Roof Slab Reinforcement Design

Such slabs left unconnected to walls caused many deaths in the 2005 quake from school roof collapses.

Roof slab reinforcement design. Slab may be supported on walls or beams or columns. Design of slab examples and tutorials by sharifah maszura syed mohsin example 1. Steps to be followed in the design of slab assuming suitable bearings not less than 10cm find the span of the slab between the centers of bearings. Slab supported directly by columns are called flat slab.

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. Find the effective span which is lesser of i distance between centres of bearings and ii clear span and effective depth. 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.

Design procedure of one way slab. If reinforced concrete were to be reused strong connections would have to be made between roof and walls. However including the beams would effectively transfer a load of slabs to the columns which is good for durability of the structure. 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.

Assume the thickness of slab take 4 cm per metre run of the span. Should not be less than 110 mm for rooms should not be less than 75 mm for sunshades. Flexural reinforcement must be greater than 0 0018 psi or the shrinkage reinforcement. Reinforced concrete slabs are heavier and generate higher seismic forces in an event.

Determine the dead load that is acting on the slab. Slabs are constructed to provide flat surfaces usually horizontal in building floors roofs bridges and other types of structures. Reinforcement detailing of a slab is done based on its support conditions. 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.

Identify the type of slab. However the complexity of the generalized approach. Determine h min and round it to higher 10mm multiple. 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.