摘要
研究了用区间变量描述不确定参数时,结构安全系数和非概率可靠性度量及其相互关系.讨论了中心、非概率及区间三种安全系数的关系.对可靠性指标、集合可靠度两种非概率可靠性度量进行了对比分析.最后建立了安全系数和非概率可靠性度量的函数关系.研究结果拓展了结构非概率设计理论.
The safety factors, the non-probabilistic reliability measures and their interrelations are investigated, when interval variables are utilized to describe the uncertain parameters of structures. First, three kinds of safety factors named central, non-probabilistic and interval factors are discussed. Then a comparison between two kinds of non-probabilistic reliability measures, which are reliability index and set-theoretic reliability measure, is made. Finally, the functions of the safety factors and the non-probabilistic reliability measures are established. The results extend the non-probabilistic design theory of structures.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2009年第5期916-920,共5页
Journal of Xidian University
基金
教育部留学回国人员实验基金资助(030401)
关键词
安全系数
非概率可靠性
可靠性指标
集合可靠度
区间变量
safety factor
non-probabilistic reliability
reliability index
set-theoretic reliabilitymeasure
interval variables
