全预制墩身干接缝施工通道及操作平台设计与应用

The Design and Application of Prefabricated Pier Dry Jointed Form Construction Passage and Operation Platform

港珠澳大桥桥梁工程深水区桥墩采用全预制结构,高墩区分节墩身连接采用干接缝,在国内尚属首次应用。施工通道与作业平台采用钢构材质的设计结构与插销式牛腿的受力转换,不仅满足了高空干接缝施工设计规范要求,同时克服了不能在墩身设置预埋件的难题。

Prefabricated structure was used in the Pier in deepwater area of Hong Kong-Zhuhai-Macao Bridge, where the dry Jointed form was utilized for the first time domestically. Design structure of steel and the force transformation of bolt corbel were utilized in construction passage and operation platform, all requirements of the dry jointed form were met, at the same time, the problem of embedded parts can be solved.