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针对目前城市轨道桥梁支座损坏严重、需要更换的问题,从桥梁顶起状态下的钢轨温度力、伸缩附加力、桥梁支座顶起附加力、扣件受力等方面,对桥上无缝线路做了具体计算;分析不同工况下更换支座对桥上无缝线路轨道结构及部件的影响,并根据计算结果提出施工建议。
Aiming at the problem that the bearing of the urban track bridge is seriously damaged and needs to be replaced, the rail temperature force, the telescopic additional force, the additional force of the bridge bearing and the force of the fastener, The specific calculation of the line is made. The influence of replacing the support on the track structure and components of the seamless track on the bridge under different working conditions is analyzed, and the construction suggestions are put forward according to the calculation results.