Thickness of the slab is decided based on span to depth ratio specified in is456 2000.
Roof slab steel details.
6 mm 8 mm 10 mm 12mm and 16mm.
Best materials ph.
The diameter of bar generally used in slabs are.
Steel roof section details steel roof section design detail steel bar use make a slab amp.
Maximum spacing of main bar is restricted to 3 times effective depth or 300 mm whichever is less.
Main bars are 12 mm in diameter 150 mm centre to centre spacing distribution bars are 8 mm in diameter 150 mm centre to centre spacing.
Bending and bowing aluminum and steel roofing and siding sheets are rollformed from hardened tempered metal for maximum strength.
If a sheet must be bent a gentle 90 degree bend is the maximum recom mended.
Minimum reinforcement is 0 12 for hysd bars and 0 15 for mild steel bars.
Main bar distribution bar difference top and bottom clear cover is 25 mm consider development length as 40 d thickness of slab 150 mm.
Metal should not be re bent once it has been formed nor should it be folded back on itself.
The maximum diameter of bar used in slab should not exceed 1 8 of the total thickness of slab.
Steel roof section design dwg file.
The dwg files are compatible back to autocad 2000.