钢桁架桥技术状况评定体系中的部件权重分析  

Component Weight Analysis of Technical ConditionEvaluation on Steel Truss Bridge

作　　者：童浩[1] 杨羿 李程焕 刘朵 张建东[2] TONG Hao;YANG Yi;LI Chenghuan;LIU Duo;ZHANG Jiandong(Jiangsu Expressway Co.,Ltd.,Nanjing 210049;JSTI Group Co.,Ltd.,Nanjing 211112;Hohai University,Nanjing 210098)

机构地区：[1]江苏宁沪高速公路股份有限公司,南京210049 [2]苏交科集团股份有限公司,南京211112 [3]河海大学,南京210098

出　　处：《公路交通技术》2021年第2期78-83,共6页Technology of Highway and Transport

摘　　要：针对目前钢桁架桥部件权重划分不明的问题,以某典型钢桁架桥为依托,提出了基于广义贴近度原理的部件权重划分方法。采用刚度折减模拟部件损伤工况,基于桥梁自振频率和屈曲特征值的变化,计算广义贴近度评判桥梁整体结构性能,并利用层次分析法确定了钢桁架桥部件权重。In order to solve the problem of unclear component weight division of steel truss bridge,a component weight division method of the principle of generalized closeness degree is proposed based on a typical steel truss bridge.On the basis of the change of natural frequency and buckling eigenvalue of the bridge,damage condition is simulated by stiffness deduction,the generalized closeness degree is calculated to evaluate the overall structural performance of the bridge,and the weight of steel truss bridge components is determined by using analytic hierarchy process.

关 键 词：技术状况评定 钢桁架桥 部件权重 广义贴近度 层次分析法 

分 类 号：U448.211[建筑科学—桥梁与隧道工程]