摘要
为提升拱桥吊杆更换技术,准确计算更换过程中各吊杆受力,以西安广运大桥为例,运用桥面支撑法更换拱桥吊杆,基于Midas Civil软件对该拱桥吊杆更换各阶段受力进行模拟验算。结果表明,该方法能保证桥面不出现过大变形,吊杆承载力安全系数在规范要求范围内,可供其他同类型的拱桥吊杆更换参考。
In order to improve the arch bridge suspender replacement technology and accurately calculate the force of each suspender during the replacement process,taking the Xi′an Guangyun Bridge as an example,the bridge deck support method was used to replace the arch bridge suspender,and the arch bridge suspender was replaced at all stages based on the Midas Civil software.The force is simulated and checked.The results show that this method can ensure that there is no excessive deformation of the bridge deck,and the safety factor of the load-bearing capacity of the suspender meet with the requirements of the specification.It can be used as a reference to replace suspenders of the same type of the arch bridge.
作者
贾迪斐
石恩岭
JIA Difei;SHI Enling(Municipal Facilities Management Office in Jiangbei District of Chongqing,Chongqing 400023;Chongqing Jiaotong University,Chongqing 400074)
出处
《公路交通技术》
2021年第5期74-80,共7页
Technology of Highway and Transport
关键词
拱桥
吊杆更换
桥面支撑法
arch
suspender replacement
bridge deck bracing method
