试验结果表明，无中梁罐车存在枕梁腹板与牵引梁立焊缝裂纹及枕梁腹板与枕梁上盖板之间的裂纹。
The result shows some cracks appearing on vertical weld connecting web plate of body bolster and draft sill as well as the part between web plate of body bolster and top cover plate.
结构 主梁：钢板冷弯U型槽加中幅立筋板组合。
Structural main beam: steel plate cold bending U type groove plus middle vertical rib plate combination.
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