Assessment of Progressive Collapse of G+7 RC Building

A simplified framework is proposed for progressive collapse assessment of multi-storey buildings, considering sudden column loss as a design scenario.This framework can be applied at various levels of structural idealisation, and enables the quantification of structural robustness taking into account the combined influences of redundancy, ductility and energy absorption this study aims to provide the designer engineers with wider overview on this topic to minimize the consequences of buildings progressive collapse after the event of column removal scenario.A Seven storey reinforced concrete framed structure is considered in the study to evaluate the Demand Capacity Ratio (D.C.R.), the ratio of the member force and the member strength as per U.S. General Services Administration (GSA) guidelines.The Non Linear static analysis is carried out using software, STAAD PRO according to Indian Standard codes.To study the collapse, typical columns are removed one at a time, and continued with analysis and design.Many such columns are removed in different trials to know the effects of progressive analysis.Member forces and reinforcement details are calculated.From the analysis, DCR values of beams are calculated.