J4 ›› 2009, Vol. 36 ›› Issue (5): 916-920.

• 研究论文 • 上一篇    下一篇

结构安全系数和非概率可靠性度量研究

乔心州;仇原鹰   

  1. (西安电子科技大学 电子装备结构教育部重点实验室,陕西 西安  710071)
  • 收稿日期:2008-06-16 出版日期:2009-10-20 发布日期:2009-11-30
  • 通讯作者: 乔心州
  • 基金资助:

    教育部留学回国人员实验基金资助(030401)

Study of safety factors and non-probabilistic reliability measures of structures

QIAO  Xin-zhou;QIU Yuan-ying   

  1. (Ministry of Education Key Lab. of Electronic Equipment Structure, Xidian Univ., Xi'an  710071, China)
  • Received:2008-06-16 Online:2009-10-20 Published:2009-11-30
  • Contact: QIAO Xin-zhou

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.

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

Abstract:

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.

Key words: safety factor, non-probabilistic reliability, reliability index, set-theoretic reliability measure, interval variables

中图分类号: 

  • TB114.3