Abstract
This chapter deals with the concept of service life and demonstrates the application of time-dependent reliability methods to predicting the service life of infrastructure. Firstly, performance-based service life for infrastructure is formulated and then applied to various types of structures. Since the primary cause for not achieving designed or expected service life is the deterioration of structural capacity induced by material degradation and external damages, time-dependent reliability methods for prediction of remaining safe life of deteriorated infrastructure are presented. A merit of the methodology presented in the chapter is that the service life prediction is based on structural performance that is directly related to design criteria used by practitioners, facilitating its wider applications. The presented methodology can serve as a tool for structural engineers and asset managers to make decisions with regard to repairs, strengthening, and/or rehabilitation of infrastructure.
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