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GlobalFloor®. Cofraplus 60 Load Tables
Cofraplus 60. Load Tables
ApplicationsCofraplus 60 profiled steel sheet is used for reinforced concrete inter-storey deck slabs, terraces, flat roofs including all kinds of constructions, whenever static load (office buildings, public utility facilities, high-rise facilities) or light dynamic load (multi-storey parking lots, wareho-use facilities with forklift trucks traffic etc.) occurs.
MaterialCofraplus 60 steel sheet is formed by use of constant profile technology from S350 GD flat steel compliant with PN-EN 10326:2006 standard, both sides galvanised with zinc weight of 275g/m2 (C1 and C2 corrodingmedium). The external part of the profiled steel sheet may be protected with additional organic coatings of ArcelorMittal Construction coating systems. .
Formwork At construction management stage the Cofraplusprofiled steel sheet serves as a non-demountabletableform attached to permanent joists and shoredif needed. The steel sheets are stitched lengthwise.Sheet lightness facilitates handling of large elements – mass per unit area of the steel sheet equals 8,53 kg/m2. The stay in place steel form must be continuous in spans and any breakage needs permanent joists.Due to transport capacities and handling on building sites the maximum lenght of separate steel sheet is 15 metres.
Varnished surface
Cofraplus 60corrugated steel deckingfor composite slab
Cofraplus 60. Load Tables
Steel reinforcement Due to its specific properties, mechanical constraintsbetween the steel sheet and concrete that occur as a result of friction forces andsurface notches, Cofraplus 60 when used, servesas mating (composite) steel sheet and completelyor partially replaces bottom span reinforcement ofconcrete floor slabs. The cross section of Cofraplus 60 steel sheet reinforcement equals from 10,29 cm2/mb to 17,57 cm2/mb, accordingly to feedstock thickness.Total thickness of reinforced concrete floor slab range is from 11 to 28 cm. When designing continuous reinforced concrete floor slabs it is necessary to add some reinforcement bars for the hogging moment.Due to concrete shrinkage it is recommended to useanti-shrinkage net with a cross section in both directions of 80 mm2 minimum.
Approval and StandardsThe requirements concerning flame resistance determine the structure of reinforced concrete slab with matingCofraplus 60 steel sheet, way of dimensioning it forassembly and functional phases as well as its designing on the basis of guidelines and methodology included in:PN EN 1994 – 1 – 1: 2008PN EN 1994 – 1 – 2: 2008PN EN 1993 – 1 – 3: 2008Bceause of flame resistance the parameters necessaryto specify delamination strenght as well as valuescharacteristic for designing the floor slab have beendetermined and verified at Building Research Instituteand are published in AT – 15 – 6138/2009 Technical Approval.
Technical parameters
hp
bo
bs
br
bb
hp/2
Cofraplus 60 geometric characteristics
bs [cm] bb [cm] bo [cm] br [cm] hp [cm]
20,7 6,2 8,15 10,6 5,8
Nominal thickness of steel sheet ts mm 0,75 0,88 1,00 1,25
Live load gs kg/ m2 8,53 10,00 11,37 14,22
Effective section Ap cm2/m 10,29 12,17 13,91 17,57
Inertia moment of the section Ip cm4/m 55,12 65,21 74,53 93,94
Neutral axis position e cm 3,33 3,33 3,33 3,33
Functional properties of the profile
Geometric parametres of floor slab
Cofraplus 60. Load Tables
L
fmax < L /180L
fmax < L /250L L
d=100L L L
d=100
Thickness of floor steelsheet [mm]
0,75 0,88 1,00 1,25 0,75 0,88 1,00 1,25 0,75 0,88 1,00 1,25 0,75 0,88 1,00 1,25
Thickness of floor slab [cm]
L [m] L [m] L [m] L [m]
11 2,78 2,93 3,06 3,29 2,60 2,74 2,84 3,00 2,65 3,11 3,48 3,75 2,97 3,34 3,69 4,05
12 2,68 2,83 2,95 3,17 2,50 2,63 2,75 2,96 2,51 2,96 3,31 3,71 2,82 3,20 3,53 3,82
13 2,60 2,74 2,86 3,08 2,41 2,54 2,65 2,86 2,39 2,82 3,16 3,54 2,68 3,16 3,39 3,76
14 2,57 2,68 2,78 2,99 2,33 2,46 2,57 2,77 2,28 2,70 3,03 3,39 2,56 3,03 3,26 3,63
15 2,51 2,65 2,75 2,91 2,26 2,39 2,49 2,69 2,18 2,59 2,91 3,26 2,45 2,90 3,24 3,50
16 2,44 2,58 2,70 2,90 2,20 2,32 2,43 2,62 2,10 2,49 2,80 3,14 2,36 2,79 3,14 3,42
18 2,32 2,46 2,57 2,77 2,09 2,21 2,31 2,49 1,94 2,31 2,61 2,92 2,18 2,60 2,92 3,28
20 2,22 2,35 2,46 2,66 2,00 2,12 2,21 2,39 1,82 2,16 2,44 2,74 2,04 2,43 2,74 3,08
24 2,07 2,19 2,29 2,48 1,86 1,97 2,06 2,23 1,61 1,93 2,18 2,45 1,81 2,17 2,45 2,76
28 1,95 2,06 2,15 2,33 1,75 1,86 1,94 2,10 1,45 1,75 1,98 2,23 1,63 1,96 2,23 2,50
Load-bearing of the floor steel sheet has been determined for the assumed elastic load-bearing within the meaning of PN EN 1993 – 1 – 3. The load-bearing of single-span system has been determined for L/180 and L/250 permissible deflection. The width of intermediate support for multi-span system equals 100 mm.The table may be used for systems with shoring.It is possible for the systems with no assumed steel sheet shoring at assembly phase to enhance (on the basis of the analysis of ArcelorMittal Construction Poland Technical Department) the assembly range as a result of taking advantage of steel sheet load-bearing capabilities and plastification of the section while considering SGN for intermediate supports in multi-span systems.
Permissible spans in the construction stage of Cofraplus 60 steel sheet
Thickness of floor slab [mm] cm 11 12 13 14 15 16 18 20 24 28
Concreteconsumption m3/m2 0,075 0,085 0,095 0,105 0,115 0,125 0,145 0,165 0,205 0,245
Theoretical weight
of floor slab*kN/m2 1,87 2,12 2,375 2,62 2,87 3,12 3,62 4,12 5,12 6,12
*To obtain the total weight of the slab, add the weight of the concrete due to deflection and the weight of the profile. Bulk density of the concrete 25 kN/m3
Nominal concrete consumption
Cofraplus 60. Load Tables
Functional properties of composite floor slab
Minimum value of fire endurance of floor slab made from Cofraplus 60 steel sheet, non-isolated and 11 cm thick with no additional span reinforcement is REI 30. Minimum values of floor slab thickness that guarantee fire insulation are included in the table below.For classes higher than REI 30 the fire enduranceis achieved by way of appropriate designingof additional reinforcement, in compliance with D Annex
to PN EN 1994 – 1 – 2, and placed in particular coverin the folds of floor slab. Way of dimensioning andnecessary characteristic parametres are included inAT – 15 – 6138/2009. Please also contact Technical Department of ArcelorMittal.
h [cm]COFRAPLUS 60; 0,75mm COFRAPLUS 60; 0,88mm COFRAPLUS 60; 1,00mm
Mpl,Rd [kNm/m]
VvRd [kN/m]
I [cm4/m]
Mpl,Rd [kNm/m]
VvRd [kN/m]
I [cm4/m]
Mpl,Rd [kNm/m]
VvRd [kN/m]
I [cm4/m]
11 23,05 23,97 491 26,27 25,32 525 28,98 26,57 554
12 26,65 25,95 632 30,53 27,30 675 33,85 28,54 712
13 30,25 27,91 799 34,79 29,25 852 38,71 30,48 899
14 33,85 29,84 993 39,05 31,17 1059 43,58 32,40 1116
15 37,45 31,75 1217 43,31 33,06 1297 48,45 34,28 1367
16 41,05 33,62 1473 47,57 34,93 1568 53,32 36,14 1651
18 48,26 37,28 2087 56,08 38,57 2218 63,06 39,77 2334
20 55,46 40,83 2850 64,60 42,11 3024 72,79 43,29 3178
22 62,66 44,27 3777 73,12 45,53 4003 82,53 46,69 4201
24 69,87 47,59 4885 81,64 48,83 5168 92,27 49,98 5418
28 84,27 53,90 7702 98,68 55,10 8122 111,74 56,21 8494
Fire resistance
REI 30 60 90 120 180
Thickness [cm] 11 12 14 16 19
Acoustic insulation
Acoustic properties of the floor without suspended ceiling depend on the floor slab weight and equal respectively:
Thickness of floor slab
11 12 13 14 15 20 24 28
Acoustic insulation Rw (C:Ctr) dB(A)
45 (-1;-4) 46(-1;-4) 47(-1;-4) 48(-1;-5) 48(-1;-4) 52(-2;-6) 54(-1;-7) 56(-1;-7)
Cofraplus 60. Load Tables
Load-bearing of the floor and delamination factor
According to PN EN 1994 – 1 – 1 the load-bearing of floor slab with respect to delamination of the steel sheet is controlled on the grounds of two equivalent methods: m-k method or method of partial composition. Para-metres necessary to control this load-bearing capacity have been determined during laboratory endurance tests conducted at Building Research Institute with the use of
methodology compliant with Annex B.3. of PN – EN – 1994 – 1 -1.
m MPa k MPa TRd MPa
92,50 0,056 0,10
Rangeability of supports in load-bearing structure [mm]Qk
[kN/m2]1500 2000 2500 3000 3500 4000 4500 5000 5500 6000
1,5 110
Q131 110
Q131 110
Q131 111
Q131 111
Q131 122
Q131 142
Q131 163
Q188 183
Q188 184
Q221
12 Ø620
12 Ø620
12 Ø620
12 Ø840
12 Ø830
12 Ø840
14 Ø1030
16 Ø1030
18 Ø1040
20 Ø1230
2,5 110
Q131 110
Q131 110
Q131 111
Q131 111
Q131 132
Q131 152
Q131 173
Q188 193
Q188
12 Ø620
12 Ø620
12 Ø630
12 Ø830
12 Ø840
13 Ø1030
15 Ø1030
17 Ø1040
19 Ø1230
3,5 110
Q131 110
Q131 110
Q131 111
Q131 121
Q131 142
Q131 162
Q188 213
Q221
12 Ø620
12 Ø620
12 Ø640
12 Ø830
12 Ø1030
14 Ø1030
16 Ø1040
21 Ø1040
4,5 110
Q131 110
Q131 110
Q131 111
Q131 131
Q131 152
Q131 192
Q188
12 Ø620
12 Ø630
12 Ø830
12 Ø840
13 Ø1030
15 Ø1030
19 Ø1040
6,0 110
Q131 110
Q131 110
Q131 111
Q131 142
Q131 202
Q221
12 Ø620
12 Ø630
12 Ø830
12 Ø1030
14 Ø1030
20 Ø1030
8,0 110
Q131 110
Q131 110
Q131 131
Q131 202
Q221
12 Ø620
12 Ø630
12 Ø840
13 Ø1030
20 Ø1030
Load tables (functional phase – composite)
Single-span continuous floor slab
The tables of pemissible loads habe been prepared for the range to 6m. Particular system’s statics may enable use of these solutions with respect to greater rangeability. In case a detailed analysis of solutions in our floor systems please contact Technical Department. Our Technical Depart-ment offers designing support and technical advice free of charge in addition to the materials that our company produce
Cofraplus 60. Load Tables
Two-span continuous floor slab
Rangeability of supports in load-bearing structure [mm]
L2/3
L2
L1/3
L1
Qk
[kN/m2]1500 2000 2500 3000 3500 4000 4500 5000 5500 6000
1,5 110
Q131Ø613
110
Q131Ø613
111
Q131Ø613
111
Q131Ø613
111
Q131Ø611
122
Q131Ø69
132
Q131Ø813
152
Q131Ø811
163
Q188Ø89
183
Q188Ø1013
12 Ø620
12 Ø620
12 Ø620
12 Ø620
12 Ø630
12 Ø830
13 Ø830
15 Ø830
16 Ø840
18 Ø1030
2,5 110
Q131Ø613
110
Q131Ø613
111
Q131Ø613
111
Q131Ø612
111
Q131Ø68
122
Q131Ø812
132
Q131Ø1015
152
Q131Ø65
163
Q188Ø1216
183
Q188Ø1010
12 Ø620
12 Ø620
12 Ø620
12 Ø630
12 Ø830
12 Ø830
13 Ø840
15 Ø840
16 Ø1030
18 Ø1030
3,5 110
Q131Ø613
110
Q131Ø613
111
Q131Ø613
111
Q131Ø69
111
Q131Ø811
122
Q131Ø89
132
Q131Ø1011
152
Q131Ø1215
163
Q188Ø109
214
Q221Ø1214
12 Ø620
12 Ø620
12 Ø620
12 Ø640
12 Ø830
12 Ø840
13 Ø1030
15 Ø1030
16 Ø1040
21 Ø1040
4,5 110
Q131Ø613
110
Q131Ø613
111
Q131Ø612
111
Q131Ø813
111
Q131Ø89
122
Q131Ø1011
142
Q131Ø1010
183
Q188Ø1216
244
Q257Ø1216
12 Ø620
12 Ø620
12 Ø630
12 Ø830
12 Ø830
12 Ø1030
14 Ø1030
18 Ø1030
24 Ø1030
6,0 110
Q131Ø613
110
Q131Ø613
111
Q131Ø69
111
Q131Ø66
131
Q131Ø89
162
Q188Ø65
213
Q221Ø65
12 Ø620
12 Ø620
12 Ø640
12 Ø830
13 Ø840
16 Ø1030
21 Ø1030
8,0 110
Q131Ø613
110
Q131Ø612
111
Q131Ø67
141
Q131Ø811
182
Q188Ø811
213
Q295Ø811
12 Ø620
12 Ø630
12 Ø830
14 Ø830
18 Ø830
25 Ø830
AB
CDE
F GH
A – floor slab thicknessB – number of props in span at assembly phaseC – type of anti-shrinkage reinforcement netD – diameter of reinforcement bar in over-support area (2 cm cover)E – distance between reinforcement bars in over-support areaF – floor slab thickness for REI 60G – diameter of reinforcement bar in the fold of floor steel sheet calculated for load transfer in fire conditionsH – cover of fire bar
Assumptions used in the Tables- the load-bearings included in the table are characteristic values- assumed concrete class: C25/30- assumed type of reinforcement steel: A-IIIN (RB500W)- assumed safety coefficient for loads: 1,5 - assumed thickness of floor steel sheet: 0,75 mm - ranges given refer to ranges in the axes of supports- tables prepared for equal spans
Cofraplus 60. Load Tables
Three-span continuous floor slab
Rangeability of supports in load-bearing structure [mm]
L2/3L1/3 L2/3L1/3
L1 L2 L3
Qk
[kN/m2]1500 2000 2500 3000 3500 4000 4500 5000 5500 6000
1,5 110
Q131Ø613
110
Q131Ø613
111
Q131Ø613
111
Q131Ø613
111
Q131Ø613
122
Q131Ø611
132
Q131Ø69
152
Q131Ø813
163
Q188Ø1018
183
Q188Ø810
12 Ø620
12 Ø620
12 Ø620
12 Ø620
12 Ø640
12 Ø830
13 Ø830
15 Ø840
16 Ø1030
18 Ø1030
2,5 110
Q131Ø613
110
Q131Ø613
111
Q131Ø613
111
Q131Ø613
111
Q131Ø610
122
Q131Ø68
132
Q131Ø811
152
Q131Ø66
163
Q188Ø65
183
Q188Ø88
12 Ø620
12 Ø620
12 Ø620
12 Ø630
12 Ø830
12 Ø830
13 Ø840
15 Ø1030
16 Ø1030
18 Ø1040
3,5 110
Q131Ø613
110
Q131Ø613
111
Q131Ø613
111
Q131Ø611
111
Q131Ø813
122
Q131Ø811
142
Q131Ø810
162
Q188Ø89
173
Q188Ø1216
214
Q221Ø1216
12 Ø620
12 Ø620
12 Ø630
12 Ø830
12 Ø830
12 Ø1030
14 Ø1030
16 Ø1030
17 Ø1040
21 Ø1040
4,5 110
Q131Ø613
110
Q131Ø613
111
Q131Ø613
111
Q131Ø69
111
Q131Ø66
122
Q131Ø1013
152
Q131Ø65
183
Q188Ø1013
244
Q257Ø65
12 Ø620
12 Ø620
12 Ø630
12 Ø830
12 Ø840
12 Ø1030
15 Ø1030
18 Ø1030
24 Ø1030
6,0 110
Q131Ø613
110
Q131Ø613
111
Q131Ø610
111
Q131Ø812
131
Q131Ø66
162
Q188Ø810
203
Q221Ø1015
12 Ø620
12 Ø620
12 Ø640
12 Ø830
13 Ø830
16 Ø1030
20 Ø1030
8,0 110
Q131Ø613
110
Q131Ø613
111
Q131Ø88
141
Q131Ø813
182
Q188Ø67
253
Q295Ø67
12 Ø620
12 Ø630
12 Ø830
14 Ø830
18 Ø840
25 Ø830
111
Q131Ø610
12 Ø840
11cm – Total thickness of floor slab in cm for REI 301 – Number of props in a span at assembly phaseQ131 – type of anti-shrinkage reinforcement netØ 6 mm - diameter of reinforcement bar in over-support area (2 cm cover)10 cm - distance between reinforcement bars in over-support areaØ 8 mm - diameter of reinforcement bar in the fold of floor steel sheet calculated for load transfer in fire condi-tions for REI 6012 cm – thickness of floor steel sheet in case of REI 60
Table legendq – live loadq = q1 + g1q1 – imposed loadg1 – dead loadL - Rangeability of supports in load-bearing structuren – number of spans of floor slabeg. L = 3500 n = 3 q1 = 2,5 kN/m² g1 = 1 kN/m² q = 3,5 kN/m²read fron Table no 3
Cofraplus 60. Load Tables
Punching
Cofraplus 60 steel sheet may be produced with factory made holes for the joints to composite floor beams with floor slab. This version is marked with COFRAPLUS 60P sign. Calculations and production for punched version are conducted upon request.
COFRAPLUS 60PFactory made punching system
Additional services
Formwork of floor slab edgesFormwork of floor slab edges is made up of galvanised steel trim bent at the right angle. Standard lenght is from 2 to 4 m.
One should remember about other necessary tools and materials at the building site.
Thickness of floor slab[cm]
Thickness of steel sheetedging [mm]
≤1112 - 14
≥ 15
1,201,502,00
Sealing elements made of foamed plastics:- thickness 40 mm- lenght 1035 mm- adhesive part
Adhesive
Cofraplus 60. Load Tables
Reinforcement nets
Distance between transverse bars with stepless regulation a = 300 – 500 mmDistance between longitudinal bars b = 100, 150, 200 mm
Mesh types
Longitudinal barsdistance x diametre
Mesh sheet lengthEnd protrusions over the lenght
Mesh sheet weight
Reinforcement oflongitudinal bars section
Transverse barsdistance x diametre
Mesh sheet widthEnd protrusions over the width
Reinforcement oftransverse bars section
[mm] [m] [mm] [kg] [cm2/m]
Q 131150 x 5,0 5,00 100 100
22,51,31
150 x 5,0 2,15 25 25 1,31
Q 188150 x 6,0 5,00 100 100
32,41,88
150 x 6,0 2,15 25 25 1,88
Q 221150 x 6,5/5,0-4/4 5,00 100 100
33,72,21
150 x 6,5 2,15 25 25 2,21
Q 257150 x 7,0 5,00 100 100
44,12,57
150 x 7,0 2,15 25 25 2,57
Q 295150 x 7,5/5,5-4,4 5,00 100 100
44,22,95
150 x 7,5 2,15 25 25 2,95
Q 335150 x 8,0 5,00 100 100
57,73,35
150 x 8,0 2,15 25 25 3,35
Q 377150 x 6,0d-6,0-4/4 6,00 100 100
67,63,77
100 x 7,0 2,15 25 25 3,77
Q 378150 x 8,5/6,0-4/4 6,00 150 150
66,73,78
150 x 8,5 2,15 25 25 3,78
Q443150 x 6,5/6,5-4/4 6,00 100 100
78,34,43
100 x 7,5 2,15 25 25 4,43
Q 513150 x 7,0d/7,0-4/4 6,00 100 100
90,05,13
100 x 8,0 2,15 25 25 5,13
Q 524*150 x 10,0 5,00 100 100
90,15,24
150 x 10,0 2,15 25 25 5,24
Q 670150 x 8,0d/8,0-4/4 6,00 100 100
115,46,70
100 x 9,0 2,15 25 25 6,70
*10 mm wire nets are produced in compliance with DIN 488. Configuration and production upon Client’s request.
ArcelorMittalConstruction Solutions
Centrala - Świętochłowiceul. Metalowców 141-600 ŚwiętochłowicePolandT +48 32 770 65 40 F +48 32 245 45 21 [email protected]
Oddział - KonopnicaKonopnica 12096-200 Rawa MazowieckaPolandT +48 46 813 28 00F +48 22 213 38 49 [email protected]
Oddział - Starachowiceul. Składowa 3327-200 StarachowicePolandT +48 41 273 58 12F +48 41 273 58 11 [email protected]
