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双向预应力结构在现代化的城市建设中使用越来越普遍,笔者以大体积现浇混凝土后张法为例浅析其施工要点。肯尼斯·卡翁达国际机场高架桥与主航站楼连接,形成对客流的到达和出发的合理分流,高架桥主桥:采用4x30m双向预应力混凝土现浇连续箱梁,全长120.0m,标准桥面全宽17.2m。为典型的大体积双向预应力现浇箱梁。
The use of bidirectional prestressed structures in modern urban construction is more and more common. The author analyzes the construction essentials of large-volume cast-in-place concrete post-tensioning method. Kenneth Kaunda International Airport Viaduct with the main terminal building, forming a reasonable diversion from the arrival and departure of the passenger flow, the viaduct main bridge: 4x30m bidirectional prestressed concrete cast-in-situ continuous box girder, a total length of 120.0m, the standard bridge Full width 17.2m. It is a typical large volume bidirectional prestressed cast-in-place box girder.