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我厂20/5吨×25.5米桥吊的轨道,是1958年按原建工部“结122吊车梁联结图集”施工建造的。1965年热轧薄板投产后,由于生产的连续性,吊运的频繁性,特别是高温烟尘的侵蚀,行车的振动,造成1/4左右的轨道基础被损坏,主要是在繁重作业区,由于预制梁上二次抹面出现不同程度的碎裂,而硬枕木亦产生腐朽松散,失去部分承戴力,上面的槽钢与钢轨随之下沉,从而使东西两轨的水平误差超过限值(个别跨达25～30毫米)。使得一边钢轨除受压外,还受极大的侧向力,造成局部呈S形旁弯,达45毫米,因而又引起行车阻力增大,车轮磨损加
The track of the 20/5 ton×25.5-meter bridge crane of our factory was constructed in 1958 according to the “Atlas of the Joint of 122 Crane Beams and Beams” of the former Ministry of Construction and Engineering. After the hot-rolled sheet was put into operation in 1965, due to the continuity of production, the frequent lifting, especially the erosion of high-temperature fumes, the vibration of driving caused about 1/4 of the track foundation to be damaged, mainly in the heavy work area. The pre-prepared girders have different degree of fragmentation on the secondary wiping surface, and the hard cross-ties also produce decay and looseness, losing some of the bearing capacity, and the upper channel steel and rails sink with the rails, causing the horizontal error of the east-west two rails to exceed the limit ( Individual span up to 25-30 mm). In addition to the pressure on one side of the rail, it is also subject to a great deal of lateral force, resulting in a partial S-shaped side bend of 45 mm, which in turn causes increased driving resistance and wheel wear.