STATISTICAL VALIDATION OF NONLINEAR PUSHOVER METHODS BY INCREMENTAL DYNAMIC ANALYSES

The present study aims to validate pushover methodology for RC frame structures by comparison with Incremental Dynamic Analysis (IDA). A high number of simulated response spectrum compatible time-histories has been used to perform incremental dynamic analyses. Different pushover procedures have been considered, i.e., conventional (first mode load distribution, uniform distribution) and adaptive pushover method (DAP). With reference to three case studies, comparison of static against dynamic results has been performed in terms of capacity curves, interstorey drift profiles, maximum top displacements and failure modes.