Risk-based maintenance optimization of aging highway bridge decks

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ConferenceBuilding Science Insight 2006/07 - Sustainable Infrastructure: Techniques, Tools & Guidelines: 01 September 2006,
AbstractThis paper presents a practical approach for maintenance optimization of a network of aging highway bridge decks that integrates a stochastic deterioration model based on Bogdanoff's cumulative damage theory with an effective multi-objective optimization approach. The multi-objective maintenance optimization takes into account all relevant objectives, such as improving bridge deck condition, minimizing maintenance costs, and minimizing traffic disruption and associated user costs. The consideration of these three objectives enables to take full advantage of the available bridge inspection data and implicitly lead towards the minimization of the risk of failure due to bridge deck deterioration and maintenance activities. A multi-objective optimality index is proposed as an optimality criterion for priority ranking of the deficient bridge decks for maintenance. The obtained optimal maintenance project prioritization strategy achieves a satisfactory trade-off or compromise between the selected relevant and competing optimization objectives. The proposed approach is illustrated on a small network of ten bridge deck projects that are optimized for maintenance.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
NoteAlso published in the proceedings of an international conference on advances in engineering structures, mechanics & construction, held in Waterloo, Ontario, Canada, May 14-17, 2006, pp. 723-734
Peer reviewedYes
NRC number48383
NPARC number20378211
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Record identifier300d4de2-1cba-4aa2-a37b-3e6518f2e8ae
Record created2012-07-24
Record modified2016-05-09
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