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Faculty of Engineering
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Integration of Reliability, Risk, Resilience, and Sustainability in Optimum Life-Cycle Management of Civil Infrastructure SystemsProfessor Dan M Frangopol 12 December 2013 3-4pm Throughout their service life, civil infrastructure systems are subject to gradual and/or sudden deterioration in performance. This deterioration may render the use of these facilities unsafe at some point in time. Decisions regarding civil infrastructure systems should be supported by an integrated life-cycle reliability, risk, resilience and sustainability multi-objective optimization framework by considering, among other factors, the likelihood of successful performance, the total expected cost accrued over the entire life-cycle, and restoring as quickly as possible the proper functionality of the infrastructure after a disaster. Over the last two decades, there has been successful research towards developing procedures for establishing the various vital elements required in this framework. It is noted, however, that a framework for integrating all these elements is lacking. The primary objective of this lecture is to present an integrated framework for the optimum life-cycle management of civil infrastructure systems. The elements integrated into the framework include assessment and prediction of life-cycle performance, analysis of system and component performance interaction, inspection and maintenance optimization, updating the life-cycle performance by information obtained from structural health monitoring, and optimum decision making based on reliability, risk, resilience and sustainability. Applications of the proposed integrated framework to life-cycle management of individual bridges and bridge networks are presented. |
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