Structural reliability updating and damage assessment with Bayesian networks
Received:July 10, 2012  Revised:September 27, 2012
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DOI:10.7511/jslx201305004
KeyWord:reliability updating  damage assessment  Bayesian network  system modeling  variables elimination
           
AuthorInstitution
孙鸿宾 西北工业大学 力学与土木建筑学院, 西安
吴子燕 西北工业大学 力学与土木建筑学院, 西安
罗阳军 西北工业大学 力学与土木建筑学院, 西安
阳盛锋 西北工业大学 力学与土木建筑学院, 西安
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Abstract:
      This paper discusses a new computational framework for structural reliability updating and damage assessment while traditional reliability method can't handle discrete variables and update.System modeling of traditional Bayesian network was developed with continuous variables discretization and elimination and conditional probability table was computed by structural reliability method.When evidence was available,it facilitated structural reliability updating and damage assessment.The method was applied to:(1) the updating of reliability of a frame; (2) assessment of the damage of two sections if the frame would fail.Contrast to Monte Carlo method shows validity and accuracy of the method proposed.