After Reinforcement Double-curvature Arch Bridge Durability Evaluation Research

This paper focuses on the evaluation of reinforced double-curvature arch bridge is studied. The durability evaluation of bridge, using specific information, the application for the analysis on the in servie bridge durability status, and makes the corresponding level assessment project decision-making process. But for the bridge durability evaluation standard, it is not mature material, it is in a stage of study. The present study bridge durability are built on the basic appearance, on the basis of the inspection for strengthening the bridge, lack of special durability evaluation standard.After reinforcement effect according to the evaluation factors hyperbolic arch bridge, need to adopt appropriate methods to deal with, and hierarchical analysis method is more practical method, can be specified approach and methodical factors. But the analytic hierarchy process is unable to reflect the uncertainty and fuzziness judgment based on ahp, a fuzzy analysis, the analytic hierarchy process and fuzzy mathematics theory is proposed, which combines the method of ahp double-curvature arch bridge durability based on fuzzy comprehensive evaluation method. This method is based on ahp, and structural factors hierarchical fuzzy consistent judgment matrix, calculate the weight factors index layer. After the operation after multi-grade fuzzy evaluation results, and finally.This paper expounds the durability of concrete bridge, influence factors and related inspection method, then the double-curvature arch bridge, introducing the load test as the result of evaluation, using the durability of the parameters of the size of the coefficient reflects structure; the actual load bearing parts subject and safety durability reserves, by introducing new parameters, the reinforcement effect by secondary fuzzy comprehensive evaluation method for the durability of CFRP reinforced assessment for the durability evaluation of bridge to provide a more direct and reliable method. In order to verify the reliability of the proposed method, the selection of typical examples, the assessment results and assess actual situation, proposed that the evaluation method is feasible, and the durability of similar Bridges in future estimation has certain directive significance.