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

• Original Articles • Previous Articles     Next Articles

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 E-mail:xzqiao@mail.xidian.edu.cn

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

CLC Number: 

  • TB114.3