静力和动力荷载作用下混凝土高层结构的倒塌模拟  

Collapse Simulation of High-Rise Structure of Concrete under the Action of Static and Dynamic Load

作　　者：陆新征[1] 缪志伟[1] 江见鲸[1] 叶列平[1] 

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《山西地震》2006年第2期7-11,18,共6页Earthquake Research in Shanxi

基　　金：高等学校博士学科点专项科研基金(No.20040003095);教育部科学技术研究重点(重大)项目(No.704003)资助

摘　　要：在M SC.M arc有限元分析软件程序的基础上,开发了针对钢筋混凝土杆系结构的钢筋混凝土纤维模型程序THU F IBER。在该程序中,结构构件中的混凝土和钢筋分别用不同的纤维来模拟,从而使得材料滞回特性得到较准确的表达。为了验证本程序的计算能力,本文针对一个钢筋混凝土高层框架结构进行了静力弹塑性分析和动力时程分析,结果表明,THU F IBER具有出色的分析非线性问题的能力,可以进行结构倒塌模拟。Based on program of MSC. Marc finite element analysis software, a program THUFIBER for fiber model of pole system structure of ferroconcrete is developed. In the program, concrete and rebar in component of construction are simulated separately by different fibers, expressing more accurately hysteretic property of material. In order to test calculation ability of the program, static elastic-plasticity analysis and dynamic time history analysis on a high-rise frame structure of reinforced concrete are carried out by using this program in the paper. The result indicates that THUFIBER has remarkable ability to analyze nonlinear problems and can simulate collapse of structure.

关 键 词：地震 纤维模型 混凝土 倒塌模拟 

分 类 号：P315.9[天文地球—地震学]