墩身钢筋笼整体预制安装标准化施工工艺在跨海大桥建设中的应用

Application of pier reinforcement cage precast installation construction technology in the construction of cross sea bridges

近年来,偶有跨海桥梁在现浇墩身施工中探索墩身钢筋笼整体预制、安装施工工艺,因技术等各种原因未能彻底形成大面积工厂化作业模式,对工程整体工效提高效果不显著,较现浇墩身传统钢筋现场绑扎施工工艺优势不明显。文章结合连云港市海滨大道跨海大桥引桥现浇墩身施工,介绍跨海大桥大截面墩身钢筋笼整体预制、安装工厂化作业施工工艺,该工艺工效高,安全风险低,大幅提高了墩身钢筋安装质量和保护层合格率,改善了施工人员作业环境,为未来跨海大桥墩身标准化施工提供了思路。

In recent years, occasionally cross sea bridge in the construction of cast-in-situ pier explore pier reinforcing cage integral prefabricated, installation construction technology, due to technical and other reasons, it is failed to form a large area factory operation mode completely, the overall efficiency enhancement effect was not significant, its advantage is not obvious compared with the traditional cast-in-situ pouring pier steel reinforced field assembling construction technology. According to Lianyungang City Waterfront Avenue cross sea bridge approach cast-in-situ pouring pier construction, we introduced the cross sea bridge section pier reinforcing cage integral prefabricated, and the installation factory operation process. The process is high efficiency, low safety risk, has substantially increased the installation quality of the pier reinforced and the qualified rate of protective layer, has improved the working environment of construction personnel, which provide a train of thought for the future cross sea bridge pier standardization construction.