Thickness Of Rcc Roof

The thickness has to be at least 4 5 5 0.

Thickness of rcc roof. Reinforced concrete slabs are heavier and generate higher seismic forces in an event. Main steel 8 mm bars 6 c c and distribution steel of 6 mm bars 6 c c b two way slab. Unified building code ubc specified minimum thickness of ribbed slab to be 1 12 distance between ribs or 51mm. 1 2 minimum thickness of ribbed slab aci 318 14 recommend the same value of non prestressed beams as provided in table 2.

Slab is a structural member which enable people to move from one floor and one place to another place in a flat. 4 bars of 12mm steel rods fe 500 2. With out slab one can not take benefit of any structure like building culvert bridge. 6 of pcc layer comes first.

For beam it should be 16mm and 12 mm as per span. Ribbed one way slab. 2 bars of 12 mm in the bottom and 2 bars of 10 mm on the top. Ms steel for slab for main bar should be 10mm and for distribution 8mm or 10 mm.

For slab thickness it. Ideal beam size should not be less than 9 x9 with a minimum of4 steel bars with 2 bars of 12 mm thickness in the. Such slabs left unconnected to walls caused many deaths in the 2005 quake from school roof collapses. In this article i have described step by step rcc roof slab steel calculation.

So read it carefully one by one to get a clear understanding. Slab a one way slab. However in general the thickness of rcc slab should be 4 5 thick. Use 10 12 mm for lantel area and 16 mm for invisible beams.