Analysis of Life-Cycle Maintenance Strategies for Concrete Bridge Decks
Publication: Journal of Bridge Engineering
Volume 9, Issue 3
Abstract
This paper presents the development of a project-level decision support tool for ranking maintenance scenarios for concrete bridge decks deteriorated as a result of chloride-induced corrosion. The approach is based on a mechanistic deterioration model and a probabilistic life-cycle cost analysis. The analysis includes agency and user costs of alternative maintenance scenarios and considers uncertainties in the agency cost and the corrosion rate in the deterioration model. The tool presented in this paper can be used to find the optimal condition index of a given bridge deck that minimizes life-cycle cost. Based on the results obtained on three existing bridge decks, it is shown that the total life-cycle cost (user cost plus agency cost) is a nonlinear function of the maximum tolerable condition of the deck, and that for a practical range of the relationship between total life-cycle cost and is convex.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 9 • Issue 3 • May 2004
Pages: 250 - 258
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Apr 8, 2002
Accepted: Aug 14, 2003
Published online: Apr 15, 2004
Published in print: May 2004
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