Abstract
The authors were proposed the evaluation method of residual performance of reinforced concrete (RC) decks of open-type piers damaged by rebar corrosion based on results of visual inspection of surface appearance of the structures. In the method, the deterioration degrees judged by the visual inspection were analyzed by the extreme value theory. In this paper, the prioritization method for repair of RC decks of open-type piers was examined, in which the residual performance obtained from the proposed method was utilized as an evaluation index of structural performance of RC decks. Total of 10 RC decks which were in service for more than 30 years was examined, and the expected minimum value of load bearing capacity of RC decks was probabilistically estimated, facility by facility, and block by block. Based on the estimated residual performance of RC decks, the priority of repair work to the deck was investigated for strategic maintenance.
