大跨度城市景观桥钢箱梁滚动拖拉技术

Rolling Towing Technology of Steel Box Girder of Long-span Urban Landscape Bridge

摘要:

深圳市前海合作区梦海前湾河桥为大跨度简支拱梁组合全钢结构桥梁，造型独特，结构受力、构造复杂，安装风险大。为此结合工程实际，采用滚动拖拉的施工工艺对钢箱梁进行安装。滚动拖拉技术主要包括滚动拖拉支撑体系设计、安装主要技术、施工步骤及施工控制要点。

Abstract:

Menghai Qianwan River Bridge in Qianhai Cooperation Zone in Shenzhen is a large-span simply supported arch-beam combined all-steel structure bridge. It has a unique shape, structural stress, complex structure and high installation risk. For this reason with the engineering practice, the steel box girder is installed by the construction technology of rolling towing. The rolling towing technology mainly includes the design of the rolling towing support system, main installation technology, construction steps and construction control essentials.