一种简便的刚架结构可靠性分析方法  

Handy Method for Reliability Analysis of Frame Structure

作　　者：李艺[1] 刘斌[1] 车维毅[2] 康玉梅[1] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]辽宁大学数学系,辽宁沈阳110036

出　　处：《东北大学学报（自然科学版）》2002年第7期700-702,共3页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目 (4 0 0 72 0 0 6)

摘　　要：首次将结构连续变更定理用于刚架结构的可靠性分析 ,并将该定理与概率计算、分枝定界法相结合对系统加以分析 ,计算结构总体失效概率·避免了总刚反复组装、求逆 ,大大简化了繁琐的运算 ,为结构系统失效提供了新判据·实现了变化结构的连续结构分析 。The theorem of structural continual variation was used in first time to analyze reliability of frame structure. The method was combined with probability analysis and with branch and bound method to evaluate the system. Continually assembling global stiffness matrix and repeatedly inverse matrix operating are avoided in the new method. A new criterion of system failure was introduced. Continual analysis of variational structure can be realized. The efficiency of the reliability analysis is increased by the method to offer satisfactory results in an example.

关 键 词：可靠性分析 刚架结构 结构连续变更定理 分枝定界法 失效链 失效模式 

分 类 号：TU311.2[建筑科学—结构工程]