摘要
本文给出结构-地基动力相互作用分析的一种直接有限元方法,可以依托大型结构分析软件完成结构-地基动力相互作用研究工作.该方法不但可以较好地模拟半无限地基的辐射阻尼,也能模拟远场地球介质的弹性恢复性能.文中同时给出了一种结构-地基动力相互作用中地震波动输入方法,可以准确模拟任意角度入射的地震行波的输入.数值算例表明本文给出的方法具有较高的精度.
This paper presents a direct finite element method for analysis of dynamic soil-structure interaction. It can be performed by use of the large general structure analysis software. The method can simulate not only the radiation damping of semi-infinite soil, but also the elasticity recovery capacity of the far field media on the boundary. A new input methods of wave motion dealing with soil-structure interaction is also proposed which can be used to exactly simulate incident seismic wave from any angle. The accuracy of the method presented in this paper is demonstrated by numerical examples.
出处
《土木工程学报》
EI
CSCD
北大核心
1998年第3期55-64,共10页
China Civil Engineering Journal
基金
国家教委开放研究实验室基金
国家自然科学基金(59578032)联合资助项目
关键词
结构-地基
动力相互作用
辐射阻尼
软件
有限元
dynamic soil - structure interaction, radiation damping, input of seismic-wave motion, general software
