中国土木工程学报 关键词： 预应力混凝土； 斜拉桥； 加固； 合龙段； 置换 [gap=1756]Keywords: prestressed concrete; cable stayed bridges; strengthening; closure segment; replacement
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Based upon Yonghe Cable-stayed Bridge,the construction of removal of old closure segment was presented. According to the computational analysis of structural behavior changes induced by removal of old closure segment,construction control targets,safety measures and monitoring instruments were presented.
以永和斜拉桥合龙段维修工程为背景,介绍了合龙段拆除的施工方法,依据合龙段拆除引起的结构性能变化的计算分析,提出了合龙段拆除的施工控制目标和结构安全防控措施,阐述了施工监测的主要内容。
参考来源 - 既有PC斜拉桥合龙段拆除的施工控制·2,447,543篇论文数据，部分数据来源于NoteExpress
合龙段是连续梁或其他连续结构普遍需要处理的问题之一。
Joint sections in continuous beams or other continuous structures are the critical sections usually encountered and necessary to be considered in design.
合龙段施工是预应力混凝土连续箱梁施工的关键环节，关系到全桥的受力和线形状况。
The closure segment's construction is the key part of continuous concrete box girder's construction, and it is related to stress and line form condition of the whole bridge.
而后将灰色理论用于后续梁段的控制计算中，取得了良好的控制效果，为最终合龙奠定基础。
We also used the gray theory in the following beams control computation and obtained good control effect, preparing for the final combination.
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