Roof Slab Reinforcement Design

Identify the type of slab.

Roof slab reinforcement design.

The slab may be supported by walls or by reinforced concrete beams usually cast monolithically with the slab or by structural steel beams or by columns or by the ground. Rcc roof slab reinforcement details if you follow the minimum standards for structural design for modern day buildings you can opt for creating the rcc without a beam it is called a flat slab. Assume the thickness of slab take 4 cm per metre run of the span. The slab has to carry a distributed permanent action of 1 0 kn m2 excluding slab self weight and a variable action of 3.

In this video we learn how to reinforcement design in slab in autocad in hindi dear all slab two type ke hote hain one way slab two way slab slab me reinforc. Slabs are classified into 16 types. 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. Reinforcement detailing of a slab is done based on its support conditions.

Design procedure of one way slab. 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. Slab may be supported on walls or beams or columns.

Slab supported directly by columns are called flat slab. Should not be less than 110 mm for rooms should not be less than 75 mm for sunshades. However the complexity of the generalized approach. Find the effective span which is lesser of i distance between centres of bearings and ii clear span and effective depth.

Determine the dead load that is acting on the slab. Reinforced concrete slabs are heavier and generate higher seismic forces in an event. Simply supported one way slab a rectangular reinforced concrete slab is simply supported on two masonry walls 250 mm thick and 3 75 m apart. This is the design of roof how the reinforcement has been lated over here and how to be the covering lated over is 6 x6 inch and used 10 and 12 mm diameter bars.

Flexural reinforcement must be greater than 0 0018 psi or the shrinkage reinforcement. Slab supported on two sides and bending takes place predominantly in one direction only is called one way slab. Determine h min and round it to higher 10mm multiple. However including the beams would effectively transfer a load of slabs to the columns which is good for durability of the structure.