承包商也应提供并装载全部桥架系统、电缆吊杆、楼梯、以及电缆安装的其他元件。
The CONTRACTOR shall also to supply and to mount all the systems of trays, cable suspenders, stairs and other elements for the installation of cables.
安装前要对起重机安装跨度，金属结构主梁的拱度、水平旁弯，小车轨道高低差、轨距偏差，桥架对角线等进行测量。
To install the crane span before installation, camber, level of metal structure of main girder bending, trolley rail height difference, gauge deviation, diagonal bridge survey.
对这种桥架的安装，应首先在安装工地选好地段，把几段桥架用预装螺栓连接成一个整体。
On the bridge installation, should first of all in the site location, the bridge sections are connected into a whole with preloaded bolt.
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