Progressive Collapse Analysis of G+6 Irregular Reinforced Concrete Framed Structure

Abstract

Progressive collapse is a catastrophic failure mode that happens when a building element experiences a localized failure that sets off a series of structural problems that eventually cause the entire structure to collapse. Under severe loading circumstances, irregularities in plan, elevation, mass distribution, and stiffness can have a substantial effect on these buildings’ structural reaction. Literature findings indicate that irregular frames exhibit increased brittleness and are more prone to collapse compared to regular frames under seismic actions. The goal of this project work is to address the unique problems related to the performance and design of irregular structures during seismic occurrences. This research project work strives to analyse progressive collapse scenarios and fragility of a given G+6 RC building, which is now the challenge in the current advancement and the understanding of their behavior at different levels. The use of a probabilistic approach is seen to evaluate the structure and develop fragility curves as well as resilience measures. Fragility analysis goes to be an integral part of damage analysis from a natural disaster like earthquake and flood. After analyzing intact building using SAP2000 V20 software, we can conclude that the software has provided us with the accurate results to validate the research process following Indian standard codes. The investigation comprise a combination for static and non-linear method using SAP2000.