Published Paper Details:

A slab that rests directly on the columns without the provision of beams is called a flat slab. Unlike conventional slabs, the load applied on the flat slab is transferred directly to the column which is a relatively small area. Construction of a flat slab has its own advantages like good architectural appearances, easier formwork, shorter construction time, reduced building height and better illumination. But in the flat slab system, it is not possible to have larger spans and the thickness of the slab is more when compared to conventional reinforced concrete two-way slab system. The effective span of the column defines the load distribution in the flat slab system. Hence the flat slab design is direct connected with column spacing or Effective length of span. Punching shear failure is one of the failure that occurs in a flat slab. When the load is applied on the slab, large shear forces and bending moments occur near the columns and it leads to failure of the slab by punching around the column. Punching shear failure is a brittle failure.