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The Use of Lifetime Functions in the Optimization of Interventions on Existing Bridges Considering Maintenance and Failure Costs by Seung-Ie Yang; Dan M. Frangopol; Yoriko Kawakami; Luís C. Neves is a Engineering article available to read on EtoBox.

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In the last decade, it became clear that life-cycle cost analysis of existing civil infrastructure must be used to optimally manage the growing number of aging and deteriorating structures. The uncertainties associated with deteriorating structures require the use of probabilistic methods to properly evaluate their lifetime performance. In this paper, the deterioration and the effect of maintenance actions are analyzed considering the performance of existing structures characterized by lifetime functions. These functions allow, in a simple manner, the consideration of the effect of aging on the decrease of the probability of survival of a structure, as well as the effect of maintenance actions. Models for the effects of proactive and reactive preventive maintenance, and essential maintenance actions are presented. Since the probability of failure is different from zero during the entire service life of a deteriorating structure and depends strongly on the maintenance strategy, the cost of failure is included in this analysis. The failure of one component in a structure does not usually lead to failure of the structure and, as a result, the safety of existing structures must be anal

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Author

Seung-Ie Yang; Dan M. Frangopol; Yoriko Kawakami; Luís C. Neves

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0951-8320)

Published

2006

Language

EN

Field

Engineering (Physical Sciences)