Reinforced Concrete Roof Slab Thickness

For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers.

Reinforced concrete roof slab thickness. 6 mm 8 mm 10 mm 12mm and 16mm. Minimum reinforcement is 0 12 for hysd bars and 0 15 for mild steel bars. For flatwork such as slabs on grade and driveways a minimum thickness of four inches is required but increasing the thickness to five inches can add nearly 50 percent to the load bearing capacity. For determining moments shears and reactions of such slabs.

Thickness of the slab is decided based on span to depth ratio specified in is456 2000. In general 6 inch 150mm slab thickness is considered for residential and commercial buildings with reinforcement details as per design. According to the 1995 aci code all two way reinforced concrete slab systems including edge supported slabs flat slabs and flat plates are to be analyzed and designed according to one unified method such as direct design method and equivalent frame method. Reinforced concrete slabs are heavier and generate higher seismic forces in an event.

Plan view of a reinforced concrete pitched inclined slab. A concrete roof is exactly what it sounds like. Exact specifications vary but most concrete roofs are several inches thick. Slab reinforcement cantilever reinforcement slab thickness roof apex reinforcement example of a 1.

Thickening the structure along the perimeter by another will serve as an integral footing adding strength where the loads are heaviest. The diameter of bar generally used in slabs are. The maximum diameter of bar used in slab should not exceed 1 8 of the total thickness of slab. A solid slab of concrete capping the top of your house.

If reinforced concrete were to be reused strong connections would have to be made between roof and walls. Such slabs left unconnected to walls caused many deaths in the 2005 quake from school roof collapses. Thickness of concrete slab depends on loads and size of the slab.