摘要
大跨径桥梁跨越水上交通繁忙的航道时,采用先梁后拱、先拱后梁的施工方法对航道的影响较大,采用整体浮运提升安装的施工方法,可将对航道的影响降到最低。文章以宜昌西坝跨三江慢行桥为例,设计了整体浮运提升施工在大跨径系杆拱桥中的应用方案,通过优化设计吊杆和劲性骨架,满足了整体浮运提升的受力要求。
When the large-span bridge crosses the waterway with heavy water traffic,the construction methods of first beam and then arch or first arch and then beam have great influence on the waterway.The construction method of integral floating lifting and installation can minimize the influence on the waterway.Taking Yichang Xiba Slow Moving Bridge across Sanjiang River as an example,this paper designs the application scheme of integral floating lifting construction in large-span tied arch bridge.By optimizing the design of suspender and rigid skeleton,the stress requirements for integral floating lifting are met.
作者
曾储惠
ZENG Chuhui(Guangzhou Municipal Engineering Design&Research Institute Co.,Ltd.,Guangzhou 510060,Guangdong,China)
出处
《工程技术研究》
2023年第22期193-195,共3页
Engineering and Technological Research
关键词
系杆拱桥
整体浮运
提升安装
tied arch bridge
integral floating
lifting installation
作者简介
曾储惠,男,硕士,高级工程师,研究方向为桥梁隧道设计。
