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.
The invention discloses a hot-rolled steel air cooling and stacking method capable of reducing bending of a rail to ensure straightness of the straightened rail to meet standard requirement.
本发明公开了一种可减小钢轨弯曲度的热轧钢轨的空冷堆垛方法，保证矫直后钢轨的平直度达到标准的要求。
3
Orbital floor and must closely focus on the ground, in order to prevent the ground rail track bending deformation after loading.