既有线大跨度雨棚悬挑结构临时支撑拆除施工技术

Construction Technology of Temporary Support Removal of Cantilevered Structure of Large Span Canopy on Existing Line

论述了京沪铁路常州站既有线大跨度雨棚悬挑结构临时支撑拆除施工技术。从方案选择、挠度变形验算、拆除工艺、变形监测、安全措施等方面,对既有线临时支撑拆除方法做了总结,既保障了既有线施工行车安全和旅客正常乘降,又减轻了改造车站因施工而增加人员组织管理的压力,可为类似项目提供借鉴。

This paper discusses the demolition construction technology for temporary support of large span canopy cantilever structure on existing line in Changzhou Station of Beijing-Shanghai Railway.From the aspects of scheme selection,deflection deformation checking calculation,demolition process,deformation monitoring,safety measures and so on,the demolition method of the temporary support of the existing cable is summarized.It not only ensures the safety of the construction of the existing line,but also reduces the pressure of personnel organization and management caused by the construction of the reconstruction station,which canprovide reference for similar projects.