Seismic Performance of Offset Irregular Building

Abstract

Abstract: Here in this offset irregularity, the vertical members bearing horizontal force are located on other axes rather than its own axes. A 15-storey offset irregular building is modelled in SAP2000 software based on the codal provisions. Then pushover analysis is performed in which spectral displacements and base shears are examined in both X and Y directions. Fragility curves are developed to determine the failure probability of offset irregular building in slight, moderate, extensive and complete damage states.