Some Improvement on Pushover Analysis Procedure

In this paper, some limitations of pushover analysis procedure are indicated after investigations of its basic method. The numbers of the principle modes controlling the structural seismic response are calculated by means of modal partition weight. Two-stage lateral load pattern, based on the load pattern of modal pushover analysis procedure and the improvement of method for target displacements are put forward. The simulation of the earthquake response of a optimization steel frame structure by using both the non-linear time history analysis and the improved pushover analysis procedure shows that the simulation of the structural seismic response with the improved pushover analysis procedure is simpler more and accurate than others.