摘要
采用连续拖拉法安装高速公路钢箱梁,对正在通车的公路不需要进行全封道,且不影响施工部位下方的正常通车,可以快速通过正在通车的公路。拖拉法安装钢箱梁采用双穿心油压千斤顶提供连续动力牵引,采用四氟乙烯和不锈钢板支撑减少摩擦力。在汉蔡高速公路钢箱梁安装过程中采用拖拉法施工,效果很好。
A continuous lauching method was used to install the steel box girders for an expressway. It was not necessary to enclose fully the expressway, which did not affect the normal traffic below the positions under constructionl The Continuous dynamic traction was provided by double piercing hydraulic lacks during installation of the girders, and also tetrafluoroethylene and stainless steel plate were used to reduce the friction. When using this method of installing the Steel box girders for Wuhan-Caidian Expressway, an excellent effect was obtained.
出处
《钢结构》
2010年第1期58-62,共5页
Steel Construction
关键词
立交桥
钢箱梁
拖拉
跨越公路
overpass, steel box girder
lauching method
crossover highway