影响大型复杂机械钢结构系统可靠性的因素分析  

Analysis on the Factors Influencing the Reliability of Large Complex Steel-structured System

作　　者：杨瑞刚[1] 徐格宁[2] 

机构地区：[1]太原理工大学机械学院,太原030024 [2]太原科技大学机电学院

出　　处：《中国安全科学学报》2007年第11期16-20,共5页China Safety Science Journal

基　　金：山西省青年自然科学基金资助(2006021029);"十一五"国家科技支撑计划项目04课题(2006BAK02B04)

摘　　要：以结构力学为理论依据,以有限单元法为基础,借助和参考有关有限元程序设计方法,按照结构系统可靠性失效模式分析的要求,采用编程语言研制成功基于有限元的可靠性分析软件RAPS(Reliability Analysis Program of Structure based on FEM),运用该软件对立体车库钢结构的可靠性进行具体的分析;对判定结构系统失效与否的失效准则进行讨论和分析,并针对立体车库钢结构,得出合理的失效准则和系统可靠度的计算方法;通过实例说明约界参数CAP、失效路径长度和系统复杂程度对失效准则和系统可靠度结果的影响。Based on structure mechanics theory, method of finite elements, and the design method of finite element program, a SRAP（ Structure Reliability Analysis Program Based on Finite Element Method） software is developed by use of programming languages according to the analysis requirements of failure modes of structure system reliability. Then, this software is used to analyze the reliability of steel structure of space garages and to analyze and discuss the failure judgment criterion of structure system. Thereby, the failure criterion and system reliability calculation method are obtained for the steel structure of space garage. Finally, the effect of control ambit parameters（ CAP）, length of failure paths and system complexity on system reliability are demonstrated by an example.

关 键 词：约界参数(CAP) 失效路径长度 钢结构 结构系统可靠性 失效模式 失效准则 

分 类 号：X913.4[环境科学与工程—安全科学] N945.17[自然科学总论—系统科学]