Verification of displacement-based adaptive pushover through multi-ground motion incremental dynamic analyses

The present study aims at validating pushover methodologies for RC frame structures through comparison with Incremental Dynamic Analysis (IDA). A large number of simulated response spectrum compatible time-histories has been used to perform incremental dynamic analyses, and results are analyzed in a statistical manner. Three different pushover procedures have been considered, i.e., conventional (first mode load distribution, uniform load distribution) and Displacement-based Adaptive Pushover (DAP) methods. With reference to three case studies, comparison of static against dynamic results has been carried out in terms of capacity curves, interstorey drift profiles, maximum top displacements and failure modes.

[1]  Anil K. Chopra,et al.  A modal pushover analysis procedure for estimating seismic demands for buildings , 2002 .

[2]  Rui Pinho,et al.  ADVANTAGES AND LIMITATIONS OF ADAPTIVE AND NON-ADAPTIVE FORCE-BASED PUSHOVER PROCEDURES , 2004 .

[3]  Sashi K. Kunnath,et al.  Identification of Modal Combinations for Nonlinear Static Analysis of Building Structures , 2004 .

[4]  Amr S. Elnashai,et al.  Advanced inelastic static (pushover) analysis for earthquake applications , 2001 .

[5]  Sashi K. Kunnath,et al.  Adaptive Spectra-Based Pushover Procedure for Seismic Evaluation of Structures , 2000 .

[6]  Andrei M. Reinhorn,et al.  Inelastic analysis techniques in seismic evaluations , 2019, Seismic Design Methodologies for the Next Generation of Codes.

[7]  Sashi K. Kunnath,et al.  Adaptive Modal Combination Procedure for Nonlinear Static Analysis of Building Structures , 2006 .

[8]  J. Mander,et al.  Theoretical stress strain model for confined concrete , 1988 .

[9]  Sashi K. Kunnath,et al.  Seismic Performance and Retrofit Evaluation of Reinforced Concrete Structures , 1997 .

[10]  Dimitrios Vamvatsikos,et al.  Incremental dynamic analysis , 2002 .

[11]  Anil K. Chopra,et al.  Evaluation of a Modified MPA Procedure Assuming Higher Modes as Elastic to Estimate Seismic Demands , 2004 .

[12]  Sashi K. Kunnath,et al.  Assessment of current nonlinear static procedures for seismic evaluation of buildings , 2007 .

[13]  Rui Pinho,et al.  DEVELOPMENT AND VERIFICATION OF A DISPLACEMENT-BASED ADAPTIVE PUSHOVER PROCEDURE , 2004 .

[14]  Enrique Hernández-Montes,et al.  AN ENERGY-BASED FORMULATION FOR FIRST-AND MULTIPLE-MODE NONLINEAR STATIC (PUSHOVER) ANALYSES , 2004 .

[15]  Amr S. Elnashai.  DO WE REALLY NEED INELASTIC DYNAMIC ANALYSIS? , 2002 .