京沧高速公路沧州段跨津浦铁路分离式立交桥转体施工工艺研究  

Rotation Construction Technology Research on Separated Interchange Bridge across Jinpu Railway at Cangzhou Section of Beijing-Cangzhou Expressway

作　　者：李力[1] 王兴国[1] 

机构地区：[1]河南理工大学土木工程学院,焦作454003

出　　处：《北方交通》2011年第6期116-118,共3页Northern Communications

摘　　要：京沧高速公路沧州段跨越津浦铁路的主桥工程是一座上、下行整幅的预应力混凝土连续刚构,实施转体的桥梁为跨径2×54m的T构。为减少上部结构施工对铁路行车安全的影响,确定采用平衡转体的施工技术,整个转体过程安全可靠,为华北桥梁转体施工提供参考依据。The upper and lower section of the main bridge engineering across Jinpu railway at Cangzhou section of Beijing-Cangzhou Expressway is a full-size pre-stressed concrete continuous rigid frame.The rotating bridge is a T type structure with the span of 2×54m.In order to reduce the influence of upper structure construction on railway operation safety,the construction technology of equilibrium rotation is determined to be adopted.The whole rotation process is safe and reliable,providing references for bridge rotation construction in North China.

关 键 词：连续刚构桥 平衡转体 上下球铰 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]