轨道交通特大桥铺轨线形设计及其工程实践
段桂平刘加华
Design and Engineering Practice of Track Laying Line of Rail Transit Extra long span Bridge
DUAN GuipingLIU Jiahua
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作者信息:上海申通地铁集团有限公司技术中心， 201103， 上海
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Affiliation:Technology Center of Shanghai Shen-tong Metro Group Co., Ltd., 201103, Shanghai, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2021.05.009
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中图分类号/CLCN:U212.3； U215.5
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栏目/Col:研究报告
摘要:
针对先期施工预留轨道交通特大跨度公铁两用钢桁梁斜拉桥在荷载作用下变形较大，且与轨道交通设计线路纵断面线形不匹配的现状，根据梁面实测标高和桥梁设计变形，在既有线路设计纵断面基础上重新设计轨道施工时的纵断面即轨面控制标高。在满足限界、最小轨道设计高度等基本要求的同时，使新纵断面下的轨面线形及标高能够适应施工过程中、施工完成后和列车活载作用下的桥梁变形。目前工程已通车运营，现场轨道状态良好。
Abstracts:
In view of the fact that the pre-construction reserved rail transit extra long span steel truss cable stayed bridge has a large deformation under the load, and the deformation does not suit to the rail transit designed line longitudinal section profile, according to the actual measured elevation of the bridge surface and the designed deformation of the bridge, the track laying line is redesigned on the basis of the designed longitudinal section profile of the existing line. While satisfying the basic requirements of limit and minimum track design height, the track profile and elevation under the new longitudinal section can adapt to the bridge deformation during construction, after completion of construction and under the action of train live load. Currently, the project has started operation and the track geometry is in good status.
引文 / Ref:
段桂平，刘加华.轨道交通特大桥铺轨线形设计及其工程实践[J].城市轨道交通研究，2021，24（5）：42.
DUAN Guiping，LIU Jiahua.Design and Engineering Practice of Track Laying Line of Rail Transit Extra long span Bridge[J].Urban mass transit，2021，24（5）：42.
DUAN Guiping，LIU Jiahua.Design and Engineering Practice of Track Laying Line of Rail Transit Extra long span Bridge[J].Urban mass transit，2021，24（5）：42.
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