对于那些已经吊装的桁架由于缺少靠近的通道，因此需要应用吊笼以提供螺栓连接和检验的安全通道。
Since there is no access to the installed truss, suspended cage is adopted to provide safe access for bolting and testing.
主拱为桁架式双拱肋，钢管拱纵向分13段制造，采用无支架缆索吊机安装、钢绞线斜拉扣挂施工。
The steel pipe arch was manufactured in 13 segments vertically, erected by cable crane without support and clasped by diagonal tension steel strand.
综合介绍了钢桁架拱桥适宜的几种施工方法，并对拱上吊机和缆索吊机的特点进行了比较。
Paper introduces several suitable construction methods of steel trussed arch Bridges and compares the different features between crane on the arch and cable crane.
综合介绍了钢桁架拱桥适宜的几种施工方法，并对拱上吊机和缆索吊机的特点进行了比较。
Paper introduces several suitable construction methods of steel trussed arch Bridges and compares the different features between crane on the arch and cable crane.
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