行波输入下土层有限元网格的划分原则  

Partition principle of the finite element meshes of soil under traveling wave excitations

作　　者：白建方[1,2] 楼梦麟[2] 

机构地区：[1]石家庄铁道学院土木工程分院,河北石家庄050043 [2]同济大学土木工程防灾国家重点实验室,上海200092

出　　处：《世界地震工程》2009年第1期48-51,共4页World Earthquake Engineering

基　　金：国家自然科学基金重点项目(50538050)

摘　　要：在行波输入下,用有限单元法分析土层地震反应时会遇到土层与基岩接触面如何离散化的问题。文中指出了在此情况下传统的有限元网格划分中存在的问题,并结合数值试验给出了沿行波输入方向进行土层有限元网格划分的原则。Under traveling wave excitations, how the surface between soil and rock is divided by the finite element method in the seismic response analysis of soil, which is an impertant problem. The drawback of the tradition method dealing this problem is pointed out in this paper. Based on the results of numerical experiments, the principle of determining the dimension of the finite element meshes of the soil analysis model under traveling wave excitations is studied.

关 键 词：行波输入 有限单元法 土层地震反应 网格划分 

分 类 号：TU435[建筑科学—岩土工程]