Record number :
1571613
Title of article :
Reliability-based failure cause assessment of collapsed bridge during construction
Author/Authors :
Choi، نويسنده , , Hyun-Ho and Lee، نويسنده , , Sang-Yoon and Choi، نويسنده , , Il-Yoon and Cho، نويسنده , , Hyo-Nam and Mahadevan، نويسنده , , Sankaran، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Pages :
15
From page :
674
To page :
688
Abstract :
Until now, in many forensic reports, the failure cause assessments are usually carried out by a deterministic approach so far. However, it may be possible for the forensic investigation to lead to unreasonable results far from the real collapse scenario, because the deterministic approach does not systematically take into account any information on the uncertainties involved in the failures of structures. ility-based failure cause assessment (reliability-based forensic engineering) methodology is developed which can incorporate the uncertainties involved in structural failures and structures, and to apply them to the collapsed bridge in order to identify the most critical failure scenario and find the cause that triggered the bridge collapse. Moreover, to save the time and cost of evaluation, an algorithm of automated event tree analysis (ETA) is proposed and possible to automatically calculate the failure probabilities of the failure events and the occurrence probabilities of failure scenarios. Also, for reliability analysis, uncertainties are estimated more reasonably by using the Bayesian approach based on the experimental laboratory testing data in the forensic report. For the applicability, the proposed approach is applied to the Hang-ju Grand Bridge, which collapsed during construction, and compared with deterministic approach.
Keywords :
Forensic Engineering , Bayesian approach , Failure cause , Event tree analysis
Journal title :
Reliability Engineering and System Safety
Journal title :
Reliability Engineering and System Safety
Serial Year :
2006
Link To Document :
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