结构—土壤骨架—孔隙水耦合问题的非线性动力分析

Nonlinear Dynamic Analysis of Structure-Soil Structure-Porous Water Coupled Boundary

本文应用两相介质饱和水土壤的广义Biot方程,进行结构一土壤耦合系统的非线性动力求解。通过对结构最高级子结构的动力修正,将结构凝聚到结构一土壤的耦合界面上,得出了仅包含土壤内部和界面自由度的非线性动力方程,并利用显式积分方案对其求解,获得了土壤和结构在地震荷载下的响应。

This paper applies the Generalized Biot Formulation of two media saturated water soil to solve the nonlinear dynamic problem of structure -soil couple system. The nonlinear dynamic equation is obtained containing only freedom in soil and on the boundary with the dynamic correction o{ the highest substructure o( the structure to the coupled boundary between soil and structure. The explicit integral scheme is used to solve it and the seismic response of soil and structure system is obtained.