Journal
RELIABILITY ENGINEERING & SYSTEM SAFETY
Volume 99, Issue -, Pages 139-150Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ress.2011.11.007
Keywords
Crawl-test; Finite element; Updating; Reliability; Lifetime; Bridges
Funding
- National Science Foundation [CMS-0638728, CMS-0639428]
- Commonwealth of Pennsylvania, Department of Community and Economic Development
- US Federal Highway Administration [DTFH61-07-H-00040]
- US Office of Naval Research [N00014-08-1-0188]
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The importance of improving the understanding of the performance of structures over their lifetime under uncertainty with information obtained from structural health monitoring (SHM) has been widely recognized. However, frameworks that efficiently integrate monitoring data into the life-cycle management of structures are yet to be developed. The objective of this paper is to propose and illustrate an approach for updating the lifetime reliability of aging bridges using monitored strain data obtained from crawl tests. It is proposed to use automated finite element model updating techniques as a tool for updating the resistance parameters of the structure. In this paper, the results from crawl tests are used to update the finite element model and, in turn, update the lifetime reliability. The original and updated lifetime reliabilities are computed using advanced computational tools. The approach is illustrated on an existing bridge. (C) 2011 Elsevier Ltd. All rights reserved.
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