跨越高速公路小半径曲线钢箱梁吊装拼接安全施工技术

Safety Construction Technology of Hoisting and Stitching of Steel Box Girder with Small Radius Curve Crossing Expressway

随着我国经济的发展,钢箱梁的使用范围越来越广,特别是在城市立交桥和跨线桥中应用广泛,遇到的跨越环境情况越来越复杂,跨度越来越大。论文结合仰义枢纽A匝道桥跨金丽温高速公路小半径曲线钢箱梁吊装拼接安全技术实例,探讨了跨越高速公路小半径曲线钢箱梁吊装拼接安全施工的关键技术,从安全吊装拼接技术方案、交通导改组织和安全防护等方面进行了论述,望对类似工程有所帮助。

With the development of China＇s economy, the use of steel box girder is more and more extensive, especially in urban overpass and cross-bridge, and the encountered environment is more and more complex, the span is growing. This paper discusses the key technology of safety construction of hoisting and stiching of steel box grider with small radius crossing expressway, combining with the project example of safety construction technology of hoisting and stitching of steel box girder with small radius in Yangyi hub A circle bridge crossing JinLiWen expressway and analyzes it form the aspects of scheme of safety hosting and stitching technology, traffic reform organization and safety prevention, hoping to provide help to similar engineering.