应用σ准则法识别结构系统的主要失效模式  

A Modified Method to Identify Significant Failure Modes of Structure

作　　者：姚凯[1] 杜文龙[1] 

机构地区：[1]后勤工程学院军事建筑工程系,重庆400041

出　　处：《重庆建筑》2011年第1期45-47,共3页Chongqing Architecture

摘　　要：结构的主要失效模式是计算结构系统可靠度的第一步。本文提出"准则法"来识别结构系统的主要失效模式,首先用Moses的利用率比作为判断准则的工程准则法来确定最严重元和次严重元,与最严重元对应的失效模式可采用优化准则法方便地找出,然后用准则寻找与次严重元对应的主要失效模式,此方法不易漏掉主要失效模式,且计算量小。The first step to calculate structure system reliability is to identify significant failure modes of structure.In this paper,the ＂method＂ is presented to solve the problem.Based on radio of bearing forces of element in engineering method,the first step is to confirm the most and the secondary serious elements and to find out the first passel of significant failure modes.Then the rest significant failure modes are found out by applying Rule.The application of Method is not likely to miss significant failure modes and has few calculations.

关 键 词：σ准则 失效模式 结构系统可靠性 

分 类 号：TU311.2[建筑科学—结构工程]