摘要
从钢箱梁天桥结构设计、基频控制等方面阐述了钢箱梁人行天桥设计时需要注意的几个问题,将预应力技术引入到大跨钢箱梁天桥设计当中,采用桁架单元温度骤降法施加预应力,分析钢箱梁结构性能,并在港工建设工程上得到了应用。
The article sets forth some issues for attention in the design of steel box beam pedestrian overpass from the aspects of the structural design and fundamental frequency control of steel box beam overpass, and introduces the pre-stressing technology into the design of long-span steel box beam overpass. The truss unit temperature drop method is used to add the prestressing. The structural performance of steel box beam is analyzed and is applied in the harbor construction projects.
出处
《城市道桥与防洪》
2017年第9期81-84,共4页
Urban Roads Bridges & Flood Control
关键词
钢箱梁
人行天桥
基频
预应力
steel box beam
pedestrian overpass
fundamental frequency
prestressing
