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Structural Research Series 529PDF


Title:Structural System Reliability by the Method of Stable Configuration
Author(s):Quek, S-T.; Ang, A.H-S.
Subject(s):System reliability
Failure Probability
Abstract:A practical approach for the reliability analysis of structural systems is presented. Approximations and simplifications to the theoretical stable configuration approach (SCA) are derived from the cut-set formulation based on the dominant physical configurations of a given structure. Implementation of the proposed method involves the reliabilities of the initial configuration and those of the dominant configurations (corresponding to one failed component). The geometric average of the second-order bounds for the probability of the union of failure events is used in the computation of the failure probability of each configuration. This estimate is then" used as a criterion for selecting other dominant configurations (corresponding to more failed components). The final system reliability is estimated through the intersection of events corresponding to all the selected dominant configurations. A number of illustrative problems were examined and the results used also to validate the accuracy of the proposed SCA. The method was shown to be particularly effective for the class of structural systems composed of brittle components.
Issue Date:1986-11
Publisher:University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report:Civil Engineering Studies SRS-529
Genre:Technical Report
Sponsor:National Science Foundation Grant MSM 85-18005
Date Available in IDEALS:2009-11-03
Identifier in Online Catalog:1174418

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