Prediction of Reliability and Cost Profiles of Deteriorating Bridges under Time- and Performance-Controlled Maintenance
Publication: Journal of Structural Engineering
Volume 130, Issue 12
Abstract
The reliability of civil infrastructure is time variant. This is due to strength deterioration and time-variant mechanical and environmental loadings. Demands for keeping civil infrastructure in functional and reliable states require maintenance interventions. Limited financial resources require optimal maintenance strategies. These strategies have to consider the effects of uncertainties not only on the structural reliability deterioration but also on the maintenance interventions. In this paper, a simulation-based method for predicting reliability index profiles of deteriorating bridges associated with both time- and performance-controlled maintenance interventions is introduced. The method provides a computational procedure which can handle various types of maintenance interventions in a consistent manner. This method also includes an advanced cost model which takes into account the interaction between costs of maintenance interventions and their effect on system reliability. Examples are presented demonstrating the application of computational procedure to a stock of existing deteriorating bridges under various maintenance scenarios.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 130 • Issue 12 • December 2004
Pages: 1865 - 1874
Copyright
Copyright © 2004 ASCE.
History
Published online: Nov 15, 2004
Published in print: Dec 2004
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