technical mass 25 data sheet - mabey · document ref: tdsm25 page no. 3 of 19 the information on...

T E C H N I C A L D A T A S H E E T

Mass 25

Document Ref: TDSM25 Page No. 1 of 19 TH E IN FO R M ATIO N O N TH IS D ATA SH EET R EM AIN S TH E PR O PER TY O F M ABEY AN D IS N O T TO BE R EPR O D U C ED W ITH O U T W R ITTEN PER M ISS IO N . W E R ESER VE TH E R IG H T TO A M E N D TH IS D A TA A T A N Y T IM E W ITH O U T P R IO R N O TIC E A N D Y O U SH O U LD TH ER EFO R E C H EC K O U R W EBSITE TO ESTABL ISH ITS VAL ID ITY .

Issue No: 05 Further Information Tel: 800-956-2239 Issue Date: April 2015

w w w . m a b e y . c o m i n f o @ m a b e y . c o m 8 0 0 - 9 5 6 - 2 2 3 9

Technical

Data

Sheet

Mabey Inc. Telephone: 800-956-2239 Facsimile: 410-379-2801 Email: [email protected] Website: www.mabey.com

Mass 25


Mass 25




Index Reference Description Page No. Contents 2 1.0 Introduction 3 2.0 Section Properties, Capacities & Weights 4

2.1 Props 4 2.2 Grillage Beams 8 2.3 Truss Braces 10 2.4 Frame Braces 11 2.5 Angle Braces 12 2.6 Adjustable Ends & Fittings 13

3.0 Equipment List 17 4.0 Bolt Application Table 18

Contents


Mass 25




Application This Technical Data Sheet is designed to provide information of sufficient content and detail as to enable engineers, competent in structural analysis & structural steelwork design to safely design structures incorporating Mass 25. Design Codes Mass 25 is a modular system primarily for use in temporary works and as such complies with the following codes:-

• BS 449:1969 inc. 1989 Amendment - Specification for the use of Structural Steel in Buildings • BS 5975:2008 - Code of Practice for Temporary Works Procedures and the Permissible Stress Design of Falsework

In addition, it was recognised during the development of Mass 25 that, with regard to material specifications in particular, the more onerous requirements of the following two codes should be adopted.

• BS 5400: Part 3:2000 - Code of Practice for the Design of Steel Bridges • BS 5950: Part 1:2000 and Part 5:1998 - Structural use of Steelwork in Buildings

In the production of this manual, analysis has been carried out to the latest revisions of these codes. Eurocodes The equipment is currently being assessed to Eurocodes. Strengths relating to these codes will be published in a future revision to this document. Please refer to Mabey Hire engineering team for the latest information. Safe Working Loads The safe working loads for members & joints given in the Technical Data Sheet are generally based on theoretical values calculated in accordance with BS 449 & BS 5975 but with additional safety factors applied to ensure a minimum factor of safety of 2.0. In many cases full scale laboratory tests have been carried out & compared to the calculated values. In all cases a minimum factor of safety of 2.0 against the onset of permanent deformation has been established. All loads are all given as characteristic allowable working loads / strengths i.e. unfactored. In addition, the stated capacities maintain the factors of safety imposed by BS 5400 & BS 5950. Product Use For the handling and use of Mass 25, please refer to the Product Information & Use Sheet Ref. PIUM25.

1.0 Introduction


Mass 25




2.1 Props 2.1.1 Details The Prop unit forms the basis of the Mass 25 System. Props are fabricated from twin 4mm thick cold-formed channel sections (Material Grade: S420 MC) and are provided with 18mm diameter holes in flanges & end plates to allow connection of Mass 25 Grillage, Bracing and Auxiliary Components using M16 bolts.

Part No. Length (mm)

Weight (Kg)

FP009 90 7.8

FP018 180 9.8

FP036 360 13.7

FP054 540 18.3

FP090 900 26.7

FP1800 1800 47.6

FP2700 2700 69.1

2.0 Section Properties, Capacities & Weights


Mass 25




2.1.2 Section Properties

2.1.3 Weighted Average for Deflection Calculations

2.1.4 Load Capacity - Axial For general design purposes the nominal axial capacity is 250kN otherwise refer to Chart A for compressive capacity for a given effective length of the member. The values below are based on a 2.5m effective length.

2.1.5 Prop Capacity – End Details Application of the load at the ends of the Props should be through a standard Mass 25 part such as a Grillage Beam, Hinge Unit or Baseplate. In the absence of this, care must be taken to ensure that the load is applied uniformly over the Prop End Plate. Otherwise the capacity may be limited by the local capacity of the End Plate & Channels. 2.1.6 Loading Capacity – Bending and Shear For general design purposes, the nominal bending capacity is 20kNm otherwise refer to Chart B.

2.1.7 Load Capacity – Local Load Capacity

Area (cm2) Inertia (cm4) Section Modulus (cm3) Radius of Gyration (cm)

A Ixx Iyy Zxx Zyy rxx ryy

Nett 23.54 996 684 110 76 6.5 5.4

Gross 26.42 1219 789 135 87 6.8 5.5

Area (cm2) Inertia (cm4)

A Ixx Iyy

Weighted Average 25.84 1174 768

Compression Capacity Tension Capacity

Axial Load No Eccentricity

Eccentricity 25mm x-x

Eccentricity 25mm y-y

Using 4No. Bolts (Gr. 8.8)

Using 6No. Bolts (Gr. 8.8)

Axial Load Capacity (kN) 340 285 250 150 210

Full Section Bolted Joint (4No. Bolts Gr. 8.8)

Bolted Joint (6No. Bolts Gr. 8.8)

Bending Major Axis (x-x) kNm 20 11.7 17.6

Bending Minor Axis (y-y) kNm 15 11.7 13.5

Shear Major Axis (x-x) kN 175 130 195

Shear Minor Axis (y-y) kN 80 90* 90*

Tension Compression

Load on Flange (x-x) kN 50 Refer to Table A

Load on Web (y-y) kN N/A :- No connection holes in the webs


Note on Combined Effects Where appropriate the combined effects of axial load, bending & local effects must be considered. Please refer to Mabey engineers where advice is required.

The weighted average value is for use in analysis computer software to accurately model member axial & lateral deflection.

* Limited by section properties


Mass 25




2.1.8 Load Capacity – Axial & Bending Capacity

Chart A - Axial Prop Capacity to BS5950-5:1998 with min FOS increased to 2.0

0

50

100

150

200

250

300

350

0 1 2 3 4 5 6 7 8 9 10Effective Length (m)

Allow

able

Com

pres

sive L

oad (

kN)

Axial Compression

25mm X-X Eccentricity

25mm Y-Y Eccentricity

Horizontal Prop X-X (Accidental Load & Debris)

Horizontal Prop X-X (Self Weight Only)

Chart B - Bending Capacity to BS5950-5:1998 with min FOS increased to 2.0

0.0

5.0

10.0

15.0

20.0

25.0

0 1 2 3 4 5 6 7 8 9 10

Effective Length (m)

Allo

wab

le B

endi

ng M

omen

t (kN

m)

Bending X-X Bending Y-Y 4 Bolts X-X 4 Bolts Y-Y 6 Bolts X-X 6 Bolts Y-Y

Horizontal Prop curve includes for self-weight, debris (0.14kN/m), 10% axial offset of section depth & 10kN accidental load. NB: Capacity may be increased for short Prop lengths, refer to MH Engineers for details. Load should be applied through a stiff end unit. If applied via a local offset inducing concentrated loading then consideration should be given to local failure, see Note 2.1.5. Note on Combined Effects Where appropriate the combined effects of axial load, bending & local effects must be considered. Please refer to MH Engineers where advice is required.



Mass 25




2.1.9 Capacities on Flanges of Prop Table A – Web Buckling & Crushing Load Case 1 – Single Load / Reaction OR Two Opposite Loads or Reactions, at the Free End Capacity = 125kN

Load Case 2 – Single Load / Reaction OR Two Opposite Loads or Reactions, far from Free End Capacity = 95kN

Load Case 3 – Direct Tension Load Through 4No. Bolts in Prop Flange, far from Free End Capacity = 50kN

Load Case 4 – Direct Tension Load Using Through Bolt Detail with Min. 12mm Plate on the Opposite Flange Capacity = 95kN

Load Case 5 – Max. Shear in Bolts Parallel with Prop Capacity = 75kN




Mass 25




2.2 Grillage Beams 2.2.1 Details The Mass 25 Grillage Beams are fabricated from 203x203x60kg/m UC sections (Material Grade: S355 J2). Beams are provided with 18mm dia. holes in flanges & 22mm dia. holes in end plates to accept Mass 25 Props, Bracing and Auxiliary Components.

Part No. Length (mm)

Weight (Kg)

FG001 900 70.0

FG002 1800 132.1

FG003 2520 182.8

FG004 3240 233.5



Mass 25





2.2.3 Weighted Average for Deflection Calculations

2.2.4 Load Capacity – Bending & Shear

2.2.5 Load Capacity – Bearing & Buckling

Additional Notes: (Fig. A) Load positioned above a web stiffener. Values based on a bearing length of 180mm. (Fig. B) Load positioned spanning a bolted joint. Values based on a bearing length of 180mm. (Fig. C) Load positioned between web stiffeners. Values based on a bearing length of 180mm.


A Ixx Iyy Zxx Zyy rxx ryy

Nett 66.2 5147 1694 491 165 8.82 4.9

Gross 76.4 6125 2065 584 201 8.96 5.2

Area (cm2) Inertia (cm4)

A Ixx Iyy

Weighted Average 74.33 5939 1990

Section x-x Joint Capacity x-x

Bending Capacity (kNm) (For section effective length = 2m)

95 (Assuming 2.0m Effective Length) 20

Shear Capacity (kN) 230 190

Bearing Capacity (kN)

Fig. A 800 Limited by bearing stress

Fig. B 1300 Limited by buckling of web

Fig. C 500 Limited by bearing stress


Fig. A

Fig. B

Fig. C


The weighted Average value is for use in analysis computer software to accurately model member axial & lateral deflection.


Mass 25




2.3 Truss Braces 2.3.1 Details Truss Braces are fabricated from 80x80x4mm SHS’s (Material Grade: S355 J2) with 15mm thick end plates and allows Mass 25 Props to be built into trusses. The Truss Brace end plates have 18mm dia. Holes.


2.3.3 Load Capacity – Tension & Compression

Additional Notes: (a) The tension capacity can be increased as shown in brackets, if the through bolt/plate detail is used; bearing is taken on

the far flange of the Prop. (b) Values limited by various factors including Prop web compression, pulling of Prop flange & bolt bearing on Prop flange. Please refer to Table A.

Part No. Width (W) (mm) Height (H) (mm) Length (L) (mm) Weight (kg)

FB011 1260 1260 1506 21.5

FB013 1440 1800 2029 27.6


A Ixx Iyy Zxx Zyy Rxx Ryy

Frame Brace (Nett) 80x80x4mm SHS 12.0 114 114 28.6 28.6 3.09 3.09

Dimensions Capacities

Part No. Width (W) (mm) Height (H) (mm) Y (mm) A (Deg.) Tension (kN) Compression (kN)

FB011 1260 1260 1080 45 71 (106) 106

FB013 1440 1800 1620 51.6 64 (120) 120


See Note (a)


Mass 25




2.4 Frame Braces 2.4.1 Details Frame Braces are fabricated from 90x50x5mm RHS’s (Material Grade: S275 J0) and allows Mass 25 Props to be built into frames to form towers. All Frame Brace end plates have 18mm dia. holes.



Additional Notes: (a) The tension capacity can be increased as shown in brackets, if the through bolt/plate detail is used; bearing is taken on

the far flanges of the Prop. (b) Values limited by various factors including Prop web compression, pulling of Prop flange & bolt bearing on Prop flange. Please refer to Table A.

Part No. Width (W) (mm) Height (H) (mm) Length (L) (mm) Weight (kg)

FB001 1980 1620 2178 28.9


A Ixx Iyy Zxx Zyy Rxx Ryy

Frame Brace (Nett) 90x50x5mm RHS 12.7 127 49 28.3 19.7 3.16 1.97

Dimensions Capacities

Part No. Width (W) (mm) Height (H) (mm) X (mm) Y (mm) A (Deg.) Tension (kN) Compression (kN)

FB001 1980 1620 1800 1400 35.4 61 (115) 115



Mass 25




2.5 Angle Braces 2.5.1 Details Mass 25 Angle Braces are fabricated from 60x60x6mm RSA’s (Material Grade: S355 J2), with 18mm dia. holes, which bolt to the Mass 25 Prop flange.



Note: The above values assume that the Mass 25 prop legs are restrained from rotating on their axes by means other than the angle bracing e.g. top crosshead, fixed base or other.

Part No. Width (W) (mm)

Height (H) (mm)

Length (L) (mm)

Weight (kg)

FA001 1260 N/A 1440 8.2

FA011 1260 1380 2012 11.3

FA002 1620 N/A 1800 10.3

FA012 1620 1740 2521 14.3


A Ixx / Iyy Ivv Zxx / Zyy Zvv Rxx / Ryy Rvv

Angle Brace 60x60x6mm RSA 6.91 22.80 9.44 5.30 3.96 1.82 1.17

Dimensions Panel Horizontal Member Capacity Diagonal Member Capacity

Width (W)

(mm)

Height (H)

(mm)

Shear Capacity

(kN) Part No. PT

(kN) PC

(kN) Part No. PT

(kN) PC

(kN)

1260 1380 37 FA001 57 57 FA011 57 53

1620 1740 23 FA002 57 57 FA012 57 32



Mass 25




2.6 Adjustable Ends & Fittings NB: In all cases the bolted connection between the End Fitting & Prop, Grillage Beam or Ground Anchor should be checked for adequate shear & bearing capacity to resist the applied Prop load.

FF001 – Adjustable Pivot End

Load Capacity

Compression = 210kN*

Tension = 85kN

* This is dependent on the pin being in the x-x axis of the prop unit as shown,

otherwise use 150 kN

Strength values apply with joint rotation up to 60° from perpendicular (subject to limitations

of connection to item below)

FF006 – 80° Pivot End Unit

Load Capacity

Compression = 250kN

Tension = 120kN

Strength values apply with joint rotations up to 40° from perpendicular (subject to

limitations of connection to item below)

40°< angles <50° can be used but capacities will be reduced



Mass 25




2.6 Adjustable Ends & Fittings Continued

FF002 – Adjustable Spherical End

Load Capacity

Compression = 220kN (240kN at half extension)

Tension = 0kN

Max. Angle due to

Joint Rotation is 5° to Perpendicular

FF002VR – Adjustable Spherical End Vandal Resistant

Load Capacity

Compression = 220kN (240kN at half extension)

Tension = 0kN

Max. Angle due to

Joint Rotation is 5° to Perpendicular



Mass 25





FF004 Truss Fixing Cleat

FF005 Corner Brace

FF008/009 6/12mm Shim Plates

FF008A/009A

6/12mm Slotted Shim Plate FF010

Wall Plate FF011

Flat Transfer Plate with Channel

FF012

Flat Transfer Plate FF013

350 x 250 x 20mm Baseplate



Mass 25





FF014 406 x 406 x 20mm Baseplate

FF015 Transfer Plate with Channel

FF016 Flat Transfer Plate

FF017

Transfer Plate FF018

Half Scaffold Coupler 50mm FF019

M25 / M50 Waling Plate

FF020

M25 Prop / M125 Batten Tran. Plt. TPFP10

M50 / M25 Connector



Mass 25




Part No. Description Weight (Kg) Part No. Description Weight

(Kg)

FA001 Horizontal Angle Brace (1260W) 8.2 FF010 Wall Plate 19.7 FA002 Horizontal Angle Brace (1620W) 10.3 FF011 Flat Transfer Plate with Channel 13.8 FA011 Diagonal Angle Brace (1260W) 11.3 FF012 Flat Transfer Plate 11.2 FA012 Diagonal Angle Brace (1620W) 14.3 FF013 350 x 250 x 20mm Baseplate 14.4

FF014 406 x 406 x 20mm Baseplate 27.2 FB001 Frame Brace (1980W x 1620H) 28.9 FF015 Transfer Plate with Channel 14.4 FB011 Truss Brace (1260W x 1260H) 21.5 FF016 Flat Transfer Plate 11.3 FB013 Truss Brace (1440W x 1800H) 27.6 FF017 Transfer Plate 25.9

FF018 Half Scaffold Coupler 50mm 0.6 FF001 Adjustable Pivot End 17.0 FF019 M25 / M50 Waling Plate 2.6 FF002 Adjustable Spherical End 15.0 FF020 M25 Prop / M125 Batten Transfer Plate 8.7

FF002VR Adjustable Spherical End – Vandal Resistant 19.0 FF002CS C-Spanner 0.7 FG001 900mm Grillage Beam 70.0

FF004 Truss Fixing Cleat 1.8 FG002 1800mm Grillage Beam 132.1 FF005 Corner Brace 5.2 FG003 2520mm Grillage Beam 182.8 FF006 80 Degree Pivot End 21.8 FG004 3240mm Grillage Beam 233.5

FF006F 80 Degree Pivot End – Female 10.0

FF006M 80 Degree Pivot End – Male 10.0 FP009 90mm Prop Unit 7.8 FF006P 80 Degree Pivot End - Pin 0.6 FP018 180mm Prop Unit 9.8 FF008 6mm Shim Plate 1.6 FP036 360mm Prop Unit 13.7

FF008A 6mm Slotted Shim Plate 1.6 FP054 540mm Prop Unit 18.3 FF008B 6mm Shim Plate No Centre Hole 1.5 FP090 900mm Prop Unit 26.7 FF009 12mm Shim Plate 2.8 FP1800 1800mm Prop Unit 47.6

FF009A 12mm Slotted Shim Plate 3.2 FP2700 2700mm Prop Unit 69.1 FF009B 12mm Shim Plate No Centre Hole 3.1 TPFP10 M50 / M25 Connector 17.7

3.0 Equipment List


Mass 25




Connection Type Bolt Details

Prop Flange (FP) Prop Flange (FP)

to to

Prop Flange (FP) Angle Brace (FA001/002/011/012) M16 x 35 Bolt, Nut & Washer

Prop Flange (FP) Prop Flange (FP) Prop Flange (FP) Prop Flange (FP)

to to to to

Prop End (FP) Grillage Flange (FG) Adjustable Pivot End (FF001/002) Frame Brace (FB001)

M16 x 40 Bolt, Nut & Washer

Prop Flange (FP) Prop Flange (FP)

To to

Frame Brace (FB011/013) 80 Degree Pivot End (FF006) M16 x 45 Bolt, Nut & Washer

Prop End (FP) Prop End (FP) Prop End (FP)

Grillage Flange (FG) Prop End (FP)

Grillage Flange (FG)

to to to to to to

Prop End (FP) Adjustable Pivot End (FF001/002) Grillage Flange (FG) Grillage Flange (FG) M50 / M25 Connector (TPFP10) M50 / M25 Connector (TPFP10)

M16 x 50 Bolt, Nut & Washer

Prop End (FP) to 80 Degree Pivot End (FF006) M16 x 55 Bolt, Nut & Washer

Grillage End (FG) to Grillage End (FG) M20 x 60 Bolt, Nut & Washer

NB: All bolts are Grade 8.8, Washers to be ordered separately & used under the Nut only, unless stated otherwise by MH Engineers.

4.0 Bolt Application Table


Mass 25




Mabey MASS25 Propping System - Conversion Charts

From METRIC to IMPERIAL From IMPERIAL to METRIC100 mm 3.94 ins 100 ins 2540.0 mm100 m 328.08 ft 100 ft 30.48 m100 sq.mm 0.16 sq.ins 100 sq.ins 64516 sq.mm100 sq.m 1076.4 sq.ft 100 sq.ft 9.29 sq.m100 cu.cm 6.10 cu.ins 100 cu.ins 1638.7 cu.cm100 cu.m 3531.5 cu.ft 100 cu.ft 2.83 cu.m100 cm^4 2.40 ins^4 100 ins^4 4162.3 cm^4100 kg 220.48 lb 100 lb 45.36 kg100 kN 22.48 lb 100 lb 444.94 kN100 kg/m 67.2 plf 100 plf 148.80 kg/m100 N/sq.mm 14501 psi 100 psi 0.69 N/sq.mm100 kg/sq.m 20.5 psf 100 psf 488.20 kg/sq.m100 kN/sq.m 2.09 psf 100 psf 4789.3 kN/sq.m

DESCRIPTION

mm ins feet

Standard parts within FP009 - 90mm Prop 90 3 1/2 0.30

the Mabey MASS25 System FP018 - 180mm Prop 180 7 1/8 0.59

FP036 - 360mm Prop 360 14 1/8 1.18

FP054 - 540mm Prop 540 21 1/4 1.77

FP090 - 900mm Prop 900 35 3/8 2.95

FP180 - 1800mm Prop 1800 70 7/8 5.91

FP270 - 2700mm Prop 2700 106 1/4 8.86

FG001 - 0.9m Beam 900 35 3/8 2.95

FG003 - 2.52m Beam 2520 99 1/4 8.27

FG004 - 3.24m Beam 3240 127 1/2 10.63

LENGTH

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