云上草原斜拉平台设计关键技术

“天空之阶”景观斜拉平台采用独特的单悬臂结构,悬臂长度为80.8 m,桥面为变宽双幅形式,平面呈A字形,中间采用4道横梁相连,悬臂端部设观景平台。主梁采用热轧型钢桁架,索塔为钢结构十字形断面,塔梁采用球铰支座约束。论文从结构体系、复杂风环境、恶劣施工条件、BIM辅助设计等方面详细阐述该景观斜拉平台的设计要点和关键技术。

党家沟大桥箱梁1号梁段无托架施工技术

:结合工程实际 ,介绍在曲线箱梁 0号段上利用两只三角形挂篮的主桁架联体拼装 ,实现 1号梁段的无托架悬灌砼施工。

Key technology and innovation of Sutong Bridge

Sutong Bridge is a cable-stayed bridge across Yangtze River with the main span of 1 088 m. This article outlines technical challenges,key technology and innovation in the design and construction such as scour protection,lowering steel cofferdam,construction platform establishment,construction and control of pylons,fabrication and damping of long cables,erection and control of steel box girders.