cast-in channels - cfs · pdf filecast-in channels 10 contents typical channel applications...

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Cast-in Channels


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10

ContentsTypical Channel Applications 9-3

Typical Cast-in Channel Anchor Variations 9-4

Cast-in Channel - Cold Rolled 9-5

Cast-in Channel - Hot Rolled 9-7

T-Bolts 9-8

Longitudinal Resistance 9-10

Toothed Channel Type CHT 9-11

CFS Flexi Channels Type F 9-12

CFS Captive Fixing Nuts 9-13

CFS UNI Channel 41/21 Cast-In Insert 9-14

Sled Channels for Metal Deck Floors 9-15

Met Stop for Fixing to the Edge of Metal Deck Floors 9-16

CFS Plain Back Channels 9-18

Special Channel Fabrications 9-19

Channels - Material, Standards 9-20


Typical Channel ApplicationsCurtain Wall

Curtain Wall: Bracket to Top of Slab

Masonry Support System: Fixing brick and stone support angles

Fixing of Mechanical Services

Lift guide rails

Curtain Wall: Bracket to Side of Slab

Structural Steel: Curtain Wall Bracket Steel to Structural Steel with Plain Backet Channel

Pipe Support Bracket to Underside of Slab

Fixing elevator guide rails and door surrounds


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e = 25 mm approx

e e

e = 25 mm approx

e e

Typical Cast-in Channel Anchor VariationsCFS high quality inserts are designed to provide flexible fixing points for concrete structures. Channels are ideal for use near the edges of concrete where drilling is not possible. They are ideal for use in post-tensioned structures.

‘T’-bolts can be placed in the channels easily and moved to the desired position. Subsequent removal of components is very simple.

CFS-S stud anchor standard

CFS channels can be supplied with either of the above anchor configurations. The load capacity is identical. Standard anchor centres on long lengths of channel are 250 mm. Other centres can be supplied on request. Special anchor types can be provided to suit specific site requirements.

Cold Rolled or Hot Rolled

In most circumstances, cold rolled sections provide the appropriate solution. Where vibration is an issue or in safety-critical applications, hot rolled channels should be considered. If in doubt, seek advice.

CFS-W welded wave anchor

T-Bolts

T head bolts or locking plates are simply inserted anywhere along the channel and turned through 90° to block into position.

Filler

All channels intended for casting in contain CFS quick to remove filler.


Channel

Anchor

PEC-TA 28/15 Cold rolled Bolt anchor





PEC-TA 72/49

Cold rolled

Welded I anchor

Material

Hot-dip. galvan. x x x x x x

Stainless steel A4 x x x x x x

Stainless steel A2 On Demand On Demand On Demand On Demand On Demand On Demand

Bolt 28/15 38/17 40/22 50/30 50/30 72/48

hef,min /bch /hch 45/28/15 76/38/17 79/40/25 94/50/30 155/53.5/33 179/72/49

hef,min - Effective anchoring depth min. bch - Width of channel hch - Height of channel

Standard Short piece cast-in channels

Anchor centres (mm)

150 200 250 300 150 150 250 250

Standard channel lengths (mm)

150 200 250 300 350 550

Other short lengths are available to order, please consult CFS.

Cast-in Channel - Cold Rolled

Cold Rolled C-Channel

100 250

150mm (recommended minimum)

F F 2F2

Fr Fr Fr Fr Fr Fr

‘α’

15° min

‘β’

100 250


F F 2F2

Fr Fr Fr Fr Fr Fr

‘α’

15° min

‘β’

100 250


F F 2F2

Fr Fr Fr Fr Fr Fr

‘α’

15° min

‘β’

100 250


F F 2F2

Fr Fr Fr Fr Fr Fr

‘α’

15° min

‘β’

100 250


F F 2F2

Fr Fr Fr Fr Fr Fr

‘α’

15° min

‘β’

100 250


F F 2F2

Fr Fr Fr Fr Fr Fr

‘α’

15° min

‘β’


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Cast-in Channel - Cold RolledDimensioning and design calculationsThe design of the products with a European Technical Approval is based on the standard CEN/TS 1992-4. We provide PEC Rail software to allow you to optimize product selection, which is available on our website www.cfs-fixings.com

The design loads for the CFS-PEC-TA Cast in channel are provided in this brochure. Please contact our technical office for assistance if necessary

Load capacities for cold rolled channelsCapacities per bolt where the T-bolts are spaced no closer than the anchors on the back of the channel

This table may be used in simple cases. The values are for tension only, shear only, or compare resultant forces of a tension and shear components with the shear capacities. In cases where there is a longitudinal force along the length of the channel, please see our nibbed bolt and toothed channel products.

These values are ultimate capacities and should be compared with the factored design loads.

PEC Rail software is available on our website www.cfs-fixings.com that would be useful for complex cases, with tensile and shear forces together, with close edge distances, different slab thickness or different concrete strength.

CFS will provide technical assistance for any problems you have, so if in doubt, ask for help.

Tension Capacity C25/30

Max Shear Capacity C30/37

Min Shear Capacity C30/37

Slab thickness ≥

Anchor Spacing

where c≥ Tension Only

where c≥ Shear Only


(if thinner, consult software)

5min 5max

mm kN mm kN mm kN mm mm mm

CFS-PEC-TA 28/15

40 5 59 5 40 4.5 100 50 200

CFS-PEC-TA 38/17

50 10 90 10 50 5.5 125 100 200

CFS-PEC-TA 40/25

50 11.1 100 11.1 50 6.2 150 100 250

CFS-PEC-TA 49/30

75 17.2 141 17.2 75 9.4 150 100 250

CFS-PEC-TA 54/33

100 30.5 250 30.5 100 14.4 200 100 250

CFS-PEC-TA72/49

150 55.6 360 55.6 150 22.2 250 100 400


Channel

Anchor

PEC-TA 40/22

Hot rolled

Welded I anchor

PEC-TA 50/30

Hot rolled

Welded I anchor

PEC-TA 52/34

Hot rolled

Welded I anchor

Material

Hot-dip. galvan. x x x

Stainless steel A2 On Demand On Demand On Demand

Bolt to suitv 40/22 50/30 50/30

hef,min /bch /hch79/40/22 94/50/30 155/52/34

hef,min - Effective anchoring depth min. bch - Width of channel hch - Height of channel

Cast-in Channel - Hot Rolled

Hot Rolled C-Channel

Capacities per bolt where the T-bolts are spaced no closer than the anchors on the back of the channel

This table may be used in simple cases. The values are for tension only, shear only, or compare resultant forces of a tension and shear components with the shear capacities.These values are ultimate capacities and should be compared with the factored design loads.For more complicated design cases, please consult with CFS who will prepare a calculation for situation.

Tension Capacity C25/30

Shear Capacity C30/37

Shear Capacity C30/37

Slab thickness ≥

Anchor Spacing

where c≥ Tension Only



(if thinner, consult soft-ware)

5min 5max

mm kN mm kN mm kN mm mm mm

PEC-TA 40/22 50 11.1 100 11.1 50 6.4 150 100 250

PEC-TA 50/30 75 17.2 141 17.2 75 4 150 100 250

PEC-TA 52/34 100 30.6 250 30.5 100 6.1 200 100 250


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T-BoltsCFS T-bolts are drop forged specifically designed to be used with the appropriate channel section. All mild steel T-bolts are supplied electroplated finish as standard grade 4.6.

They are also available grade 4.6 hot dip spun galvanised to BS-1971 to provide a minimum of 43 microns thickness. Stainless steel T-bolts are A2 grade 50.

Grade A4 and class 70 are also available to order. Please note that when deciding the correct channel and ‘T’-bolt combination the load capacity of both channel and ‘T’-bolt need to be taken into consideration.

Type T Bolt 28/15 T Bolt 38/17 T Bolt 40/22 T Bolt 50/30 T Bolt 72/48

All bolts are delivered in one box with nuts and washers. Nuts and washers are packed in separate plastic bags.

Electro zinc plated* x x x x x

Stainless steel A4 x x x x x

Grade 4.6 as standard x x x x x

8.8 on request x x x x x

Diameter M8-M12 M10-M16 M10-M16 M12-M20 M20-M30

Length (mm) 15-100 20-200 20-300 30-300 50-200

*Hot-dip galvanised available on request.

* Please also check channel capacities for the conditions present.

Size Range for Channels

Bolt size

Grade 4.6 Grade 8.8

Torque

Nm

Max. Load kN* Bending

Moment kNm

Torque Nm

Max. Load kN* Bending

Moment

kNmTension Shear Tension Shear

M 6 3 4.3 2.9 3 3 11.6 6.4 9

M 8 8 7.9 5.3 8 8 21.1 11.7 22

M 10 13 12.5 8.4 16 15 33.4 18.6 43

M 12 25 18.2 12.1 28 25 48.6 27 75

M 16 40 33.9 22.6 72 40 90.4 50.2 192

M 20 120 52.9 35.3 140 120 141.1 78.4 374

M 24 200 76.3 50.7 242 200 203.3 113 647

M 27 300 99.1 66 360 300 264.1 146.9 959

M 30 380 121.1 80.6 486 380 322.8 179.5 1295

SWL and Technical Characteristics


Once you have determined the minimum required bolt length for your application, please consult with CFS to establish the suitable stock length. We carry a wide range of lengths in stock.

Profile Type f (mm) Bolt m+s+u (mm)

CFS-PEC-TA 28/15 Cold 2.3 M6 8.8

CFS-PEC-TA 38/17 Cold 3 M8 11.3


CFS-PEC-TA 49/30 Cold 7.5 M12 17.3


CFS-PEC-TA 72/49 Cold 10 M20 27.0

CFS-PEC-TA 40/22 Hot 6 M24 32.5

CFS-PEC-TA 50/30 Hot 8 M27 36.5

CFS-PEC-TA 52/34 Hot 11.5 M30 40

Cold = Cold rolled Hot = Hot rolled

l = Required bolt length

f = Height of the profile lip

m = Height of the nut

s = Thickness of the washer

lk = Clamping thickness

u = Length of bolt protruding

DETERMINING REQUIRED BOLT LENGTH


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Nibbed T-BoltsThese bolts must be used with hot rolled channels, hot dipped galvanized. All bolts grade 8.8

Channel Nibbed T-Bolt Toque Nm

Longitudinal Design Capacity kN

CFS-PEC-TA 40/22 HSZ 40-22 M16 120 4.1

CFS-PEC-TA 50/30 HSZ 50-30 M16 120 10.0

CFS-PEC-TA 50/30 HSZ 50-30 M20 360 11.8

CFS-PEC-TA 52/34 HSZ 52-34 M20 360 11.8

Longitudinal ResistanceWhere forces exist along the length of the channel, there are two alternative solutions, ribbed T-Bolts alongside our hot-rolled channels, or toothed channels. If in doubt, please send your conditions to CFS for advice.

A steel-to-steel contact is required between channel and attachment. A calibrated torque wrench must be used.


Toothed Channel Type CHTBolt diameter

Channel profile (CHT)

Allowable loads in reinforced concrete (kN)†

Long length Short channel or single bolt with bolt pair 3-anchor

Longitudinal loads

Long length Bolt pair or single bolt 2-anchor* 3-anchor*

Minimum spacing in reinforced concrete (mm)

Channel spacing Normal pair Parallel edge End edge C1 C2 C3

T-bolts Grade 8.8

M16 38/23 41/22

12.0 20.0 8.0 14.0

12.0 20.0 24.0 5.5 8.0 110

125 85 75 100 75 60

M12 38/23 41/22

12.0 20.0 8.0 14.0

12.0 20.0 24.0 5.5 8.0 11.0

125 85 75 100 75 50

Stainless steel bolts

M16 41/22 8.0 14.0 5.5 8.0 11.0 100 75 60

M12 41/22 8.0 14.0 4.0 8.0 8.0 100 75 50

Notes: *Subject to check on resultant load. †Pull-out, transverse shear or resultant loads. Allowable loads quoted are after application of a Safety Factor of approximately 2.5 on test in reinforced concrete. For extreme bolt positions and minimum cut edge distances, please consult CFS Ltd. Two bolts on the same channel taking longitudinal loads can be as little as 50mm apart, please consult CFS Ltd.

Allowablelongitudinalload

7 mm

Bolt length

Teeth pitch3 mm

60 min

)mm(etercnocdecrofniernignicapsmuminiM)Nk(etercnocdecrofniernisdaolelbawollAlennahCtloBgnicapslennahC)sdaollanidutignol()sdaoltnatluserroraehsesrevsnart,tuo-llup(eliforpretemaid

(CHT) Long length Short channel with bolt pair Long length Bolt pair Normal pair Parallel edge End edge*rohcna-3*rohcna-2tlobelgnisrorohcna-3tlobelgnisro C1 C2 C3

T- bolts Grade 8.8

M16 57585210.420.020.210.020.2132/83

06570010.110.85.50.410.822/14

M12 57585210.420.020.210.020.2132/83

05570010.110.85.50.410.822/14


M16 06570010.110.85.50.410.822/14

M12 05570010.80.80.40.410.822/14

Notes:* Subject to check on resultant load.Allowable loads quoted are after application of a Safety Factor of approximately 2.5 on test in reinforced concrete.For extreme bolt positions andminimum cut edge distances, please consult CFS Ltd.Two bolts on the same channel taking longitudinal loads can be as little as 50 mm apart; please consult CFS Ltd .

250 250

250 150 150

150

T-head bolts for channels CHT 38/23 and 41/22

)mm(elbaliavashtgneltlobleetssselniatS)mm(elbaliavashtgneltloT-btloBlennahC)CZS(2A)CZS(4A)CZS(8.8edarGretemaideliforp

38/23 M16 06003,002,051,521,001,08,06,05,04,03

M12 30, 40, 50, 60, 80, 100,125,150,200,300

41/22 M16 57,06,05,0405,53001,05

M12 0508,05,5305,53

C1 C2

C3

Allowablelongitudinalload

7 mm

Bolt length

Teeth pitch3 mm

60 min

)mm(etercnocdecrofniernignicapsmuminiM)Nk(etercnocdecrofniernisdaolelbawollAlennahCtloBgnicapslennahC)sdaollanidutignol()sdaoltnatluserroraehsesrevsnart,tuo-llup(eliforpretemaid

(CHT) Long length Short channel with bolt pair Long length Bolt pair Normal pair Parallel edge End edge*rohcna-3*rohcna-2tlobelgnisrorohcna-3tlobelgnisro C1 C2 C3

T- bolts Grade 8.8

M16 57585210.420.020.210.020.2132/83

06570010.110.85.50.410.822/14

M12 57585210.420.020.210.020.2132/83

05570010.110.85.50.410.822/14


M16 06570010.110.85.50.410.822/14

M12 05570010.80.80.40.410.822/14

Notes:* Subject to check on resultant load.Allowable loads quoted are after application of a Safety Factor of approximately 2.5 on test in reinforced concrete.For extreme bolt positions andminimum cut edge distances, please consult CFS Ltd.Two bolts on the same channel taking longitudinal loads can be as little as 50 mm apart; please consult CFS Ltd .

250 250

250 150 150

150

T-head bolts for channels CHT 38/23 and 41/22

)mm(elbaliavashtgneltlobleetssselniatS)mm(elbaliavashtgneltloT-btloBlennahC)CZS(2A)CZS(4A)CZS(8.8edarGretemaideliforp

38/23 M16 06003,002,051,521,001,08,06,05,04,03

M12 30, 40, 50, 60, 80, 100,125,150,200,300

41/22 M16 57,06,05,0405,53001,05

M12 0508,05,5305,53

C1 C2

C3


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CFS Flexi Channels Type FCFS Flexi Channels are ideally suited for the quick, reliable and cost efficient fixing of different construction elements to metal deck floors.

The insert can be adjusted in height to suit the varying floor profiles and fabricated ski assemblies are simple to fit to the base of the adjustable feet.

• Loads based on minimum C35 concrete strength • For 350mm channels minimum bolt centres = 150mm • For minimum height flexi anchors reduce the load by (x 0.92)

CFS Cast-In 49/30 with Flexible Anchor

Product Description Hot dipped galvanized or stainless steel

Length [mm]

Number of Anchors

Min. Total Height [mm]

Max. Total [mm]

CFS - TA/F - 40/25, 49/30 200 or 350 200 (2) / 350 (3) 60 90

CFS - TA/F - 40/25, 49/30, 54/33 200 or 350 200 (2) / 350 (3) 85 110

CFS - TA/F - 40/25, 49/30, 54/33 200 or 350 200 (2) / 350 (3) 108 158

Other lengths / profile types or materials are available on requestFor min. total height = 60mm the loads FRd have to be reduced by factor 0.92

N

V

V

V N

N

3.25

49

30 Tota

l min

and

max

hei

ght

200m 350m

Section Tension [kN] SWL [NRD]

Shear [kN] SWL [N]

Resultant [kN]

SWL [R]

Min. Edge Distance [mm]

T-Bolts SWL

40/25 10 10 10 120 12mm (9.3kN) 16mm (17.3kN)

49/30 15 15 15 150 16mm (17.3kN) 20mm (27.0kN)

54/33 25 25 25 250 16mm (17.3kN) 20mm (27.0kN)

All load values in accordance with design criteria CEN /TS 1992-4-3


Captive Nut Indicative Load Capacities

40/25 Channel c/w M12 Captive Nut 8kN Tensile: 10kN Shear

49/30 Channel c/w M16 Captive Nut 12.5kN Tensile: 15kN Shear

54/33 Channel c/w M20 Captive Nut 25kN Tensile: 25kN Shear

40/25 Channel c/w M12 Captive Nut



CFS Captive Fixing NutsThe Economic Fix to Channel InsertsThe main benefits are:

• Channels are supplied ready for casting in complete with the channel nuts.

• Very quick to install – no down time looking for seperate T-Bolts.

• Very economical particularly for larger diameters and longer projections.

Captive Nut Data for Cast-In Channel Inserts


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CFS UNI Channel 41/21 Cast-In InsertSize: 41 x 21 x 2.5mm• Concrete inserts are available in standard lengths of

3 metres which are supplied complete with polystyrene infill and End Caps in place.

• Non-standard lengths can be supplied in increments of 200mm. Dedicated lengths to suit your requirements can also be produced.

• Finish pre-galvanised or hot dip galvanised. If site installation requires the concrete insert to be cut and end caps must be reinserted at each end.

100mm

100mm

100mm

1522

39

7mm DiameterFixing Hole 21mm

41mmUNI Channel 41/21 Safe working load

Point load (250mm centres) 5.5 kN

Continuous Load (per 1000mm) 22 kN

Concrete Strength 35 N/mm

Recommended loadings


9–8

CAST-IN CHANNEL

MET STOP FOR FIXING TO THE EDGE OF METAL DECK FLOORS

CFS Met-stop provides the complete solution forfixing to metal deck floors. Comprising a cast-inchannel contained within a metal edge trim.

toorder

CFS Met-stop is manufactured to suit yourparticular project conditions. Met-stop edge trimis produced from pre-galvanized sheet witheither hot-dip galvanized or stainless steelchannel inserts.

to order

Min50

Typical installation showing Met stop shot firedor tek-screwed down to the steel frame.Restraint straps are provided to give additionalrestraint to the upper edge.

Fix restraint straps, tying verticalleg back to the metal decking

9–7

CAST-IN CHANNEL

SLED CHANNELS FOR METAL DECK FLOORS

CFS sled channels are designed to to be used inthe top surface of metal deck floors. Sled channelassemblies allow channel inserts to be easilypositioned so that they are flush with the surfaceof the concrete and maintain a correct edgedistance from the decking edge trim.

Sled channel assemblies are fabricated to suityour particular project requirements. Wemanufacture to suit your slab depth and deckingtype and edge condition details. CFS will bepleased to advise of the most economicalassembly for you.

TYPICAL SLED DETAIL

SLED ALLOWABLE LOAD DATA(for typical example when used to fix curtain walling)

Min. edge Resultant Loads (R) Reinforcement

Channel distance e Single point Bolt pair* requirements

38/17 100 mm 16 kN 12 kN Standard mesh

40/25 125 mm 18 kN 16 kN and

49/30 150 mm 10 kN 20 kN 10 mm dia. bar

Notes: Quoted loads assume unit cast into lightweight con- 450 mm long

crete minimum 130 mm thick, 25 N/mm2 strength and are with

after the application of a safety factor of approximately 3:1. 4 No.

* Loads quoted assume the component is fixed to sled 10 mm dia.

assembly using two bolts minimum 100 mm apart. Bobs(300/80)

Single, double or triple channelassemblies can be produced.

Manufactured to suit the slab depth,or to sit on top of the ribs.Please advise your exact decking detail.

Edge spacers give precise setting out.

e

³ 50

Resultantload (R)

Additional reinforcement

Mesh

³ 25

9-7

Ski allowable load data (for typical example when used to fix curtain walling)

Channel with support foot for metal deck flooring

Sled Channels for Metal Deck FloorsCFS ski channels are designed to to be used in the top surface of metal deck floors. Ski channel assemblies allow channel inserts to be easily positioned so that they are flush with the surface of the concrete and maintain a correct edge distance from the decking edge trim.

Ski channel assemblies are fabricated to suit your particular project requirements. We manufacture to suit your slab depth and decking type and edge condition details. CFS will be pleased to advise of the most economical assembly for you.

toorder

to order

Min50

Fix restraint straps, tying verticalleg backto the metal decking




e³ 50

Resultantload (R)


Mesh

³ 25


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Met Stop for Fixing to the Edge of Metal Deck FloorsCFS Met stop provides the complete solution for fixing to metal deck floors. Comprising a cast-in channel contained within a metal edge trim.

toorder

to order

Min50

Fix restraint straps, tying verticalleg backto the metal decking




e³ 50

Resultantload (R)


Mesh

³ 25

CFS Met stop is manufactured to suit your particular project conditions. Met-stop edge trim is produced from pre-galvanized sheet with either hot-dip galvanized or stainless steel channel inserts.

Typical installation showing Met stop shot fired or tek-screwed down to the steel frame. Restraint straps are provided to give additional restraint to the upper edge.


c

a

b

250mm mc

edF

300 standartmesh

to order

min

.50

toor

der

Met stop load data and reinforcement requirements

Loading data for lightweight concrete of minimum 25 N/mm2 strength reinforced as detailed on previous page.

9–10

CAST-IN CHANNEL

LIFT BLOCKS

INTRODUCTIONCFS lift blocks are the ideal solution for installinginserts into block or brick lift shaft walls. Timeconsuming casting of pad-stones on site withinwalls is completely avoided. CFS produces cast

CFS LIFT BLOCKSBUILT WITHIN A LIFT SHAFT WALL.

Dimensions a, b and c to orderLift blocks over 50 kg contain 2 No. liftingsockets.

c

a

b

blocks containing CFS inserts. CFS lift blocksare manufactured bespoke to suit your projectconditions.

9–9

CAST-IN CHANNEL

Extreme bolt Allowable

Maximum position (ed), resultant

Met stop cantilever (c)* (assuming mc)* load (F)

28/15 MTS 40 mm 25 mm 3.5 kN

38/17 MTS 50 mm 30 mm 6.0 kN

40/25 MTS 75 mm 45 mm 8.0 kN

Quoted loads are after the application of a safety factor

of 3:1. * ‘Preferred cantilever’ = 25 mm.

MET STOP LOAD DATA AND REINFORCEMENT REQUIREMENTS

Loading data for lightweight concrete of minimum 25 N/mm2 strength reinforcedas detailed on previous page.

Reinforcement requirements to achieve full loading in lightweight concrete, strength 25 N/mm2.

Standard mesh

plus

10 mm diameter longitudinal bar

with

10 mm diameter bobs (300/80)

at 300 mm centres for long lengths

150 mm centres for short lengths

CFS Met-stop can be provided to suit your siterequirements at short notice. We manufacture tosuit your site dimensions.

250 mm mc

edF

300 standartmesh

to order

min

.50

toor

der

9-9

Reinforcement requirements to achieve full loading in lightweight concrete, strength 25 N/mm2.

Standard mesh

plus

10 mm diameter longitudinal bar

with

10 mm diameter bobs (300/80)

at 300 mm centres for long lengths

150 mm centres for short lengths

CFS Met stop can be provided to suit your site requirements at short notice. We manufacture to suit your site dimensions.


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Max.point load

Bending load capacity at span L (single span element) Corresponding BoltF flex [kN] 2x F flex [kN] q flex [kN/m]

Fz [kN]

L max

[cm]

L [m] L [m] L [m] Type Thread

0.50 1.00 1.50 0.50 1.00 1.50 0.50 1.00 1.50 M

28/15 3.9 8 0.8 0.3 0.12 0.6 0.16 0.07 3.3 0.4 0.13 28/15 6-12

38/17 4.8 11 1.5 0.6 0.3 1.1 0.3 0.15 6.1 0.9 0.3 38/17 10-16

41/41 5.6 49 5.4 2.7 1.8 4.0 2.0 1.3 21.5 5.4 2.3 41/41 8-16

40/25 3.8 33 2.6 1.3 0.6 1.9 0.8 0.4 10.3 2.2 0.7 40/22 10-16

49/30 4.9 46 4.3 2.2 1.2 3.3 1.6 0.7 17.4 4.3 1.3 50/30 10-20

40/22 5.7 21 2.6 1.3 0.6 2.0 0.8 0.3 10.5 2.1 0.6 40/22 10-16

50/30 11.0 19 5.3 2.7 1.6 4.0 2.0 0.9 21.4 5.3 1.7 50/30 10-20

52/34 17.0 21 8.8 4.4 2.8 6.6 3.3 1.6 35.1 8.8 3.0 50/30 10-20

72/48 31.0 32 22.3 11.2 7.4 16.7 8.4 5.6 89.3 22.3 9.9 72/48 20-30

All load bearing are calculated as elastic-plastic values according to DIN 18800; these are approximate values and can be used for EC3.Partial safey coefficient gamma f=1.4, deflection =max l/150. Calculate the design values as FR,d=1.4xFFor other sizes, please consult CFS.

CFS Plain Back ChannelsPlain back channels are useful in non-concrete applications for example, welded to steel stations.


SKI Channel for the Metal Deck Floor

Special Channel Fabrications

Radiussed

Welded in pairs to aid setting out

Fabricated corner piece


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T-Bolt Grade 4.6, Grade 8.8

Hot Dip Galvanized DIN EN ISO 10684,

DIN EN ISO 898-1

DIN EN ISO 4034

zinc coating ≥ 40 µm

DIN 50961, DIN EN 1403,

DIN EN ISO 4042

DIN EN ISO 898-1

zinc coating ≥12 µm

Grade A2-50, A2-70

Grade A4-50, A4-70

Stainless Steel HCR

Material No. 1.4529, HCR50

DIN EN 3506-1

DIN EN 10 088

A4

Material No. 1.4401/ 1.4404/ 1.4571

DIN EN ISO 3506-1

DIN EN 10 088

Channel Hot Rolled, Cold Rolled

Mild Steel Material S235JR (RSt 37-2)

Material No. 1.0038, 1.0044

DIN EN 10025

Hot Dip Galvanized

Material S235JR (RSt 37-2)

Material No. 1.0038, 1.0044

DIN EN 10025

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Material No. 1.4529/1.4547

DIN EN 10088

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Material No. 1.4401/ 1.4404/ 1.4571

DIN EN 10088

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