摘要
结合工程设计,简要介绍了多跨连续桥梁合拢方式和技术方案,并简要说明其特点和适用范围,认为桥梁合拢段设计和施工所选取的方案、预应力张拉顺序大小、顶推设计、合拢先后顺序、体系转换时间节点和工艺等均是重要的控制要素,必须予以高度重视,可作为桥梁设计人员进行设计施工时的参考。
Combined with the engineering design, this paper mainly introduces the closure method and technological scheme of multi - span continuous bridge and briefly introduces the features and scope of application. We think that some important control factors includes the design of closure segment and the selected scheme of construction, sequence of prestressed tension, design of incremental launching, sequence of the closure, time nods of the system transformation and technology. All these should be paid high attention and these can be regarded as references for bridge designers during the construction design.
出处
《北方交通》
2014年第2期26-28,共3页
Northern Communications
关键词
多跨桥梁
合拢
劲性骨架
Multi - span bridge
Closure
Stiff skeleton
