The Research of Applied Pushover Method in the Earthquake Resistance Analysis of Soil-Structure Interaction System

Abstract eng:
The non-linear earthquake resistance analysis of soil-structure interaction system is complex. The time history analysis method of non-linear earthquake resistance analysis is a well fitted method, but it is difficult to use because of the complexity of analysis model and uncertain input of earthquake motion. As a simplified method, pushover method has been widely applied in the capability evaluation of structure earthquake resistance. In the paper the pushover method was applied to study seismic behavior of frame-shearwall structure considered soil-structure interaction. The plane frame-shearwall structure of tall building was taken as a research model, the structure was simulated by beam element, and the ground was simulated by parameter model. Firstly the non-linear time history analysis method was adopted to analyses the top displacement, story drift and the order of yield of the model. Then based on the result of the non-linear time history analysis method, the applicability of pushover method in soil-structure interaction system was studied. Finally pushover method was applied to analysis the structure earthquake resistance capability of frame-shearwall structure consideried soil-structure interaction.

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