• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 27 Issue 2
Apr.  2014
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Article Contents
ZHUGE Ping, ZHANG Zihua, WANG Sicong, DING Yong, QIANG Shizhong. Anti-slip Performance of Interface between Carbon Fiber-Reinforced Plastic Main Cable and Cable Clamp for Large-Span Suspension Bridges[J]. Journal of Southwest Jiaotong University, 2014, 27(2): 208-212. doi: 10.3969/j.issn.0258-2724.2014.02.004
Citation: ZHUGE Ping, ZHANG Zihua, WANG Sicong, DING Yong, QIANG Shizhong. Anti-slip Performance of Interface between Carbon Fiber-Reinforced Plastic Main Cable and Cable Clamp for Large-Span Suspension Bridges[J]. Journal of Southwest Jiaotong University, 2014, 27(2): 208-212. doi: 10.3969/j.issn.0258-2724.2014.02.004

Anti-slip Performance of Interface between Carbon Fiber-Reinforced Plastic Main Cable and Cable Clamp for Large-Span Suspension Bridges

doi: 10.3969/j.issn.0258-2724.2014.02.004
  • Received Date: 21 Jan 2013
  • Publish Date: 25 Mar 2014
  • In order to solve the slip problem between main cable and clamp at saddles of large-span suspension bridges, the anti-slip performance of the interface between carbon fiber reinforced plastic (CFRP) cable and cable clamp was investigated. The frictional coefficient calculation formula of the interface was derived according to the equilibrium condition between the cable tension and the friction force on the interface. Based on this formula, the friction coefficient of the cable-clamp interface was obtained through laboratory model test using a cable composed of 19 CFRP tendons. Then, the test results of frictional coefficient were used to analyze the anti-slip performance of the main cable-clamp system of a CFRP cable suspension bridge with a main span of 3 500 m, where the CFRP tendons had a spirally indented surface. The results show that the friction coefficient of the CFRP main cable-cable clamp interface is up to 0.331, which is higher than that of steel cable, and meet the requirement of engineering application. Therefore, when the CFRP tendons with a spirally indented surface are applied to the main cables of large-span suspension bridges, the cable-clamp interface is good enough to meet the requirement in anti-slip performance even if the cable clamps are designed in conventional shape and with an inner surface not granulated specially.

     

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