For the deformation, the defect exceeds the allowable deviation of the component, should be installed before the ground correction, repair, qualified before installation.
对于变形、缺陷超过允许偏差的构件，应安装前，在地面进行矫正、修理，合格后方可安装。
In installation, the positioning axis of the foundation and the bearing steel cylinder elevation exceed the allowable value of the standard deviation.
在安装方面上，基础的定位轴线和支承钢柱面标高超过规范允许偏差值。
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.
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。
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