层状半空间中单桩对任意入射地震波的响应

本文以任意入射地震波作为初始运动输入，采用层状半空间中显式表达形式的动力Ｇｒｅｅｎ函数形成阶－土相互作用分析所需的土介质柔度矩阵，用梁单元模拟桩的运动，在文献［５］的基础上，建立了层状半空间中单桩对任意入射地震波响应的实用计算模型，研究了层状半空间中单桩对不同角度入射ＳＨ波、ＳＶ波和Ｐ波的动力响应，得到了一些新的结果。

Response of single pues embedded layered halfspaces to arbitrary incident seismic waves

Based on the literature5],an advanced method to calculate the response of single pilesembedded in layered halfspaces to arbitrary incident seismic waves is presented.The pile isrepresented by beam element and the soil as a layered halfspace.The arbitrary incident seis-mic waves are applied to the primitive input motion of pile foundations.The explicit Green',sfunction corresponding to dynamic loads in the interior of layered halfspace,developed earlierby Kausel and Seale is used in the study. The resultsof a numerical study on the behavior ofsingle piles embedded in layered halfspaces subjected to SH,SV and P waves with differentangles of incidence are presented.It is shown that the method developed in this paper has theadvantage of high accuracy and less computational time.