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可换式主缆索股锚固方案在自锚式悬索桥中的应用实践
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作者单位:

(1.上海市城市建设设计研究总院(集团)有限公司,上海 200125; 2.上海工业化装配化市政工程技术研究中心,上海 200125; 3.柳州欧维姆机械股份有限公司,广西 柳州 545006; 4.江苏法尔胜缆索有限公司,江苏 江阴 214433)

作者简介:

Fangjian Hu, Ph.D. Senior Engineer. Shanghai Urban Construction Design & Research Institute (Group) Co., Ltd. Research Direction: Bridge Design and Research, BIM Technology R&D.

通讯作者:

Fangjian Hu

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Application and Practice of Replaceable Main Cable Strand Anchorage Scheme in Self-Anchored Suspension Bridges
Author:
Affiliation:

(1.Shanghai Urban Construction Design & Research Institute (Group) Co., Ltd., Shanghai 200125, China; 2.Shanghai Engineering Research Center of Industrialized & Prefabricated Municipal Civil Engineering, Shanghai 200125, China; 3.Liuzhou OVM Machinery Co., Ltd. Liuzhou 545006, Guangxi Province, China; 4.Jiangsu Fasten Company Limited, Jiangyin 214433, Jiangsu Province, China)

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    摘要:

    自锚式悬索桥主缆索股通常直接锚固在混凝土梁或钢梁的背面,这种构造形式在耐久性方面存在缺陷。为解决该问题,提出一种以成品索+连接轴的新型组合锚固结构,锚固结构通过连接轴与主缆索股末端相连。文章对该新型锚固结构的设计思路和细节进行了详细描述,给出了安装方案以及桥梁运营期间的拆除和再安装方案,通过足尺静载试验验证了其可行性。该新型构造能提高主缆锚固段的耐久性,实现其可换性,可拓展至其他同类应用场景,具有一定的参考价值。

    Abstract:

    The main cable strands of self-anchored suspension bridges are typically anchored directly to the back of concrete or steel girders, a construction method that has durability issues. To address this problem, a new combined anchorage structure using finished cables and a connecting shaft is proposed. This anchorage structure is connected to the end of the main cable strands via the connecting shaft. This article provides a detailed description of the design concept and specifics of this new anchorage structure, including instal-lation methods and procedures for removal and reinstallation during bridge operation. Full-scale static load tests validated the feasibility of the proposed design. This new structure improves the durability of the main cable anchorage section, allows for its replaceability, and can be extended to other similar applica-tions, offering considerable reference value.

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引用本文

Fangjian Hu, Long Chen, Zineng Huang, Ji'an Shan Application and Practice of Replaceable Main Cable Strand Anchorage Scheme in Self-Anchored Suspension Bridges. Prestress Technology 2024,2(03):47-56. 10.59238/j. pt.2024.03.005

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  • 收稿日期:2024-03-25
  • 最后修改日期:2024-06-09
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  • 在线发布日期: 2024-09-30
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