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为了确保大跨度斜拉桥的安全运营,保证桥梁的使用寿命,采用不确定型层次分析法对桥梁的状态进行评估.介绍了不确定型层次分析法的相关理论和应用对象,在众多计算区间数判断矩阵的方法中,经过对比分析选用了最优传递矩阵理论,因为其计算结果精确可靠.以哈尔滨松花江斜拉桥为背景桥,利用不确定型层次分析法建立了该桥状态评估的指标体系和评估模型,确定了评估指标的权重并通过计算得到该桥最终的状态评估值,证明了该方法的可行性与实用性.这种评估方法的应用将会为大跨度斜拉桥的养护管理提供更加科学的依据.
In order to ensure the safe operation of the long-span cable-stayed bridge and ensure the service life of the bridge, the state of the bridge is evaluated by using the uncertainty-based analytic hierarchy process.The theory and object of the Uncertain Analytic Hierarchy Process In the method of number judgment matrix, the optimal transfer matrix theory is selected through comparative analysis because the calculation results are accurate and reliable.Based on the Songhua River cable-stayed bridge in Harbin as the background bridge, the state estimation of the bridge is established by using the uncertainty hierarchy analysis method Index system and evaluation model to determine the weight of the evaluation index and obtain the final state evaluation value of the bridge by calculation to prove the feasibility and practicability of the method.The application of this evaluation method will be a long-span cable-stayed bridge Conservation management to provide a more scientific basis.