中震下基于位移的RC高层框架结构失效相关性分析  

Failure Dependence Analysis of RC High-rise Frame Structures under Moderate Earthquakes Based on Displalement

作　　者：朱俊锋[1] 梅群[1] 王东炜[2] 

机构地区：[1]河南科技大学建筑工程学院,河南洛阳471003 [2]郑州大学土木工程学院,河南郑州450002

出　　处：《河南科技大学学报（自然科学版）》2009年第6期64-67,共4页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(50178064);河南科技大学博士科研启动基金项目;河南科技大学青年研究基金(2008QN020)

摘　　要：为了简化结构体系可靠度的计算,有必要研究失效相关性问题。文中以层间变形失效为主要失效模式,采用Monte-Carlo方法,在中震作用下对RC高层框架结构进行了失效相关性研究。研究结果表明:钢筋混凝土高层框架结构在中震作用下,各层之间的失效既不是完全统计相关的,也不是完全统计独立的;失效相关的层间数约占总层数的1/2,失效相关的层间主要集中在结构的中下部。In order to simplify the calculation of structural system reliability,it is necessary to study the problem of failure dependence.In this paper,the failure dependences of RC high-rise frame structures are studied by using Monte-Carlo method under moderate earthquakes based on storey drift.The study results indicates that the failures of different stories of reinforced concrete high-rise frame structures are neither absolutely independent nor absolutely dependent.The number of failure dependent stories of frame structures accounts for one-half the number of total stories under moderate earthquakes,which concentrates on the middle and lower part of structure.

关 键 词：体系可靠度 框架结构 失效相关性 

分 类 号：TU311.2[建筑科学—结构工程]