多维多点地震作用下某体育馆的动力响应分析  

Seismic Response of a Gymnasium Under Multi-dimensional and Multi-support Excitations

作　　者：陈海忠[1,2] 朱宏平[1,2] 蔡振[3] 閤东东[1,2] 

机构地区：[1]华中科技大学土木工程与力学学院 [2]华中科技大学控制结构湖北省重点实验室湖北 [3]中国人民解放军96657部队

出　　处：《华中科技大学学报（城市科学版）》2009年第2期12-15,共4页Journal of Huazhong University of Science and Technology

基　　金：国家自然科学基金(50778077)

摘　　要：大跨空间结构受到的地震作用是多维多点的,结构受力情况十分复杂。本文采用时程分析法对某体育馆大跨空间结构进行多维多点输入下的地震响应分析,并与多维一致输入下的结构响应进行对比,考查了两种输入方法下结构杆件内力的分布特点,并进行了对比分析。得到在多维多点输入和多维一致输入下结构响应的差异,为结构设计提供参考。The dynamic characteristics under multi-dimensional and multi-support excitation are analysis to compare the structure response under multi-dimensional and simple-support excitation. The seismic excitation of space lattice structures is not only multi-dimensional but also multi-support, so ground motions are very complicated. The dynamic responses of a gymnasium subjected to multi-dimensional and muhi-support excita- tion, as well as to multi-dimensional and simple-support excitation are thoroughly analyzed based on time his- tory response analysis. The characteristics of the force distribution of members under these two kinds of earth- quake motions are studied and compared. The response differences are also carried out between two excitations and the results provide the useful references for the structure design.

关 键 词：大跨空间结构 动力响应 时程分析 多维多点输入 一致输入 

分 类 号：TU393.3[建筑科学—结构工程]