A study on evaluation system of bridge technical condition based on fuzzy synthetic judgment

Based on the fundamental principle of analytic hierarchy process, taking the simply supported reinforced concrete beam bridge as an example, the methods to select assess indexes and to establish evaluation model of bridge technical condition were expounded. The ways to determine the weights of indexes with credit degree method of group decision making in analytic hierarchy process, and to evaluate bridge technical condition with fuzzy synthetic judgment, were illustrated. In addition, the main functions and basic formations of the evaluation system for bridge technical condition, and the basic ideas to develop the related software were introduced. This system can provide decision basis for the maintenance of bridges and has extensive practicality. It can not only satisfy the technical condition evaluation for general bridges, but also add new evaluation models for other special bridges if necessary.