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Application and Practice of Replaceable Main Cable Strand Anchorage Scheme in Self-Anchored Suspension Bridges
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(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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    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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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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History
  • Received:March 25,2024
  • Revised:June 09,2024
  • Adopted:
  • Online: September 30,2024
  • Published: