摘要
采用层内位移线性近似的薄层元及基岩半空间刚度的Ｔａｙｌｏｒ级数展开技术，利用基岩地震动三分量反算入射波振幅，建立了层状半空间场地地震波响应分析的一种改进模型，分析了层状半空间对倾斜入射ＳＨ，ＳＶ和Ｐ波的动力响应．结果表明，本文模型不仅具有较高精度。
In this paper, an efficient analysis method to calculate the response of layered halfspace subjected to arbitrary incident seismic waves is presented in algebraic matrix forms. The method is based on the substructure technique. The interaction between layered soil and halfspace is considered through the relationship between displacement and force at the interface which is solved together with the discrete equations of layered soil. The result shows that the method developed in this paper has the advantage of high accuracy and suitable for computer program.
出处
《力学学报》
EI
CSCD
北大核心
1997年第1期123-127,共5页
Chinese Journal of Theoretical and Applied Mechanics
关键词
层状半空间
地震波
子结构法
layered halfspace, seismic waves, algebraic expression, substructure technique
