The welded truss was extended at the front and sides to three vertical shock struts with single wheels, the nose unit having levered suspension.

桁架的焊接是在前面，三个单轮垂直冲击支柱双方延长，鼻子单位有杠杆停牌。

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According to fatigue damage accumulation theory, test load of verified fatigue test on rail across beam and welded connections with integral joint of combined steel truss bridge was gotten.

依据疲劳损伤累积理论，确定了公轨两用钢桁桥轨道横梁与整体节点连接头验证性疲劳试验的试验荷载。

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According to feature of bolted and welded steel truss beam, the reasonable model simplified and calculating method is presented.

根据栓焊钢桁梁的结构特点，提出结构模型的简化计算图式的处理方法。

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