The Accuracy of Advanced Pushover Analysis Methods in Estimating of Seismic Responses of Steel Moment Frames

In recently years, researchers in order to eliminate the shortcomings oftraditional push over analysis have presented different advance push overanalysis methods. These analysis methods import factors such as highermode effect, interaction of modes, changes of structural stiffness duringanalysis and etc, in analysis which don’t exists in traditional push overanalysis. In this study to peruse accuracy of advanced push over analysismethods in estimating of seismic responses of steel moment framestructures, the results of two different advanced push over analysis havebeen compared with the results of nonlinear time history analysis. Byevaluating the results of these comparisons, this result has been obtainedwhich advanced push over analysis that have been used in this study, havenot good performance in estimation of drift angle response of steel momentframes that is important parameter in structural damage. Also, theseanalysis methods in estimation of story shear response had weakperformance and the responses of them were inacceptable.

Keywords:

pushover analysis , nonlinear time history analysis , shear story , drift angle