简支拱拱肋快速精确定位施工技术研究

Research on the construction technology of fast and precise positioning of simply supported arch rib

分析了济青高铁邹淄特大桥1-144 m简支拱拱肋拼装工程的重难点,从拱肋支架与定位架加工安装、拱肋吊装、临时加固、焊接、合龙等方面,阐述了拱肋拼装的总体方案,达到了快速拼装、精确定位的效果。

This paper analyzed the difficulties of 1-144 m simply supported arch rib assembling engineering of Zouzi super bridge of Jiqing highspeed railway,from the arch rib bracket and positioning frame process installation,arch rib hoisting,temporary reinforcement,welding,closure and other aspects,elaborated the general scheme of arch rib assembling,achieved rapid assembling,positioning effect.