粘弹性人工边界的有限元分析  

The finite element analysis of viscoelastic artificial boundary

作　　者：徐浩[1] 

机构地区：[1]同济大学土木工程学院建筑工程系

出　　处：《山西建筑》2011年第9期72-73,共2页Shanxi Architecture

摘　　要：采用数值方法集中比较了工程中广泛应用的几种人工边界在SSI体系分析中的动力反应,研究结果表明:粘性边界能较好的模拟土的边界但计算的位移会发生整体的飘逸,精度也不如粘弹性边界;粘弹性边界能很好的模拟土—结构相互作用体系中土的边界问题,但实现过程比较麻烦。Concentrated compared the dynamic response of several kinds of engineering extensive application artificial boundary using numerical method in SSI system analysis. Research results showed that viscoelastic boundary can simulation soil boundary well, overall drift of calculation displacement will happen the precision is worse than viscoelastic boundary. Viscoelastic boundary can be a very good simulation for the problem of earth boundary in the soil structure interaction system, however, the realization process is so troublesome.

关 键 词：人工边界 SSI体系 粘弹性人工边界 有限元法 

分 类 号：TU411.3[建筑科学—岩土工程]