Abstract
Repair hysteretic data of the highway bridges is not effectively used in management system for the reason that repair hysteretic data is not accumulated enough. However, repair hysteretic data is effective information for planning of maintenance strategies. This study analyzed the relationship of repair frequency to the accumulated track traffic volume by using repair hysteretic data. Moreover, repair rate curve was identified by applying analytical results to logistic curve. In addition, long-term maintenance strategies were suggested by using the repair rate curves.