LCC-based bridge maintenance strategy in Yamaguchi prefecture

In this paper, a strategy decision support system for bridge management is described based on both of the remaining life cycle cost (RLCC) and rebuild cost stabilization, as a joint research project between Yamaguchi University and Yamaguchi Prefecture. The proposed system that considered not only future maintenance but also rebuild action is applied to existing bridge data on about three and half thousand bridges that stored in J-BMS data base (J-BMS DB) for practical use. Then, it is found that the system helps efficiency bridge engineers related to bridge management understand easily what are the major processes in the deteriorating bridges in the future, how to improve their performance, and what kind of repair/strengthening works is most convenient for the deteriorating bridges.