Inspection, Monitoring, and Maintenance of Infrastructure Systems in a Lifecycle Context: Emphasis on Bridges

摘要

This paper provides a brief overview of the inspection, monitoring, and maintenance scheduling forcivil infrastructure systems within the context of life-cycle management under uncertainty. Variousmethods for determining the optimum life-cycle inspection, monitoring and repair times and types,as well as the impact of such activities on the total life-cycle cost, are discussed in detail. Sources ofuncertainty and the objectives of the life-cycle assessment and management are also presented.Additionally, the integration of these activities with other modules of the general life-cyclemanagement framework responsible for the performance prediction and updating is also discussed.The presented approaches are capable of handling, individually or simultaneously, variousdeterioration mechanisms such as earthquake effects, fatigue, and corrosion. The role ofprobabilistic performance indicators including reliability and redundancy is also highlighted. Thekey achievements in developing the optimization schemes specifically formulated for bridges arediscussed.