Rcc Roof Slab Thickness

The size of roof is 41 50 ft x 38 20 ft 1585 30 sq ft.

Rcc roof slab thickness.

The centring contractor has made roofing by having flat surface from bottom of slab and sloping on top surface of slab for easy flow of rain water. Slab on ground 1 4 minimum thickness of diaphragms. To create rcc you will need cement coarse aggregate fine aggregate m s. Q the length and breadth of slab is 10 meter and 7 meter respectively.

Let the shorter span has provided the main rod and longer span has provided distribution rod. The contractor s quotation for second floor roof rcc is rs. However in general the thickness of rcc slab should be 4 5 thick. For beam it should be 16mm and 12 mm as per span.

Reinforced concrete slabs are heavier and generate higher seismic forces in an event. Such slabs left unconnected to walls caused many deaths in the 2005 quake from school roof collapses. 1 3 minimum thickness of slab on the ground ubc recommends minimum thickness of concrete floor slabs supported directly on the ground to be 89mm whereas bcgbc4010a apply structural principles to residential low rise constructions determined minimum thickness to be 100mm. Let us take an example of a slab.

Ms steel for slab for main bar should be 10mm and for distribution 8mm or 10 mm. Numecal for rcc roof slab steel calculation. 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. The thickness has to be at least 4 5 5 0.

Ft for 4 thick 10 ft height. Use 10 12 mm for lantel area and 16 mm for invisible beams. Beside this the slab has following information for main bars length of on rod 7 meter diameter.