Re-Assessment of Concrete Bridges

In this paper two aspects of re-assessment of the reliability of concrete bridges are discussed namely modelling of the corrosion of reinforcement and updating of uncertain variables. The main reason for deterioration of concrete bridges is corrosion of the reinforcement. Therefore, modelling of the corrosion process is an important aspect of the re-assessment. Re-assessment of bridges is often based on inspection results, so it is essential to be able to update stochastic variables when inspection data have been obtained.In this paper two aspects of re-assessment of the reliability of concrete bridges are discussed namely modelling of the corrosion of reinforcement and updating of uncertain variables. The main reason for deterioration of concrete bridges is corrosion of the reinforcement. Therefore, modelling of the corrosion process is an important aspect of the re-assessment. Re-assessment of bridges is often based on inspection results, so it is essential to be able to update stochastic variables when inspection data have been obtained