Cofraplus 60 Load Span tables - PGA Consultants
Cofraplus 60 Load Span tables - PGA Consultants
Cofraplus 60 Load Span tables - PGA Consultants
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Ar val<br />
Composite floor decks<br />
<strong>Cofraplus</strong> <strong>60</strong><br />
MESH REINFORCEMENT, SLAB DEPTH AND PROPPING REQUIREMENTS UNDER TYPICAL APPLIED LOADS<br />
These <strong>tables</strong> apply to simple cases where there are distributed loads and equal spans.<br />
Using the Cofra 4 software, our technical team can carry out composite floor deck studies in the shortest possible time.<br />
q = 2,50 kN/m 2<br />
L<br />
(cm)<br />
Up to 350<br />
from 350 to 3<strong>60</strong><br />
from 3<strong>60</strong> to 370<br />
from 370 to 390<br />
from 390 to 430<br />
from 430 to 440<br />
from 440 to 4<strong>60</strong><br />
from 4<strong>60</strong> to 470<br />
from 470 to 500<br />
from 500 to 520<br />
from 520 to 530<br />
from 530 to 540<br />
from 540 to 550<br />
from 550 to 570<br />
from 570 to 580<br />
from 580 to 590<br />
from 590 to <strong>60</strong>0<br />
AcM : Anti crack Mesh<br />
TB : Top Bars<br />
Number<br />
of props<br />
0<br />
0<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
2<br />
2<br />
2<br />
2<br />
2<br />
2<br />
2 continuous bays<br />
e = 0,75 mm<br />
d<br />
(cm)<br />
PAF-R 10 PAF-R<br />
PAF-R 10 ST 10<br />
PAF-R 11 ST 20<br />
PAF-R 11 ST 25<br />
PAF-R 12 ST 25<br />
PAF-R 13 ST 25<br />
PAF-R 13 ST 30<br />
PAF-R 14 ST 30<br />
PAF-R 14 ST 35<br />
PAF-R 15 ST 35<br />
PAF-R 15 ST 50<br />
PAF-R 16 ST 35<br />
PAF-R 16 ST 45<br />
PAF-R 17 ST 45<br />
PAF-R 17 ST <strong>60</strong><br />
PAF-R 18 ST 50<br />
PAF-R 18 ST <strong>60</strong><br />
L<br />
L<br />
q = 3,50 kN/m 2<br />
L<br />
(cm)<br />
Number<br />
of props<br />
0<br />
0<br />
0<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
2<br />
2<br />
2<br />
2<br />
2<br />
2<br />
2<br />
2<br />
e = 0,75 mm<br />
d<br />
(cm)<br />
AcM TB AcM TB<br />
Up to 300<br />
from 300 to 330<br />
from 330 to 3<strong>60</strong><br />
from 3<strong>60</strong> to 370<br />
from 370 to 380<br />
from 380 to 390<br />
from 390 to 400<br />
from 400 to 420<br />
from 420 to 440<br />
from 440 to 450<br />
from 450 to 470<br />
from 470 to 490<br />
from 490 to 500<br />
from 500 to 510<br />
from 510 to 520<br />
from 520 to 530<br />
from 530 to 540<br />
from 540 to 550<br />
from 550 to 5<strong>60</strong><br />
from 5<strong>60</strong> to 570<br />
from 570 to 580<br />
from 580 to 590<br />
from 590 to <strong>60</strong>0<br />
PAF-R 10 PAF-R<br />
PAF-R 10 ST 10<br />
PAF-R 10 ST 20<br />
PAF-R 11 ST 25<br />
PAF-R 11 ST 30<br />
PAF-R 11 ST 35<br />
PAF-R 12 ST 30<br />
PAF-R 12 ST 35<br />
PAF-R 13 ST 35<br />
ST 10 13 ST 45<br />
PAF-R 14 ST 35<br />
PAF-R 15 ST 35<br />
PAF-R 16 ST 35<br />
PAF-R 16 ST 45<br />
ST 10 16 ST 50<br />
PAF-R 18 ST 45<br />
PAF-R 19 ST 45<br />
PAF-R 20 ST 45<br />
PAF-R 21 ST 45<br />
PAF-R 22 ST 45<br />
PAF-R 23 ST 45<br />
PAF-R 25 ST 45<br />
PAF-R 26 ST 45<br />
2 continuous bays<br />
8<br />
q = 5,00 kN/m 2<br />
L<br />
(cm)<br />
Up to 250<br />
from 250 to 270<br />
from 270 to 310<br />
from 310 to 340<br />
from 340 to 350<br />
from 350 to 3<strong>60</strong><br />
from 3<strong>60</strong> to 380<br />
from 380 to 400<br />
from 400 to 420<br />
from 420 to 440<br />
from 440 to 450<br />
from 450 to 470<br />
from 470 to 480<br />
from 480 to 490<br />
from 490 to 500<br />
from 500 to 520<br />
from 520 to 530<br />
from 530 to 540<br />
from 540 to 550<br />
Number<br />
of props<br />
0<br />
0<br />
0<br />
0<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
2<br />
2<br />
2<br />
2<br />
2<br />
2<br />
e = 0,75 mm<br />
AcM d TB<br />
(cm)<br />
PAF-R 10 PAF-R<br />
PAF-R 10 ST 10<br />
PAF-R 10 ST 20<br />
PAF-R 10 ST 25<br />
PAF-R 12 ST 30<br />
PAF-R 12 ST 35<br />
PAF-R 13 ST 35<br />
PAF-R 14 ST 35<br />
PAF-R 15 ST 35<br />
PAF-R 16 ST 35<br />
PAF-R 17 ST 35<br />
PAF-R 18 ST 35<br />
PAF-R 19 ST 35<br />
PAF-R 22 ST 35<br />
PAF-R 23 ST 35<br />
PAF-R 24 ST 35<br />
PAF-R 25 ST 35<br />
PAF-R 26 ST 45<br />
PAF-R 28 ST 35<br />
Basis of table<br />
q = imposed load<br />
q = q 1 + g 1<br />
q 1 = imposed live load<br />
g 1 = imposed permanent load<br />
(partition wall, floor covering, suspended ceilings) taken<br />
into account as operating loads.<br />
e.g. : L = 3,80 m<br />
q 1 = 1,50 kN/m 2<br />
g 1 = 1,00 kN/m 2<br />
Consult the table : q = 2,50 kN/m 2 .<br />
11 = slab depth d<br />
PAF-R 11 ST 25<br />
PAF-R = Anti Crack Mesh<br />
ST 25 = Top Bars (Mesh)<br />
L<br />
L<br />
q = 8,00 kN/m 2<br />
L<br />
(cm)<br />
Up to 210<br />
from 210 to 240<br />
from 240 to 250<br />
from 250 to 2<strong>60</strong><br />
from 2<strong>60</strong> to 270<br />
from 270 to 280<br />
from 280 to 290<br />
from 290 to 310<br />
from 310 to 320<br />
from 320 to 330<br />
from 330 to 340<br />
from 340 to 350<br />
from 350 to 3<strong>60</strong><br />
from 3<strong>60</strong> to 370<br />
from 370 to 380<br />
from 380 to 390<br />
from 390 to 400<br />
from 390 to 410<br />
from 410 v 420<br />
from 420 to 430<br />
from 430 to 440<br />
from 440 to 450<br />
Number<br />
of props<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1<br />
2<br />
2<br />
2<br />
Complementary assumptions :<br />
• Normal weight concrete 2400 daN/m 3<br />
• Deflection at laying stage =<br />
• Active deflection in service =<br />
• Shrinkage = 4 x 10 -4<br />
• Covering of top bars = 20 mm<br />
• Top Bars : yield point 500 MPa<br />
L<br />
240<br />
L<br />
350<br />
e = 0,75 mm<br />
AcM d TB<br />
(cm)<br />
PAF-R 10 ST 10<br />
PAF-R 10 ST 20<br />
PAF-R 10 ST 25<br />
ST 10 10 ST 20<br />
PAF-R 11 ST 25<br />
ST 10 11 ST 20<br />
PAF-R 12 ST 25<br />
PAF-R 13 ST 25<br />
PAF-R 15 ST 25<br />
PAF-R 16 ST 25<br />
PAF-R 16 ST 30<br />
PAF-R 17 ST 30<br />
PAF-R 18 ST 30<br />
PAF-R 19 ST 30<br />
PAF-R 19 ST 35<br />
PAF-R 20 ST 35<br />
PAF-R 21 ST 35<br />
PAF-R 22 ST 35<br />
PAF-R 23 ST 35<br />
PAF-R 26 ST 35<br />
PAF-R 27 ST 35<br />
PAF-R 28 ST 35