高层结构与土动力相互作用分析的耦合法

Dynamic soil and high rise structure interaction analysis by coupling method

文章导出了特解边界元与动力有限元的耦合方程，并使耦合方程的自由度缩减到有限元域及其和边界元域的耦合边界上。这样得到的耦合方程不增加原有限元方程的带宽，易于计算机编程。

The coupling equation of particular solution boundary element (BE) and finite element (FE)is derived. The freedom of coupling equation is reduced so that not only the freedom of finite element domain but also that of coupling boundary of both FE domain and BE domain are included. The equation does not increase the width of the matrix of original finite element equation,and it is easy to be programmed. Numerical analysis of shear wall and soil system is also given.