth(mm)

Gauge – mm1.2 1.5

215 5.74 6.07225 5.67 6.00235 5.58 5.92245 5.50 5.85255 5.43 5.77265 5.35 5.70275 5.30 5.63285 5.24 5.57295 5.17 5.51305 5.08 5.46

Lightweight Concrete – Maximum Spans without Props


Slab Depth(mm)

Gauge – mm1.2 1.5

215 6.06 6.44225 5.97 6.34235 5.89 6.25245 5.81 6.14255 5.75 6.09265 5.66 5.98275 5.60 5.95285 5.54 5.89295 5.49 5.82305 5.42 5.75

Notes:1. Temporary supports should remain in place until the concrete has achieved 75% of its 28 day cube strength often available after 7 days.

Where crack control is essential, props should not be removed until the concrete has achieved its specified design strength.2. Access equipment should not be operated while the deck is propped.


Kingspan supply the Multideck product for use with in-situ placed concrete to create a composite concrete slab. As such it is important that the concrete and its placement meet the minimum requirements to achieve a quality product.

Concrete should be specified, supplied and assessed in accordance with the requirements of BS8500.

Concrete

Minimum concrete strengthThe load tables in this literature assume a minimum concrete strength of C25/30 with a minimum cube strength of 30N/mm2 at 28 days.

The Multideck design software allows designs with concrete cube strengths from 25 to 50N/mm2 with a default of 30N/mm2. The concrete supplied on site must meet or exceed the minimum design values used.

ConsistenceConcrete is normally pumped on to the deck and it should have a suitable consistency to allow placement without heaping of the concrete on the deck. The consistency of the concrete should be specified by the concrete contractor. Typical values are S2 or S3.

The use of Bekaert’s Dramix steel fibre in the concrete will require consideration of the mix design to create a suitable consistency – the concrete contractor should seek guidance from Bekaert if they do not have previous experience in the use of Dramix steel fibre reinforced concrete.

Self Compacting ConcreteMay be used with Multideck products – advice should be sought from the ready mix supplier as to suitable grades and slump flow test values to be used.

Care must be taken to account for the deflection of the deck and supporting beams resulting in a thicker slab, as the self compacting concrete will flow to a level. The additional concrete depth should be taken in to account in the construction stage design of the Multideck.

Concrete placementConcrete can be conveniently placed by pump either mobile or for very high multi-story buildings by fixed pumps.

Where the pump line is laid across the deck its weight should be adequately dispersed by spreaders to avoid damaging the deck.

Ideally the concrete should be discharged on to the deck at a beam support position with the concrete being moved and spread out as quickly as possible to avoid heaping which may overload the Multideck. The concrete discharge pipe should be held horizontally so that the concrete is not discharged vertically and the height of discharge should be kept to a minimum to avoid damage to the deck by the impact load from the wet concrete.

Further GuidanceFor further guidance on concrete placement , and composite slabs on Multideck see The SCI / MCRMA publication 300 ‘Composite Slabs and beams using steel decking’.

The good concrete guide No 5 ‘Composite concrete slabs on steel decking’.

BCSA Code of Practice for Metal Decking and Stud Welding.


Estimating Concrete Volumes

Slab Depth(mm)

Multideck 50-V3 Multideck 60-V2 Multideck 80-V2Slab Depth

(mm)

Multideck 146

Concrete Volume (m3 / m2)

Concrete Volume (m3 / m2)

100 0.091 – – 215 0.128110 0.101 – – 225 0.138120 0.111 0.085 – 235 0.148125 0.116 – – 245 0.158130 0.121 0.095 0.082 255 0.168140 0.131 0.105 0.092 265 0.178150 0.141 0.115 0.102 275 0.188160 0.151 0.125 0.112 285 0.198170 0.161 – – 295 0.208175 – 0.140 0.127 305 0.218200 0.191 0.165 0.152 – –250 0.241 0.215 0.202 – –

Volumes of concrete shown are for the nominal slab depth as shown in the table. To take account of deck deflection an additional allowance of span (mm) / 285,000 = m3/mm2 should be added.

Consideration should be given to the support deflection (beam) and an allowance included in the volume of concrete required.

Multideck Design Software allows consideration of beam deflection.

Span

1/3 Span Max.

ConcreteSite constructed joint

Preferred position of day joint

Deck butt joint

Deck

Permanent steel support

Day joints in the concrete slab should be placed as close as possible to the butt joint in the Multideck over the support, but clear and leaving uncast any shear studs where the Multideck is supported on a steel beam. Keeping the shear studs clear from the day joint avoids the studs being preloaded when the other side of the slab is subsequently cast.

Where it is not possible to cast the day joint close to the Multideck butt joint no more than one third of the sheet should be left un-poured.

Day Joints

Timber, foam or proprietary closures should be provided by the concrete contractor to fit the profile and form the day joint stop.

If the slab is reinforced with Dramix Steel fibre additional continuity bar reinforcement should be provided at the day joint.


Concrete

Multideck Primary reinforcement Where the slab is designed as composite it is the Multideck that provides all of the tensile reinforcement for the slab. The mechanical shear keys formed in to the webs and ribs of the Multideck product lock the concrete and deck together. Performance values are derived from testing.

Mesh reinforcement Mesh reinforcement is required to control cracking that can occur in the concrete due to shrinkage or other induced tensile stresses in the concrete. The composite slab loading case is generally designed as a single span and where the concrete is continuous a light mesh reinforcement is provided over the supports to control possible cracking.

BS EN 5950 part 4 suggest that the minimum mash area is a 0.1% of the cross sectional area of the concrete slab at the support.

Top mesh should be placed in a zone of 15 to 40mm from the top surface of the slab.

Additional mesh reinforcement may be needed at positions of concentrated loads i.e. point or line loading, BS EN 5950 provides guidance on minimum values to adopt.

These secondary reinforcements are normally placed on the top of the deck so deeper slabs may require two layers of reinforcement in specific areas.

The engineer should consider increasing the mesh area where:– The slab is propped during construction– The size of any cracks in the slab need to be controlled – Brittle finishes are applied to the slab surface – Moving wheel or point loads are applied to the slab

Mesh sheets must be over lapped, use of flying ends make overlapping easier and avoids build up of the mesh thickness at laps.

The mesh should be supported on a suitable mesh stools to maintain the required position during the concrete pour.

ReinforcementConcrete is a brittle material strong in compression but weak in tension and as such must be reinforced with a material that can provide tensile strength and ductility. The most common reinforcement material is steel.

Bar reinforcementBar reinforcement is some times required with Multideck composite slabs.

Where the fire period combined with the applied loading exceeds the slab performance using mesh, then, addition bar reinforcement can be used to provide a solution. The Multideck design software offers a full range of ‘A’ mesh and bar reinforcement combinations.

MD146 long spanning deck requires a minimum of one 16 dia. bar reinforcement per trough for all load cases.

Bar reinforcement should be supported on suitable bar stools or wired from the mesh so that the bar is located in the correct height and position in the slab as shown in the design.

U bars are required around shear studs on composite edge beams to avoid splitting of the concrete at the composite edge beam.

Dramix Steel fibres The use of Dramix steel fibres can replace mesh reinforcement in Multideck 50-V3 , 60-V2 and 80-V2, composite slabs providing the structural performance documented in this literature.

See specifically page 118 to 119 and the general section for each deck.


Multideck was used in the construction of the Reghed Visitor Centre, Cumbria, UK. Photo Courtesy of MSW (UK) Ltd.


Concrete – Kingspan Multideck and Bekaert Composite Slab

Dramix® eliminates the need to buy, transport, store, crane and fix mesh.

Dramix® Steel Fibre Concrete, has been used worldwide in groundworks, for many years. Following extensive test work and analysis by Kingspan Structural Products, Bekaert and the Steel Construction Institute, it is now available for multi-storey applications. Dramix steel fibres have been proven to achieve a full fire performance, see pages 28 to 30 (Multideck 50-V3), pages 46 to 50 (Multideck 60-V2) and pages 64 to 65 (Multideck 80-V2).

The use of a Dramix® Steel Fibre reinforced Concrete slab provides a ‘pre-reinforced’ concrete slab.

Benefits of Multideck with Dramix® Steel Fibres:-– Pre-reinforced concrete eliminates mesh– Savings include:- Time on site

No design No drawing No scheduling No transportation No lifting / off-loading No laying Reduction in crane hire

Other benefits include:-– Earlier project completion – Proven 1 hour, 1.5 and 2.0 hour fire rating– Structural design information developed by the Steel

Construction Institute (SCI)– Full depth reinforcement offers excellent crack control– Design advice and assistance– Minimises site handling– Reduces site congestion– Minimises crane lifts– Reduces tripping hazards

1. Steel fibres added to hopper

2. Fibres mix perfectly with concrete

3. Concrete pumped into position

4. Mixture spread onto deck

5. No mesh means no tripping hazard

6. Mixture floated off

7. Floating provides a smooth finish

8. Floor completed in double quick time


Multideck 50-V3Fire performance for 1, 1.5 and 2 hours. Multideck 50-V3 has been tested with the new Dramix® steel fibres.




Dramix® Steel FibresDramix® Steel Fibres are made from prime quality hard-drawn steel-wire to ensure high tensile strength and close tolerances.

Dramix® Steel Fibres are added to the concrete during mixing. The gluing of the fibres into bundles guarantees quick and easy mixing with perfectly homogeneous distribution. The hooked ends slowly deforms during pull-out and is generally considered as the best form of anchorage. Dramix® steel fibres are manufactured in accordance with BS EN ISO 9001:2008 (the dramix steel fibre specifications were previously referenced RC-80/60-BN and RC-65/60-BN).

Shear Strength The shear resistance of Dramix® concrete reinforced with a dosage of 20kg/m3 3D-80/60-BG / 30kg/m3 3D-65/60-BG exceeds that of mesh reinforced concrete. This means that codified checks for longitudinal shear can be adopted and will not penalise fibre reinforced slabs. For 30kg/m3 the area of fibres crossing a shear plane may be taken as 0.37% of the concrete area.

Shear Stud Capacities The SCI has established the following design information relating to shear stud strengths from the test data:– In order to design studs embedded in fibre reinforced

concrete with a dosage of 20kg/m3 of Dramix® 3D-80/60-BG or 30kg/m3 of Dramix® 3D-65/60-BG fibres in accordance with BS 5950-3.1:1990 no shear stud strength reduction factor is applicable.

– In order to design studs embedded in fibre reinforced concrete with a dosage of 20 kg/m3 of Dramix® 3D-80/60-BG or 30 kg/m3 of Dramix® 3D-65/60-BG fibres in accordance with BS DD ENV 1994 Part 2: 2001 no shear stud strength reduction factor is applicable.

Concrete – Kingspan Multideck and Bekaert Composite Slab

Recommendations When Mixing1. General – Preferably use a central batching plant mixer when

adding Dramix® Steel Fibres into concrete. – A continuous grading is preferred. – Mix until all glued fibres are separated into individual fibres.

Fibres don’t increase mixing time significantly.– If special cements or admixtures are used, a preliminary

test is recommended.

2. Fibre Addition2.1. In batching plant mixer.– Never add fibres as first component in the mixer– Fibres can be introduced together with sand and aggregates,

or can be added in freshly mixed concrete– Only for drummixer: unopened degradable bags can be

thrown directly in the mixer

2.2. Truckmixer– Add Dramix® as the final component into the back

of the mixer truck– Run mixer at drum speed: 12-18rpm– Adjust slump to a min. of 12cm (preferably with water

reducing agents or high water reducing agents)– Add fibres with maximum speed of 40kg/min– Optional equipment: belt-hoist elevator– After adding the fibres, continue mixing at highest

speed for 4-5 min

2.3. Automatic dosing– Fibres can be dosed from bulk at rates up to 3.5kg/sec with

a specially developed dosing equipment

Should you require further information please contact Bekaert for:– Composite slab design– Dramix® Steel Fibres data sheet

3D-80/60-BG / 3D-65/60-BG– Fire test report– Composite slab load-span tables– Composite slab fire resistance tables– SCI reports


Technical SupportTechnical support in the development of the Dramix® composite floor load-span tables was provided by the SCI.

Fire Test ReportFire resistance test in accordance with BS 476-21:1987 Clause 7 on a load bearing Dramix® composite floor and Kingspan Multideck. Information is available from Bekaert on request.

Bekaert Building Products LtdPark House Road Low Moor Bradford BD12 0QBT: +44 (0) 1274 696700F: +44 (0) 1274 673378www.bekaert.com


Multi-storey and Below Ground Car Parks – Composite Metaldeck Floor SlabsCar parking provision has become a vital part of urban planning, especially in Metropolitan areas at commercial, retail and transport hubs. Multi-storey car park structures provide an economical solution where land is at a premium either for a build above or below ground.

Successful parking structures will be designed to meet users demands – high on that list are feeling safe and secure and that their vehicle and contents are secure – given the choice, people will use parking structures that are light and bright and feel secure.

Multi-storey car parks have by their very nature a more corrosive environment which can cause challenges in selecting suitable products that will perform in the longer term and offer a low maintenance requirement over time.

The air within the car park is often contaminated with fumes from car engines, the floor slab can be sprayed with water from wet cars and during winter periods de-icing salts and other corrosive elements can be tracked into the car park and be deposited on the concrete slab.

Some multi-storey car parks mitigate the fumes by having open elevations – but this has a tendency to mingle external air, which can be damp and also polluted, with the engine fumes creating a more corrosive environment for the structure.

On the corrosion scale car parks are often classed at C3 – C4 as identified in ISO 9223, where C5 is generally the highest corrosion class.

If no roof structure is provided, so the top parking deck is open to the elements then the slab will be exposed to the full rigor of the weather which can adversely attack the exposed concrete slab if not protected adequitly.

Below ground car parks are a popular solution at major retail and commercial developments offering design options where the developments foot print is limited. Below ground car parks have the additional issue of suitable ventilation to mitigate the build-up of fumes both for the wellbeing of the car park users as well as mitigating the corrosion effect of the structure. In below ground parking structures the brightness and lightness and soffit height are doubly important for feelings of wellbeing.

Composite Slab Construction The use of Kingspan Multideck metal deck composite floor slabs provides a proven, rapid and cost effective solution when used with steel or concrete framed parking structures. But given the corrosive nature of the internal environment, selection of the deck and consideration of the right combination of concrete + finishes is important for low maintenance in use.

Multideck XP Multideck XP is the newest addition to our Multideck range of composite steel decking systems. It combines the benefits of a strong trapezoidal-profiled sheet utilizing high strength steel to give economic spans with the latest development in metallic coating to provide an enhanced corrosion protection extending the products life in corrosive environments.

The high strength steel core of Multideck XP is protected by a 310 gram/m2 coating of Magnelis® from ArcelorMittal. The Magnelis® metallic coating has a unique blend of Magnesium, Aluminium and Zinc to create an enhanced corrosion performance especially in aggressive environments contaminated with chloride or highly alkaline. So is ideally suited to protect the exposed steel surface of the Multideck XP composite metal deck used in car park floor slab.

The Multideck XP range suitable for car park floor slabs comprises.

Multideck XP 50, Multideck XP 60, Multideck XP 80 and Multideck XP 146 all come in a range of gauges to give economical span solution with low maintenance.

The same flat samples were also compared in a cylic corrosion test (3CT) according to VDA 621-415.

Magnelis® 20 microns

Galvanised 20 microns

Car Park Solutions

Multideck 80 Multideck 146

Multideck 60Multideck 50


The MD206C slab can clear span up to 5.7m which is often sufficient for a two car bay layout of the supporting beams.

The progressively deeper (50, 60, 80, 146mm) Multideck XP profiles offer increasing spanning capability, while limiting the overall depth of the slab. This combination gives a very economical solution in terms of concrete usage and slab depth in most cases of car park bay size and the spacing of the supporting structure. The deepest, Multideck 146 profile will provide 6.0m clear spans while supporting a 215mm deep slab.

Multideck XP Powder Coated Soffit – Choice of RAL Where a coloured soffit is required to the underside of the floor slab for reflectivity, Kingspan can provide a powder coated finish to the under side of the deck using its own in house powder coating line, which allows a better control of quality and supply – a range of RAL colours are available but the most popular choice is white for reflectivity. Painted soffit deck is delivered in protective wrap to ensure a quality finish delivered to site.

Multideck Z275 Zinc Coating The standard Multideck product MD50, MD60, MD80, MD146 can all be used in structures for car parking but requires careful attention to the protection of all the exposed concrete surfaces of the slab.

The top surface of the concrete must be protected with an impervious layer that is crack bridging. All joints of the floor slab at columns, edges, upstands must be sealed with a sufficient flexibility and crack bridging coating so there is no possibility of the ingress of moisture and contaminants, to avoid subsequent damage to the reinforcement in the concrete and the reverse face of the Multideck.

The external soffit of the Multideck must be protected either by the Kingspan powder coated option or an on-site applied paint coating which can be maintained.

Multideck MD206C A special deep deck trapezoidal profile with a pre-applied paint coating on top of a zinc coating to both the exposed soffit and the reverse deck face in contact with the concrete.

The advantage of the MD206C product is the very shallow slab depth over the top of the supporting steel beams of only 80mm. This shallow depth is possible due to the patented support system that allows the majority of the deck & concrete slab depth to be supported between the main steel beams.

Concrete Slab and Embedded Steel Reinforcement Protection The concrete within a car park is particularly susceptible to corrosion attack and deterioration.

Unprotected concrete is porous and with the possibility of cracks forming there is a ready path for the ingress of moisture and contaminates that will attack the embedded steel reinforcement and the reverse face of the composite metal deck. Both the steel reinforcement and the reverse face of the deck cannot be maintained during the life of the structure so it vital to specify robust water proofing systems.

It is vital to have a robust design solution for the concrete slab. By specifying a higher strength and grade XD3 concrete with adequate embedded reinforcement, and/or specifying adequate barrier layers and coatings to all the concrete surfaces.

The top surface of the concrete must be protected with an impervious layer that is crack bridging. All joints of the floor slab at columns, edges, upstands must be sealed with a sufficiently flexible and crack bridging coating. So there is no possibility of the ingress of moisture and contaminants in to the slab.

With all parking floor slabs it is necessary to include adequate falls and drainage so that polluted water does not stand on the slab surface.

Manufactures guidance should be followed for the correct choice of product application and maintenance.


QuotationsKingspan Structural Products can provide quotations for the supply of Multideck on receipt of clients structural detail drawings and / or specifications with bills of quantities.

DeliveryDelivery of Multideck is made direct to site and phased in accordance with clients erection programme whenever possible. Delivery is made using Kingspan’s own transport for off loading by others.

PackingMultideck is supplied and packed in accordance with users requirements in bundles of up to 1.5 tonnes banded with steel straps on timber packers at regular intervals to prevent damage during transport.

AvailabilityKingspan Multideck is usually available on a 7 day delivery on receipt of cutting list, however please check before ordering as this can vary with demand.

Estimating and Ordering

ContactPlease contact Kingspan Sales Department on:Tel 01944 712000 or Fax 01944 710830 email: [email protected].

Rake CuttingPre-delivery cutting of sections is available. Please contact our Sales Department for details.

Order FormsTo simplify manual detailing and reduce the possibility of omissions we strongly advise the use of Kingspan order forms. This will ensure smooth processing of you order. Examples are shown full size (see pages 134 to 137).

These can be photocopied on a light setting to remove the example and used as actual order forms.

Please state all dimensions in millimetres and use one sheet per section depth when ordering several section sizes together.


Kingspan Toolkit software has become the leading cold rolled steel purlins, rails, channels and composite deck design software in the industry. It is now used by over 1500 practices in the UK and includes the design of cold rolled steel products, CAD details and much more.

Design Software

Toolkit 8It provides design solutions to both British Standards (BS) and Eurocodes (EC) for Multibeam and Multichannel purlins and rails, in the same software package.Note: users should regularly clear there browser cache to ensure they are using the latest software version. Contact your IT team for assistance. Details of software updates are shown on the software login page of our web site.

Toolkit 8 includes:– Interactive mapping including a ‘site look up’ facility for

automated snow and wind loading calculations.– Wind loading to BS EN 1991-1-4 with UK national annexes

or BS6399-2.– Calculation of wind loads on buildings and structures.– Design wind speeds and dynamic pressures automation.– Automatic determination of ground roughness, altitude and

topography factors.– Automatic site exposure calculation to give optimum results.– Site parameters override to enable use in other global

locations.– Snow loading to BS EN 1991-1-3 with UK national annexes

or BS6399-3.– Enhanced analysis of snow and service loading.– Full set of load combination and partial load factors

to BS and EC.

Toolkit 7This design software is still available and can be downloaded to your PC.

Please note: new Toolkit users must also download a Toolkit 7 patch and the Multideck stand alone software.

Toolkit 7 includes the design software for:– Multideck composite floor systems (see above regarding

updated version).– Multichannel rails, Mezzanine floor joists, single and

compound stanchions, and posts.– Multibeam purlins and side rails to British Standards including

BreVe wind analysis.– Detailing wizard for ordering and reviewing Multibeam and

Multichannel sections and components.– The content of Tekla detailing transfer.

On installing Toolkit 7, the system will prompt for a pass key for BreVe which is obtainable from Kingspan Structural Products. No key will be required if installing the Toolkit 7 patch.

MultideckWe have issued an update to the Multideck design software, which now includes the new, upgraded Multideck 50-V3 floor decking system (with gauges from 0.85mm to 1.2mm). Existing Toolkit 7 users - please install the new, stand-alone Multideck software to override your existing version. New users - please install both the Multideck and Toolkit 7 design software packages.

Kingspan Structural Products now offers a bespoke design service for Multideck composite steel decking systems, providing Eurocode designs to suit projects in the Republic of Ireland and the UK. To utilise this service please visit www.kingspanpanels.co.uk/structural/software/eurocode.

Composite Beam Design SoftwareKingspan Structural Products’ latest design software provides a simple online tool for the design of composite steel beams using it’s Multideck 50, Multideck 60 and Multideck 80 composite steel decking systems to meet the requirements of either BS EN 1994-1: 2004 (Eurocode 4) or BS 5950 Part 3 1990 + A1: 2010, using just one stud per trough in many design cases.

The new software offers design solutions for secondary beams supporting uniformly distributed loads and primary beams supporting point laods at both mid and third points of the span. During the construction stage the secondary beam compression flange is assumed to be fully restrained by the Multideck system, whilst the primary beam compression flange is assumed to be restrained at the relevant load application points.

Kingspan Structural Products – CPDKingspan Structural Products has developed a CPD Seminar which reviews the history of structural materials used in construction with particular focus on the evolution of steel.

The CPD discusses the different components used in steel structure and explores issues which may need to be considered when specifying structural materials. These include designing to Eurocodes or British Standards and the consideration of sustainability and Health & Safety. It also provides a comparison of cold rolled structural materials available in the current market, paying particular attention to different types of purlins.

For further information or to arrange a CPD please contact us on 01944 712000 or email [email protected]


Edge Trim Restraint Strap0.9mm galvanised steel 40mm wide in 3m lengths for cutting on site. Supplied by Kingspan Structural Products.

Shear StudKingspan recommend the use of Nelson studs. These are normally supplied by the fixing contractor. All shear studs should be low carbon steel with a minimum yield strength of 350 N/mm2 and an ultimate tensile strength of 450 N/mm2 minimum.

MD60-V2 – 95mm LAWMD80-V2 – 120mm LAWMD50-V3 – 95mm LAWMD146 – 195mm LAW

19mm

ClosuresEnd closure Pressed steel supplied by Kingspan Structural Products. Length 215mm

B

A

Dimension A87mm (for MD60-V2)67mm (for MD80-V2)100mm (for MD146)Dimension B67mm (for MD60-V2)87mm (for MD80-V2)158mm (for MD146)

Photo Courtesy of MSW (UK) Ltd.

Side closure Profile (A)1.2mm galvanised steel in 3m lengths. Supplied by Kingspan Structural Products.

180mm

90˚

135˚

20mm

180mm 20mm

30mm

40mm

MD146

MD50-V3, MD60-V2, MD80-V2

30

To suit slab

thickness

Variable

45˚

Slab Edge Trim1.2mm, 2mm and 2.7mm galv steel in 3m lengths for cutting on site. Supplied by Kingspan Structural Products.

Accessories


For availability and installation please contact: Lindapter, Bradford, West Yorkshire. Tel: 01274 521 444 Fax: 01274 521 130 General enquiries: [email protected] Technical support: [email protected] Web: www.lindapter.com

For Multiwedge 2 capacities and installation details see opposite.

AccessoriesMultideck 50-V3Suspension Systems

A suspension system is available for Multideck 50-V3 profiles. The Type VN10 is a heavy duty suspension method for pipework, ducting, etc.

Type VN10Material: Mild steel, zinc platedRod min. 4.6: M10

SWL (FOS 4:1): 2.1 kN (tensile / 1 rod)


AccessoriesMultideck 60-V2 / 80-V2Suspension Systems

Type Multiwedge 2Material: Bracket: pre-galvanised strip Wedge: malleable iron, bright zinc plated

Rod min. 4.6: M6, M8, M10

SWL (FOS 3:1): 1.47 kN (tensile / 1 rod)

Grip

Grip

Multiwedge 2 Installation1) Pre-assemble the bracket

and wedge (flat surface facing up) onto the threaded rod and insert one side of the bracket into the re-entrant channel of the decking.

2) Click the other leg of the bracket into position inside the decking and slide the assembly to the desired position along the length of the re-entrant channel.

3) Push and turn the wedge clockwise until it locks into the channel walls.

4) Tighten the hexagon nut beneath the assembly.


IMPORTANT!

– Only use one threaded bar per fixing.– The decking must not be damaged and have a fully formed

re-entrant channel.– Ensure the cone point grub screw is fully engaged in to the

corner of the re-entrant channel.– Do not screw the threaded bar any further in than the top

surface of the fixing.– Ensure the fixing is a minimum 300mm from any edges of

the decking.

– One fixing suits seven most popular decking profiles– Allows for manufacturing tolerances in the deck profile– Single piece construction– Separate fixing screw to ease final adjustment– M06, M08 and M10 threaded fixing holes– Requires no site power or skilled labour– Tested at the British Board of Agrément– Material: SG (Ductile) Iron to BS EN 1563

Grade EN-GJS-450-10.– Finish: Zinc Plated to BS EN 12329:2000

Grade Fe//Zn5//A (Clear).

Uni-Wedge provides a solution to fix building services equipment without penetrating the decking membrane and simply requires a standard hexagon key and spanner with no requirement for power, special tools or highly skilled labour.

Uni-Wedge has a unique body style that allows it to fix to seven decking profiles, making it easy to use and specify. The specific type of decking is not always easy to identify on site and has caused installers problems when trying to acquire the correct fixing to use, but Uni-Wedge provides the ideal solution (see table below).

Uni-Wedge has been designed for the end user to ensure that whatever the situation the right connection can be made as quickly as possible.

Uni-Wedge has a fixing screw that is assembled in the body and provides a positive location in the decking re-entrant channel. This screw is assembled as standard in position 1 but can easily be removed and placed in to position 2 to suit the other decking profiles, see table below:

Decking Type Screw Position Tensile SWL (kN) (3 to 1 Factor of Safety)

Use 4mm Hexagon Key to Tighten Grubscrew

Multideck 60-V2 / 80-V2 1 1.0 8

M10M08M06

31mm 44mm

12mm

Uniwedge is manufactured by: Beamclamp Tel: 01384 632 386 Fax: 01384 632 384 Email: [email protected] Web: www.beamclamp.com

For Multiwedge capacities and installation details see page 129.

Accessories– Multideck 60-V2 / 80-V2Uni-Wedge Universal Clamp


Strut support for cable tray

Suspended ceiling detail using hook bolts

Typical pipe supports

1. Select the correct position for the grub screw to suit the decking profile as shown above position 1 or 2.

3. Tighten the grub screw to secure the fixing. We recommend a tightening torque of 8Nm to achieve a guaranteed SWL.

2. Insert Uni-Wedge in to the re-entrant channel of the deck. Ensure the point of the grub screw is not exposed at the top of the hole as this will stop Uni-Wedge fitting.

4. Once the grub screw is secured one of the M06, M08 or M10 threaded holes can be fixed to. This may be threaded bar, eyebolts, J-bolts or any other threaded items used for suspending building services. We always recommend the threaded item is locked in to position using a lock nut to the underside of Uni-Wedge.

Uni-Wedge Installation

Uni-Wedge Applications

Position 1

Position 2


BS 476: Fire tests. Part 4 1970 Fire tests on building materials and structures. Part 8 1972 Test methods and criteria for the fire resistance of elements of building construction. Part 21 1987 Clause 7 Fire tests on building materials and structures. Methods for determination of the fire resistance of loadbearing elements of construction.

BS 1449: Part 1 Specification for carbon and carbon-manganese plate, sheet and strip.

BS 1494: Part 1 1964 Fixing accessories for building purposes – sheet, roof and wall coverings.

BS 1881: Part 1 1964 (1988) Protection of iron and steel by aluminium and zinc against atmospheric corrosion. Part 2 1965 (1988) Protection of iron and steel against corrosion and oxidisation at elevated temperatures.

BS 3963: 1974 (1980) Method for testing the mixing performance of concrete mixers.

BS 4078: Cartridge Tools. Part 1 1987 Part 2 1989

BS 4174: 1972 Self-tapping screws and metallic drive screws.

BS 4449: 2005 Specification for carbon steel bars for the reinforcement of concrete.

BS 4483: 2005 Specification for steel fabric for the reinforcement of concrete.

BS 5328: Parts 1-4 Methods for specifying concrete, including ready-mixed concrete.

BS 5247: 1976 Code of practice for performance and loading criteria for profiled sheeting in building.

BS 5950: Design in composite construction. Part 3 Section 1:1990 Structural use of steelwork in building. Design in composite construction. Code of practice for design of simple and continuous composite beams. Part 4 1994 Code of Practice for design of floors with profiled steel sheeting. Part 6 1995 Code of practice for design of light gauge profiled sheeting. Part 8 2003 Code of practice for fire resistant design.

BS 6100: Glossary of building and civil engineering terms. Part 1 General and miscellaneous. Part 1.3 Parts of construction works. Part 1.3.3 Floors and ceilings. Part 6 Concrete and plaster. Part 6.1 Binders. Part 6.2 Concrete. Part 6.3 Aggregates.

BS 6399: Part 1 1984 Code of practice for dead and imposed loads.

BS 6687: 1986 Specification for electrolytically zinc coated steel flat rolled products.

BS 6830: 1987 Specification for continuously hot-dip aluminium / zinc alloy coated cold rolled carbon steel flat products.

BS 8000: Part 2 1990 Workmanship on building sites – concrete work.

BS 8110: Structural use of concrete. Part 1 1997 Code of practice for design and construction. Part 2 1985 Code of practice for special circumstances.

BS 8204: Structural use of concrete. Part 1 1987 Code of practice for concrete bases and screeds to receive in-situ flooring. Part 2 1987 Code of practice for concrete wearing surfaces.

BS EN ISO 9001:2008 Quality management systems. Requirements.

BS EN 10002: Part 1 1990 Method for tensile testing of metals.

BS EN 10143: 1993 Continuously hot-dip metal coated steel sheet and strip – tolerances on dimensions and shape.

BS EN 10147: 2000 Continuously hot-dip zinc coated structural steel sheet and strip – technical deliver conditions.

BS DD ENV 1994 Part 2:2001 Eurocode 4. Design of composite steel and concrete structures. Composite bridges.

References

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Multideck 50-V3

Multideck 60-V2

Topic PageDimensions 12Embossments 12End Detail 86End Detail Cantilever 86Features and Applications 12Fire Resistance 21Intermediate Beam – Change in Direction of Lay 88Intermediate Beam – Change in Direction of Lay with Ledger Angle 89Intermediate Beam Detail 87Load Tables – Dramix® Reinforced Concrete 28 Lightweight Concrete 18

Topic PageAccessories 127British Standards 133Concrete Requirements 114Day Joints 115Design Software 125Dramix® Steel Fibres 118Estimating and Ordering 124Forming Holes 109Kingspan Company 6Minimum Bearing Surfaces 96

Topic PageOrder Forms 134Ordering and Detailing 125Pack Identification 102Primary Fixings 104Propping 110Shear Studs 106Site Handling 100Temporary Supports 111Weights 101

Topic PageLoad Tables – Lightweight Concrete 1 – 1.5 – 2 hour fire rating 25 Normal Weight Concrete 15 Normal Weight Concrete 1 – 1.5 – 2 hour fire rating 22Maximum Edge Trim Cantilevers 85Profile 12Reinforcement 12Section Properties 13Side Detail 84Side Detail Alternative 84Side Detail with Cantilever 85Sound Attenuation 31Specification 12Suspension Systems 128Volumes and Weights 13

Topic PageDimensions 34Embossments 34End Detail Cantilever 92End Detail using End Closure 92Features and Applications 34Fire Resistance 43Intermediate Beam – Change in Direction of Lay 93Intermediate Beam – Change in Direction of Lay with Ledger Angle 94Intermediate Beam using Closure Trim 93Load Tables – Dramix® Reinforced Normal Weight Concrete (30kg/m3 3D-65/60-BG) 46 Dramix® Reinforced Normal Weight Concrete (20kg/m3 3D-80/60-BG) 48 Lightweight Concrete 40

Topic PageLoad Tables – Lightweight Concrete 1 – 1.5 – 2 hour fire rating 45 Normal Weight Concrete 38 Normal Weight Concrete 1 – 1.5 – 2 hour fire rating 44Maximum Edge Trim Cantilevers 90Profile 34Reinforcement 34Section Properties 35Side Detail 90Side Detail – Cut to Width 91Side Detail using Closure Trim 91Sound Attenuation 51Specification 34Suspension Systems 129Volumes and Weights 35

Multideck Index


Multideck 80-V2

Multideck 146

Topic PageLoad Tables – Normal Weight Concrete 58 Normal Weight Concrete 1 – 1.5 hour fire rating 63Maximum Edge Trim Cantilevers 90Profile 54Reinforcement 54Section Properties 54Side Detail 90Side Detail – Cut to Width 91Side Detail using Closure Trim 91Sound Attenuation 66Specification 54Suspension Systems 129Volumes and Weights 55

Topic PageDimensions 70Embossments 70End Detail using End Closure 99End Detal Multideck Cantilever 99Features and Applications 70Fire Resistance 77Load Tables (Notes) 73Load Tables – Lightweight Concrete 75 Normal Weight Concrete 74 Fire Resistance 78Maximum Edge Trim Cantilevers 97Profile 70Reinforcement 72Section Properties 71Side Detail 97

Topic PageSide Detail using Closure Trim 98Side Detail – Multideck Cut to Width 98Sound Attenuation 82Specification 70Temporary Supports 112Volumes and Weights 71

Topic PageDimensions 54Embossments 54End Detail Cantilever 92End Detail using End Closure 92Features and Applications 54Fire Resistance 62Intermediate Beam – Change in Direction of Lay 93Intermediate Beam – Change in Direction of Lay with Ledger Angle 94Intermediate Beam using Closure Trim 93Load Tables – Dramix® Reinforced Normal

Weight Concrete 64 Lightweight Concrete 60 Lightweight Concrete 2.0 hour fire rating 63

UKKingspan Structural ProductsSherburn, Malton North Yorkshire, YO17 8PQ T: +44 (0) 1944 712000 F: +44 (0) 1944 710830 www.kingspanpanels.co.uk/structural

IrelandKingspan LimitedCarrickmacross RoadKingscourt, Co.CavanT: +353 (0) 42 969 8500

12/2018

For the product offering in other markets please contact your local sales representative or visit www.kingspan.com

Care has been taken to ensure that the contents of this publication are accurate, but Kingspan Limited and its subsidiary companies do not accept responsibility for errors or for information that is found to be misleading. Suggestions for, or description of, the end use or application of products or methods of working are for information only and Kingspan Limited and its subsidiaries accept no liability in respect thereof.

multideck technical handbookimages6.kingspanpanels.co.uk/file/asset/13181/original/...concrete...

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