Principles for a guideline for probability-based management ofdeteriorated bridges

摘要

This paper describes how the Danish Road Directorate, Ministry of Transport isrndeveloping a guideline for the procedure for probability-based management of deterioratedrnbridges. This guideline is a supplementary guideline to "Reliability-based classification of thernload carrying capacity of bridges". The main objective of a probability-based maintenancernmanagement plan is to make it possible for a bridge owner to extend the lifetime of a deterioratedrnbridge or bridge component. The core principle in probability-based bridge maintenancernmanagement is to make rational decisions on the maintenance management taking into accountrnthe inherent uncertainty. The application of probability-based maintenance management forrnspecial deteriorated structures has proven very economically beneficial in cases where the deterministicrnoptions of repair or replacement would prove extremely costly. The supplementaryrnguideline is made in order to extend the use of the method and is completed early 2006.