Finite Element Analysis of Punching Shear of Reinforced Concrete flat slab

Abstract

Flat-slab building structures has significant advantages over slab-beam-column structures because of the free design of space, shorter construction time and costeffective aspects. In the present situation of building construction around the world, Flat slab is becoming widely popular in the multi-storied buildings. However, many buildings with flat slab have performed poorly under the earthquake loading and therefore it is considered vulnerable under punching shear. The design code which is followed is not adequate for the punching shear of flat slab buildings under lateral loading. To understand the behavior of building with flat slab subjected lateral loads, a numerical study is performed. A three-dimensional finite element analysis of reinforced concrete flat slab with software ABAQUS using the concrete damage plasticity model is presented. A reinforced concrete flat slab with and without column head and drop panel along with the columns is modelled. A study is performed for understanding the linear and nonlinear behavior of flat slab subjected to lateral static and dynamic loads.