Due to the increasing severity of engineering damage caused by inadequate durability,it is necessary to conduct durability assessment in the design phase.In order to improve the economy and sustainability of concrete,a durability analysis based on AHP&VE(Analytic Hierarchy Process and Value Engineering)is carried out.Firstly,the influential factors and their weight values of concrete durability are systematically analyzed using the analytic hierarchy process.Then,a concrete durability analysis model based on AHP&VE is established,and a consistency test is conducted to obtain a collection of weight vectors for the influential factors of concrete durability,eliminating the subjectivity of value engineering judgment.Secondly,for durability schemes with different lifespans,a life cycle cost analysis model is developed based on different structural reliability levels.Finally,the functional coefficient and value coefficient are calculated based on the collection of weight vectors for durability influential factors,and the optimal scheme is selected.A case study is conducted to validate the model.The results show that the model passes the consistency test and is feasible.
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