框架结构静力弹塑性分析方法与非线性动力分析方法的对比  

Comparison of the RC Structures with the Results Provided by Nonlinear Static Push-over and Dynamic Analysis

作　　者：程小燕[1] 薛彦涛[1] 刘子华[2] 

机构地区：[1]中国建筑科学研究院,北京100013 [2]中国人民解放军总医院营房处,北京100039

出　　处：《工程抗震与加固改造》2008年第5期8-13,23,共7页Earthquake Resistant Engineering and Retrofitting

摘　　要：介绍了静力弹塑性(Pushover)和非线性动力基本分析方法和原理,为了探讨两种方法下结构分析的差异,对一按现行抗震规范设计的8层钢筋混凝土结构进行了3条地震波作用下的时程分析和5种侧向加载方式的静力弹塑性分析。通过结果的比较,提出对现行规范反应谱中长周期结构罕遇地震作用取值修改的建议。修改后,由两种方法分析所得到的结构在大震下的顶点位移、基底剪力、楼层位移和层间位移等结构反应非常接近。In this paper, the basic principles and methods of the static elasto-plastic analysis（Pushover analysis） and inelastic dynamic analysis are reviewed. To find out the difference, at the same time, comparison between nonlinear time history analysis emplaying three typcical earthquake records and pushover analysis five typical load patterns on a RC building according to the Code for seismic design of building （GB 50011-2001 ） is undertaken. And then some limintations about the long period structures are found in the spectral response acceleration in the code for seismic design of buildings. Thoughout the change of the code, the structural response is compared in terms of the base shear-top displacement curves and of story drifts and interstory drifts.

关 键 词：静力弹塑性分析法 时程分析法 规范反应谱 

分 类 号：TU313.3[建筑科学—结构工程]