大跨度钢管拱分段双肋整体吊装技术

The Integral Lifting Technology with Segmentation and Dual-rids of Large Span Steel-pipe Bow

结合九畹溪大桥施工实例 ,介绍了采用缆索吊吊装双肋悬拼钢管拱技术。该技术最大特点是将空中焊接横连作业转化为地面作业 ,能确保施工安全和拱肋拼装质量。

With the example of Jiuwanxi Bridge, the lifting technology of dual\|rids hanging\|assembling steel\|pipe bow, using cable ropes, is introduced in this article. The main features of this technology is that the hanging welding jobs was changed to be done on ground to ensure the construction security and assembling quality.