According to fatigue damage accumulation theory, test load of verified fatigue test on rail across beamand 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。
2
The key is that to resolve the interaction between bridge and track, that the mechanics model of this interaction, as well as rail longitudinal resistance to displacement between railandbeam.
轨道结构与桥梁共同作用的力学计算模型是解决轨道纵向位移阻力与梁轨相对位移相互作用计算问题的关键。
3
The concrete beam modification, change and its effects for traveling crane rail in stock yard were introduced.