钢箱拱线形控制与误差调整方法  

Alignment control and error adjustment method of steel box arch

作　　者：刘宇涛 王达 徐文波 LIU Yutao;WANG DA;XU Wenbo(School of civil engineering,Changsha University of Science&technology,Changsha 410114,China;School of civil engineering,Central South University of forestry and technology,Changsha 410004,China;The Fourth Engineering Co.,Ltd of CCCC First Highway Engineering Group,Nanning 530033,China;The Third Construction Co.,Ltd.of China Construction the Fifth Engineering Bureau,Changsha 410004,China)

机构地区：[1]长沙理工大学土木工程学院,湖南长沙410114 [2]中南林业科技大学土木工程学院,湖南长沙410004 [3]中交一公局集团第四工程有限公司,广西南宁530033 [4]中建五局第三建设有限公司,湖南长沙410004

出　　处：《交通科学与工程》2023年第6期93-100,共8页Journal of Transport Science and Engineering

基　　金：国家自然科学基金资助项目(52278235)。

摘　　要：针对中承式系杆拱施工中钢箱拱线形控制与误差调整问题,以广东省茂名市清福港大桥这座中承式系杆拱桥为研究背景,对其支架设计的位置与荷载控制进行研究,并根据现场测算结果进行优化和调整。对安装过程中里程和标高的误差,提出一种用焊缝分阶段调节线形的方法。研究结果表明:该误差调整方法能够保证桥梁线形平顺,能较好地控制成拱的内力状态。该研究可为采用类似施工方法的拱桥线形控制提供参考。In order to sovle the problem of line control and error adjustment of steel box arch in the construction of medium-bearing tied arch,Qingfu Port Bridge in Maoming City,Guangdong Province,which is a medium-bearing tied arch bridge,is taken as the research background,and the position control and load control of its bracket design are studied,and optimised and adjusted according to the results of on-site calculations.For the error of mileage and elevation during the installation process,a method of adjusting the line shape in stages with welds is proposed.The research results show that the error adjustment method can ensure the smoothness of the bridge line and better control the state of the internal force of the formed arch.This study can provide a reference for the linear control of arch bridges with similar construction methods.

关 键 词：钢箱拱 先拱后梁 支架设计 线形调节 施工控制 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]