Reinforced Concrete Roof Slab Thickness

Minimum reinforcement is 0 12 for hysd bars and 0 15 for mild steel bars.

Reinforced concrete roof slab thickness.

The thickness of concrete is an important factor in load bearing strength but to conserve resources and avoid over building other factors are also taken into consideration. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. 6 mm 8 mm 10 mm 12mm and 16mm. Minimum thickness of concrete structural elements based on aci 318 14 irc 2009 is 456 2000 and ubc 1997 is presented.

Thickness of the slab is decided based on span to depth ratio specified in is456 2000. Design process includes proper assumption of structural element sizes and then check hellip. The diameter of bar generally used in slabs are. A concrete slab is a common structural element of modern buildings consisting of a flat horizontal surface made of cast concrete.

Such slabs left unconnected to walls caused many deaths in the 2005 quake from school roof collapses. If reinforced concrete were to be reused strong connections would have to be made between roof and walls. Minimum thickness of concrete slab beam column foundation and other structural members is selected to meet the design requirements as per standard codes. Steel reinforced slabs typically between 100 and 500 mm thick are most often used to construct floors and ceilings while thinner mud slabs may be used for exterior paving see below in many domestic and industrial buildings a thick concrete slab supported on.

Exact specifications vary but most concrete roofs are several inches thick. Structural concrete work is planned to bear loads or hold weight but transfer the weight to the soil base beneath the structure. The maximum diameter of bar used in slab should not exceed 1 8 of the total thickness of slab. Plan view of a reinforced concrete pitched inclined slab.

Slab reinforcement cantilever reinforcement slab thickness roof apex reinforcement example of a 1. A concrete roof is exactly what it sounds like. Reinforced concrete slabs are heavier and generate higher seismic forces in an event.