Study on Reinforcement Corrosion of the Bridges

Abstract

A large number of design, construction and maintenance measures may be selected by bridge engineers to help ensure safe and durable service. In the present paper an improved model is developed for time-dependent reliability estimation of RC bridge decks subject to general and localized corrosion. The preliminary model developed is improved by considering weakening of the bond interface between concrete and reinforcement as a result of reinforcement corrosion and serviceability limit states in the time-dependent reliability analysis. A probabilistic model is developed that relates loss of reinforcement area to a non-linear bond stressstrain relationship.