混凝土拱桥既有墩台再利用方案判定模型建立研究  

Study on Establishment of Decision Model for Reuse Scheme of Existing Pier and Abutment of Concrete Arch Bridges

作　　者：张胜林 叶航 刘彬 耿川雁 周水兴[2] ZHANG Shenglin;YE Hang;LIU Bin;GENG Chuanyan;ZHOU Shuixing(Guizhou Highway Engineering Group Co.,Ltd.,Guiyang 550003;School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074;Guizhou Bridge Construction Research Institute Co.,Ltd.,Guiyang 550015)

机构地区：[1]贵州省公路工程集团有限公司,贵阳550003 [2]重庆交通大学土木工程学院,重庆400074 [3]贵州桥梁建设研究院有限公司,贵阳550015

出　　处：《公路交通技术》2023年第1期105-111,124,共8页Technology of Highway and Transport

基　　金：贵州省交通运输厅科技项目(2020-123-018);重庆市教委科学技术研究重点项目(KJZD—K201900705)。

摘　　要：为解决混凝土拱桥既有墩台的再利用问题,采用基于粗糙集理论构建判定模型的方法对既有墩台再利用方案决策进行研究。结果表明:1)粗糙集理论能够简化指标体系,筛选出切合实际工程的判定指标;2)利用粗糙集理论中的属性依赖度计算,可对指标进行赋权,无需再借助其它理论方法就能计算指标权重;3)运用方案判定模型,能得到科学合理的决策结果。将基于粗糙集理论建立的混凝土拱桥既有墩台再利用判定模型应用于贵州花鱼洞大桥既有桥台再利用的方案决策中,成功验证了方案判定模型的可行性。In order to solve the reuse of existing piers and abutments of concrete arch bridge,the decision-making of reuse scheme of existing piers and abutments is studied by using the method of constructing decision model based on rough set theory.The results show that:1)Rough set theory can simplify the index system and screen out the judgment indexes which are suitable for practical engineering;2)Using the calculation of attribute dependence degree in rough set theory,the index can be weighted without the help of other theoretical methods;3)By using the scheme decision model,scientific and reasonable decision-making results can be obtained.The decision model for the reuse of existing piers and abutments of concrete arch bridge based on rough set theory is applied to the decision of the reuse scheme of existing piers and abutments of Huayudong Bridge in Guizhou province,and the feasibility of this model is successfully verified.

关 键 词：混凝土拱桥 判定模型 既有墩台再利用 指标体系 粗糙集理论 

分 类 号：U443.2[建筑科学—桥梁与隧道工程]