2D-Linear static and non-linear dynamic progressive collapse analysis of reinforced concrete building

Abstract

Progressive collapse is defined as the collapse of a building or a structure either partially or completely in a progressive manner from element to element resulting from the failure of one or more key elements. There will be heavy loss of property and life if a progressive collapse occurs suddenly. The present study investigates a 2D, two bay - Five storey Reinforced Concrete (RC) bare frame used. A linear static analysis and non-linear dynamic analysis using time history method is carried out using finite element software. Two column removal scenarios namely corner and middle column removal scenario are considered. In Linear Static analysis Demand Capacity Ratio (DCR) values and member acceptance criteria are considered and Non-linear Dynamic Analysis (NDA) Time vs Displacement, Maximum Axial force, Bending moment results where the column is removed and is used as base for comparison are calculated to know the potential for progressive collapse of a structure.