基于综合层次分析法的赣江特大桥安全评估  

Safety Assessment of Ganjiang Bridge of Chang Gan Railway Based on Comprehensive Analytic Hierarchy Process

作　　者：吴俐滢 杨涛远 翁顺[1] 杜荣武 余兴胜[2] 殷鹏程[2] 闫俊峰 WU Liying;YANG Taoyuan;WENG Shun;DU Rongwu;YU Xingsheng;YIN Pengcheng;YAN Junfeng(School of Civil and Hydraulic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;China Railway Siyuan Survey and Design Group Co Ltd,Wuhan 430063,China)

机构地区：[1]华中科技大学土木与水利工程学院,湖北武汉430074 [2]中铁第四勘察设计院集团有限公司,湖北武汉430063

出　　处：《土木工程与管理学报》2022年第2期133-140,共8页Journal of Civil Engineering and Management

基　　金：国家自然科学基金(51778258,51922046);中铁第四勘察设计院集团有限公司科研项目(2020K006);中铁二院工程集团有限责任公司科研项目(KYY2019029(19-21))。

摘　　要：桥梁监测传感器易出现损坏和失真现象,人工检测方法具有一定的主观性,二者均不能及时反映桥梁状态。本文提出综合层次分析的方法,通过人工检测法修正部分监测数据失真造成的评估误差,并弥补人工检测法因过于依赖专家经验而造成评估结果偏于主观的缺陷,提高桥梁安全评估的准确性。以昌赣铁路赣江特大桥为例,对于实时监测数据评估模型,先采用层次分析法确定底层评估指标的权重,再由变权综合法和灰色关联分析法计算上一层指标评分;对于人工检测数据指标评估模型,根据相关规范确定模型底层评估指标并依次计算各层评分。最后由变权综合法计算桥梁的综合评估分数。结果表明,该方法能够准确地反映桥梁健康状态,评估结果更接近桥梁实际状况。The bridge monitoring sensors are prone to damage and distortion,and the manual detection method is subjective,neither of which can reflect the bridge state in time.In this paper,a comprehensive analytic hierarchy process(AHP)method is proposed,which corrects the evaluation error caused by the distortion of some monitoring data by manual detection method,and makes up for the defect that the evaluation result is subjective because the manual detection method relies too much on expert experience,so as to improve the accuracy of bridge safety evaluation.Taking Ganjiang Bridge of Chang Gan Railway as an example,for the evaluation model of real-time monitoring data,firstly,the weight of the bottom evaluation index is determined by AHP,and then the upper index score is calculated by variable weight comprehensive method and grey relational analysis method.For the index evaluation model of manual inspection data,the evaluation index at the bottom of the model is determined according to relevant specifications,and the scores of each layer are calculated in turn.Finally,the comprehensive evaluation score of the bridge is calculated by the variable weight synthesis method.The results show that the method can accurately reflect the health status of the bridge,and the evaluation result is closer to the actual condition of the bridge.

关 键 词：高速铁路桥梁 安全综合评估 层次分析法 变权综合法 

分 类 号：U447[建筑科学—桥梁与隧道工程]