高墩连续刚构桥悬灌段冬季施工技术

Winter Construction Technology for the Cantilever Casting Section of High Pier Continuous Rigid Frame Bridge

高墩大跨度连续刚构桥悬灌施工技术,在我国现阶段桥梁施工中大范围的使用。对于较大跨径的连续刚构来说,悬灌节段多,施工周期一般较长,特别是北方,经常需要进入冬季施工,由于高空作业风大,保暖困难,给悬灌梁段施工带来质量隐患。列斜沟大桥连续刚构悬灌段施工中,通过采取必要的保暖措施,成功完成了悬灌段的冬季施工,为今后类似工程的施工提供了宝贵的经验。

The cantilever casting construction technology of continuous rigid frame bridge with high pier and long span is widely used in the present bridge construction of China. For large span continuous rigid frame bridge, there are alot of can- tilever casting segments, so the construction cycle is generally longer, especially in the north of China, we often need to carry on the construction in winter. Due to strong wind and difficult to keep warm in high altitude work, it brings the quality hidden troubles to the construction of cantilever casting beam section. During the construction for continuous rigid frame cantilever casting section of Liexiegou Bridge, we successfully completed the winter construction of the cantilever casting section by adopting necessary measures to keep warm, which could provide valuable experiences for the construction of similar projects.