Bridge Management, Inspection and Sustainability

Full Session with Abstracts

335554-4 - Maintenance Optimization for Deteriorating Bridges under Uncertainty

Saturday, April 21
8:00 AM - 9:30 AM
Location: 203A

Deteriorating bridges require maintenance and repair activities to extend their service life and maintain a satisfactory performance level. Additionally, bridges located in highly corrosive environments, due to severe chloride exposure or marine environmental effects, may require more frequent maintenance actions during their life-cycle. These maintenance actions can lead to indirect costs associated with traffic delays and environmental effects, in addition to the direct cost of maintenance actions, which can significantly increase the life-cycle cost of the bridge under consideration. Accordingly, these indirect effects should be considered for the proper life-cycle management of deteriorating bridges. This paper presents an approach for optimizing maintenance activities of deteriorating bridges while considering the direct and indirect costs arising from maintenance actions. Indirect environmental, social, and economic impacts of maintenance actions are computed to quantify the sustainability metrics associated with deteriorating bridges during their life-cycle. Uncertainties associated with the various stages of the life-cycle management are included and the optimum maintenance solutions are established by solving an optimization problem which minimizes the total life-cycle cost of the bridge under investigation. The approach is illustrated on an existing bridge.

Mohamed Soliman

Assistant Professor
Oklahoma State Unversity

Dr. Soliman is an Assistant Professor at the School of Civil and Environmental Engineering at Oklahoma State University. His research mainly focuses on developing bridge management tools which enable better understanding of the structural deterioration processes, quantifying the life-cycle reliability and sustainability of structural systems, and the optimal planning of inspection, maintenance, and rehabilitation actions throughout the service life of a system. His research assists in extending the service life of deteriorating bridges while maintaining an optimum balance between reliability, cost-effectiveness, and risk of the managed systems.


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omid khandel

Graduate Research Assistant
Oklahoma State University

Omid is a Ph.D. student in Civil Engineering program at Oklahoma State University. He is working under the supervision of Dr. Mohamed Soliman. He is currently working on the risk, reliability, and lifecycle management of the structures. He is particularly interested in studying the effect of climate change on risk of bridge failure.


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335554-4 - Maintenance Optimization for Deteriorating Bridges under Uncertainty

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