浅谈钢管拱桥拱肋整体提升方案的选择

Talking about the Selection of Integral Lifting Scheme for Steel Tube Arch Rib

探讨位于城市交通繁忙、周边环境复杂、施工空间狭小的跨越河流的大跨度中承式钢管拱桥拱肋安装施工方法。文章以贵阳龙凤大桥主桥为实例,通过与设计院推荐的缆索吊装悬拼方法进行对比分析,提出采用支架与提升相结合的拱肋安装施工方法,对丰富拱桥拱肋安装施工方法具有一定的实际意义。

This paper discusses the arch rib installation and construction method of long-span half-through steel tube arch bridge across rivers, which is located in the city with busy traffic, complex surrounding environment and narrow construction space. Taking the main bridge of Guiyang Longfeng Bridge as an example, through comparison and analysis with cable hanging method recommended by design institute, it proposes to combine the arch rib installation and construction method with support and lifting, which has certain engineering practical significance.