Roof Slab Steel Details

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.

Roof slab steel details.

Thickness of the slab is decided based on span to depth ratio specified in is456 2000. Main bar distribution bar difference top and bottom clear cover is 25 mm consider development length as 40 d thickness of slab 150 mm. Minimum reinforcement is 0 12 for hysd bars and 0 15 for mild steel bars. The maximum diameter of bar used in slab should not exceed 1 8 of the total thickness of slab.

This method has been used extensively since 1963 for slabs supported at the edges by walls steel beams or monolithic concrete beams having a total depth not less than about 3 times the slab thickness. Steel roof section details steel roof section design detail steel bar use make a slab amp. The dwg files are compatible back to autocad 2000. Maximum spacing of main bar is restricted to 3 times effective depth or 300 mm whichever is less.

Best materials ph. 6 mm 8 mm 10 mm 12mm and 16mm. The diameter of bar generally used in slabs are. Design draw in autocad format.

If a sheet must be bent a gentle 90 degree bend is the maximum recom mended. Metal should not be re bent once it has been formed nor should it be folded back on itself.