Check rail span deviation, elevation difference, inclination, etc., to determine the fault in the end is what caused the.
检查轨道跨度偏差、标高差、倾斜度等，判定故障到底是什么原因造成的。
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。
Eccentric loadings will induce large torsional deformations for the girders of long-span Bridges, deteriorating the safety and comfort of moving vehicles of rail transit.
偏载作用下大跨度桥梁主梁易产生较大的扭转变形，这对轨道交通车辆运行的安全性和舒适性是不利的。
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