土与结构相互作用简捷计算方法  

A Simple Analysis Method of Soil-Structure Interaction System

作　　者：张国栋[1] 

机构地区：[1]三峡大学土木水电学院,湖北宜昌443002

出　　处：《三峡大学学报（自然科学版）》2003年第6期481-483,共3页Journal of China Three Gorges University：Natural Sciences

基　　金：湖北省教育厅科学研究基金资助项目;三峡大学科学研究基金资助项目

摘　　要：由于结构与土体阻尼,土与结构相互作用系统差异是非比例阻尼系统,地震响应分析的振型叠加方法不能应用于非比例阻尼系统,利用阻尼分区结合法,截取一定数量的无阻尼模态坐标,然后直接积分变换的耦合运动方程分析非比例阻尼系统,计算表明该方法具有较高的计算效率,概念明确,便于工程应用.A soil-structure interaction system is a system with non-proportional damping. The standard mode superposition method of earthquake response analysis therefore cannot he applied to non-proportional damped structures. In this paper, several methods for analyzing non-proportional damped structures are outlined and Appiled with method of the various parts using standard structural properly assembly procedures. The proposed method for analyzing a system with non-proportional damping is tested by carrying out the earthquake response analysis of soil-structure interaction system.

关 键 词：土体 非比例阻尼 地震响应 振型叠加法 地震荷载 

分 类 号：TU44[建筑科学—岩土工程]