系杆拱桥拱安装线形控制

The Arch Line Shape Control of Tied Arch Bridge

在系杆拱桥施工中,拱的线形控制是其关键技术之一。根据控制测量原理及技术要求,运用三维坐标法及合理修正方式可以保证拱的安装线形符合设计要求。工程实践表明,这种控制方法合理可行,实施方便,数据精度满足要求,达到了监测监控线形的目的。

In the construction of tied arch bridge, one of the key technologies lies in the control of the line shape joined. According to the control survey principle and specification, applying the three-dimensional coordinate method and revising the way rationally can guarantee the accordance of the installation of each joined section with the designed line shape. The project practice indicates this kind of control method is feasible and convenient to implement, and the precision of the data meets the demands. Therefore it has achieved the goal of monitoring and controlling line shape.