Risk-based maintenance optimization of bridge structures

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Conference2nd International Colloquium on Advanced Structural Reliability Analysis Network (ASRANet), Organized by International Center for Numerical Methods in Engineering: 05 July 2004, Barcelona, Spain
Pages19; # of pages: 9
Subjectbridges, maintenance optimization, multi-criteria optimally index, risk analysis; Bridges
AbstractThis paper presents an approach for bridge maintenance optimization that takes into account several and possibly conflicting criteria, with emphasis on risk of failure as a governing criterion. The optimal maintenance strategy is defined as the solution that achieves the best compromise between three selected relevant and conflicting criteria: minimization of risk of failure, minimization of maintenance costs, and minimization of traffic disruption. Compromise programming is used to determine the optimal ranking of the maintenance strategies in terms of their effectiveness in risk reduction, cost minimization, and traffic control. A multi-criteria optimality index is proposed as a measure of the effectiveness of the optimal maintenance strategy in achieving a satisfactory trade-off between the above relevant and competing maintenance criteria. The proposed approach is illustrated on a small network of ten bridge projects that are optimized for maintenance by considering the three selected criteria. The weighted and non-weighted multi-criteria indices are generated for these projects.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number47063
NPARC number20377639
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Record identifier64c815bf-e417-4dc0-b891-b79099c12e86
Record created2012-07-24
Record modified2016-05-09
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