PROGRESSIVE COLLAPSE OF COMPOSITES STRUCTURES

The objective of this study is to investigate the progressive collapse of composite structures. For this G+20 building has been taken. For this linear static analysis and linear dynamic analysis, of structure has been carried out. The behavioral changes have been investigated to the sudden collapse of structures. The composite structure is design based on Indian Standard code of practice is considered. The investigation is carried out using ETABS software. Progressive collapse is to be considered for analysis as given by the US General services administration (GSA).Percentage change in the values of demand capacity ratio, base shear and roof displacement considering progressive collapse effect of structures were carried out. This simple analysis is used to analysis the structures for different failure conditions and then optimize it for various threat scenarios.