Thickness Of Rcc Roof Slab

The construction cost for rcc roof slab depends on lots of variables like.

Thickness of rcc roof slab.

Exact specifications vary but most concrete roofs are several inches thick. Sand required for 1000 sq ft slab. Such slabs left unconnected to walls caused many deaths in the 2005 quake from school roof collapses. The thickness of slab and ms steel arrangement is according to design based on span and loading condition.

Reinforced concrete slabs are heavier and generate higher seismic forces in an event. Thickness of beam and column. However you can get a rough estimate with a simple rcc roof slab steel calculation formula. To find out the exact amount it will take to construct an rcc roof slab let.

If reinforced concrete were to be reused strong connections would have to be made between roof and walls. For beam it should be 16mm and 12 mm as per span. Ms steel for slab for main bar should be 10mm and for distribution 8mm or 10 mm. Construction on site design of rcc structures caption minimum rcc beam size should not be less than 9 x 9 225mm x 225mm with an additional slab thickness of 125 mm i generally use a minimum of 4 bars with 2 bars of 12 mm thickness in the bottom of the beam and 2 bars of 10 mm at the top of the beam.

Minimum thickness of concrete slab beam column foundation and other structural members is selected to meet the design requirements as per standard codes. 1070 kg steel quantity required for 1000 square feet rcc slab in india and their construction cost is about rs rs 64200 for steel rebar read more if you want to know how much steel required for 1000 sq ft roof slab. A concrete slab is a common structural element of modern buildings consisting of a flat horizontal surface made of cast concrete. Minimum thickness of concrete structural elements based on aci 318 14 irc 2009 is 456 2000 and ubc 1997 is presented.

In m20 ratio of sand cement and aggregate is 1 1 5 3 in this ratio 1 5 part is sand. 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. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. However in general the thickness of rcc slab should be 4 5 thick.

A concrete roof is exactly what it sounds like.