摘要
伴随国内高速铁路和普通铁路的新建和改造升级,上跨和下穿既有线铁路变得更加常见,转体桥施工对既有线影响小,安全可控,但临近既有线施工作业时间短,施工风险大,对转体桥的各项控制参数要求高,以上跨迁曹铁路墩顶转体为背景,详细介绍了墩顶转体施工控制的设计和实施,为上跨既有线桥梁施工提供借鉴。
With the construction and reconstruction of domestic high-speed railways and ordinary railways,overcrossing and undercrossing existing railways have become more common.Swing bridge construction has little impact on existing railways and is safe and controllable.However,the construction time of near the existing line is short,the construction risk is high,and the control parameters of the swing bridge are high.In this paper,the rotation of pier top overcrossing the Qiancao railway is taken as the background,and the main control techniques for the construction of the turning of the existing railways pier top are discussed to provide reference for the construction of the bridge overcrossing the existing railways.
作者
巩立青
Gong Liqing(China Railway No.3 Engineering Group Co.,Ltd.Tianjin Construction Engineering Co.,Ltd.,Tianjin 300350,China)
出处
《山西建筑》
2020年第9期113-116,共4页
Shanxi Architecture
关键词
墩顶转体
跨越
施工控制
体系转换
rotation at pier top
overcrossing
construction control
structural system transformation
作者简介
巩立青(1978-),男,高级工程师。
