Lifetime Performance Analysis of Existing Reinforced Concrete Bridges. II: Application
Publication: Journal of Infrastructure Systems
Volume 11, Issue 2
Abstract
This study, being the second part of a two-part paper, presents the application of a lifetime performance analysis methodology to three reinforced concrete bridges located in an existing bridge network in Colorado. The focus of this paper is on reinforced concrete slabs and girders of these bridges. The limit state equations were previously derived in the companion paper by grouping the random variables, deterministic parameters, and constant coefficients in such a way that the formulas are applicable to reinforced concrete slabs and girders in general. The results presented in this paper for reinforced concrete slabs and girders are part of a larger study focusing on lifetime performance analysis of multiple bridge types in a selected bridge network. The bridges are individually described herein, followed by the presentation of the performance analysis results including both initial reliability indices and lifetime reliability profiles. Once the values associated with random variables, deterministic parameters, and constant coefficients are assigned, component reliability indices for the slab and the girders are calculated for each bridge. Detailed results are presented for an individual bridge, whereas the lifetime reliability profiles are presented for all bridges. For time-variant performance analysis, special emphasis is placed on the chloride penetration modeling in reinforced concrete, theoretical basis of which was presented in the companion paper.
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Acknowledgments
The partial financial support of the U.S. National Science Foundation through Grant Nos. CMS-9912525 and CMS-0217290 is gratefully acknowledged. The support provided by the Colorado Department of Transportation is also gratefully acknowledged. The writers wish to thank Professor Ross B. Corotis for his useful remarks on different aspects of this paper. The opinions and conclusions presented in this paper are those of the writers and do not necessarily reflect the views of the sponsoring agencies.
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Information & Authors
Information
Published In
Journal of Infrastructure Systems
Volume 11 • Issue 2 • June 2005
Pages: 129 - 141
Copyright
© 2005 ASCE.
History
Received: Dec 23, 2002
Accepted: Feb 3, 2004
Published online: Jun 1, 2005
Published in print: Jun 2005
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