DURABILITY ASSESSMENT OF REINFORCED CONCRETE BRIDGES BASED ON ANALYTIC HIERARCHY PROCESS AND FUZZY SYNTHETIC EVALUATION

At present, the deterioration and damage of reinforced concrete bridges caused by durability insufficient were becoming increasingly serious. To ensure the security and lasting operation of the bridges, the scientific durability assessment is necessary. Based on the results of assessment, reasonable maintenance and reinforcement proposals will be put forward. In this paper, analytic hierarchy process and fuzzy synthesis evaluation are used to the durability assessment of existing reinforced concrete bridges, and the new assessment model and index system for reinforced concrete continuous girder bridges are put forwarded. Meanwhile, the assessment model and index system are validated by actual project. The research provides theoretical basis for durability assessment for existing reinforced concrete bridges.