Such slabs left unconnected to walls caused many deaths in the 2005 quake from school roof collapses.
Reinforced concrete roof slab thickness.
Exact specifications vary but most concrete roofs are several inches thick.
A concrete slab is a common structural element of modern buildings consisting of a flat horizontal surface made of cast concrete.
Thickness of concrete slab depends on loads and size of the slab.
Minimum reinforcement is 0 12 for hysd bars and 0 15 for mild steel bars.
Plan view of a reinforced concrete pitched inclined slab.
Thickening the structure along the perimeter by another will serve as an integral footing adding strength where the loads are heaviest.
A solid slab of concrete capping the top of your house.
The maximum diameter of bar used in slab should not exceed 1 8 of the total thickness of slab.
A concrete roof is exactly what it sounds like.
Slab reinforcement cantilever reinforcement slab thickness roof apex reinforcement example of a 1.
6 mm 8 mm 10 mm 12mm and 16mm.
Reinforced concrete slabs are heavier and generate higher seismic forces in an event.
Thickness of the slab is decided based on span to depth ratio specified in is456 2000.
For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers.
For determining moments shears and reactions of such slabs.
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.
If reinforced concrete were to be reused strong connections would have to be made between roof and walls.
The diameter of bar generally used in slabs are.
In general 6 inch 150mm slab thickness is considered for residential and commercial buildings with reinforcement details as per design.