考虑地基非线性的框架─筏基─土共同作用分析

Interaction Analysis of Frame─raft foundation─non─linear Soil Medium

采用有限元法，对空间框架─筏基─土系统进行分析，着重引入K－G模型，以及地基土的非线性特征。通过典型算例，分析了非线性对系统内力场和位移场的影响，研究了该模型的合理性。

In this paper,the finite element method is used to analyse the system of space frame-raft foundation-soil medium. It is emphsized on the K-G model to consider the nonlinear of the soil. The influences of the non-linear fly on the internal forces and displacements are analyzed through a typical engineering example,and the reasonableness of the model is also studied.