Abstract
In this study, a fundamental study on game theory (Nash bargaining solution) approach to the bridge maintenance planning is presented. When a bridge is repaired at appropriate time, the gain of the bridge is maximized. Annual budget forces the repair schedule to be slid, so balanced modification of the repair planning is searched. Each bridge is considered as a player, and the bridge group gain is maximized at the same time as pursuing the maximization of an individual gain by adapting Nash bargaining solution with proper utility function. Also, it is shown that the maximized product of the sum of bridges' gain and the Nash product of bridges' gain is effective target for repair priority of a certain bridge.
