多目标桥梁劣化因果分析方法

Causal Analysis Method for Multi-objective Bridge Deterioration

以云南省桥梁为例,建立了多目标桥梁劣化因果分析方法。该算法在关联规则挖掘算法的基础上引入遗传算法和灰色关联分析方法解决了关联规则挖掘算法中支持度和置信度取值大小影响规则质量问题。评估了云南省亚热带地区桥梁的劣化因果关系。实验结果表明建成年限、下穿通道类型、桥梁的构造形式及构造材料、降雨量等因素对桥梁劣化产生较大影响。

In this paper,it takes the bridges in Yunnan Province as an example,proposes a multi-objective causal analysis method for bridge deterioration.This algorithm introduces genetic algorithm and grey association analysis method on the basis of association rule mining algorithm.It solves the problem that the value of support and confidence affects the quality of rules.This paper evaluates the causality of bridge deterioration in subtropical areas of Yunnan Province.Experimental results show that the age,underpass type,structural form and material of bridge,rainfall and other factors have a greater impact on bridge deterioration.