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Updating Robust Reliability for Bridges Using Measured Vibrational Data

Beck, J. L. and Papadimitriou, C. and Katafygiotis, L. S. (1999) Updating Robust Reliability for Bridges Using Measured Vibrational Data. In: Applications of statistics and probability : civil engineering reliability and risk analysis : proceedings of the ICASP 8 Conference, Sydney, New South Wales, Australia, 12-15 December 1999. Balkema , Rotterdam, Netherlands, pp. 667-674. ISBN 90 5809 086 8 http://resolver.caltech.edu/CaltechAUTHORS:20120926-083730959

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Abstract

The concept of robust reliability is defined to take into account uncertainties from structural modeling in addition to the uncertain excitation a structure will experience during its lifetime. A Bayesian probabilistic methodology for system identification is integrated with probabilistic structural analysis tools for the purpose of updating the assessment of the robust reliability based on dynamic test data. Methods for updating the structural reliability for both identifiable and unidentifiable models are presented. Application of the methodology to a simple beam model of a single-span bridge with soil-structure interaction at the abutments, shows that the robust reliabilities computed before and after updating with "measured" dynamic data can differ significantly.


Item Type:Book Section
Additional Information:This paper is based upon work partly supported by the Pacific Earthquake Engineering Research Center under National Science Foundation coorperative Agreement No. CMS-9701568 and the Hong Kong Research Grant Council under grants HKUST 639/95E and 6041/97E. This support is gratefully acknowledged. The assistance of graduated students Siu Kui Au, Caltech, and Hui Fai Lam, HKUST, are also gratefully acknowledged.
Funders:
Funding AgencyGrant Number
NSFCMS-9701568
Hong Kong Research Grant CouncilHKUST 639/95E
Hong Kong Research Grant CouncilHKUST 6041/97E
Record Number:CaltechAUTHORS:20120926-083730959
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120926-083730959
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34386
Collection:CaltechAUTHORS
Deposited By: Carmen Nemer-Sirois
Deposited On:13 Nov 2012 22:08
Last Modified:13 Nov 2012 22:08

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