运用模糊层次分析法进行桥梁可靠性评估

根据模糊层次分析法的原理,以某铁路钢筋混凝土梁桥为例,进行了整桥的可靠性综合评估。根据桥梁结构特点,建立评估指标体系,构建了模糊一致判断矩阵,确定隶属函数、权重值,最后得出的评判结果与实测结果吻合。评判过程表明,该方法具有较高的科学性和客观性,方法计算简单、使用方便,具有推广价值。

The Application of the Fuzzy Analytic Hierarchy Process to Bridge Reliability Evaluation

In the light of the principle of the fuzzy analytic hierarchy process, and with a certain railway RC beam bridge as an example, a comprehensive assessment of the reliability of the entire bridge is conducted in the paper. According to the structural characteristics of the bridge, a system of evaluation targets is established and a evaluation matrix of fuzzy-agreement is estab- lished, with the subordinated functions and weight values determined. It is found that the evaluated results are in full agree- ment with the measured ones. The result shows that the method, being highly scientific and objective, and simple to calculate and convenient to use, is worth popularizing.