Risk Evaluation Of Bridge Constuction Basd On Analytic Hierarchy Process And Grey Fuzzy Theroy

Since twenty-first century, along with our country national economy high speed increase, traffic and transportation industry development is very rapid, bridge construction has made a huge improvement. In the bridge construction to the large span, high degree of difficulty of development at the same time the risks they may be suffered have been paid more attention to by the public. Facing more and more bridge accidents and the Security and economic issues, the risk of bridge construction needs to be evaluated accurately, in order to make effective coping strategies, to improve the safety of bridge construction.This article from the research of the risk of bridge construction assessment to proceed, focus on the methods of analyzing the risk of bridge construction, combining the analytic hierarchy process, grey theory, and fuzzy mathematics theory, to play the advantages of the various disciplines theory by comparison. Forming a fuzzy evaluation method based on incomplete information. The method used in risk evaluation can effectively reflect the the various risk factors of bridge construction, so we can make a correct assessment of the status of the bridge. Building a model of evaluating the risk of bridge construction based on the method, in order to improve the adverse effects on bridge construction, make an appropriate response measures to improve bridge safety performance and operational levels, improve the Risk Assessment System. This paper takes the evaluation of the risk of the Matsu urban area virtuous road bridge project as an example to prove that the evaluation method is practical and effective.Through the evaluation and analysis of model, this method reflects the influences level of each factor effectively, makes the fuzzy factors quantification by math, and gives the theoretical basic for making the schemes to deal with risk. This method has practical means for bridge risk evaluation in the future.