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侧柱和角柱与底架横梁连接节点及与其相邻元件的损坏、立柱残余变形、冲击座上端梁中央断面裂纹以及端门上门闩不能衔接而使端门逐渐损坏,这都证明四轴敞车车体的个别部件和元件的强度和刚度不足,这已由全苏铁路运输科学研究院所进行的试验结果所证实。1971年交通部——重工业部的标准推荐了敞车车体元件的计算强度,但在变形方面标准中没有任何限制。在运用中经常发现底架横梁上翼板与立板脱开,立板从缺口角处开始裂纹和断裂,立柱在接点处沿焊缝脱开。为了消除这些损坏,建议将上弦带的U形断面换成丁字钢。
Side columns and corner posts and chassis beams connected to the node and the adjacent components of the damage, column residual deformation, the impact of the seat beam and the central section of the central cross-section of the door latch can not make the end door gradual damage, which all prove that four-axis gondola car The lack of strength and stiffness of the individual components and components of the body has been demonstrated by the results of tests carried out by the All-Su-Tuk Research Institute of Railway Transportation. 1971 Ministry of Transportation - Ministry of Heavy Industry recommended the calculation of the strength of the body part of a gondola, but there are no restrictions in terms of deformation. In use, it is often found that the upper flange and the upper flange of the underframe crossbeam are disengaged. The vertical flanges begin to crack and break from the notched corners, and the posts are disengaged along the weld at the joints. In order to eliminate these damages, it is advisable to change the U-shaped section of the tying band to T-bar.