桥梁设计中安全系数的评定

The Determination of Safety Degree in Bridge Design

本文应用模糊数学综合评判方法,试行解决桥梁设计中合理确定安全系数的问题,首先利用隶属度的概念建立起一套评价集和一系列影响桥梁设计中安全系数的因素集;其次考虑模糊统计确定权重的方法,得出对应于这些因素的权重,由此也构成了一个模糊综合评判系统.通过该系统,可得到合理的安全系数.

The determination of the safety degree in bridge design suitable by method of the fuzzy math.is discussed,A set of evaluation (appraisal) series and the influence of various factors to safety degree are made through the concept of fuzziness.On the basis of fuzzy statistics the weights of these factors can be obtained.All these are also made up a fuzzy comprehensive evaluation (appraisal) system to provide the suitable safety degree of bridge design.