Design Method of the Cable Saddle for CFRP Main Cable in Long-Span Suspension Bridge

Abstract:

A non-corrosion, high strength, light weight material – carbon fiber reinforced polymer (CFRP) is introduced to replace steel as cable system in long-span suspension bridge for improving loading efficiency, reducing maintenance cost, enlarging the span of suspension bridge. Because of the transverse weakness of CFRP, traditional cable saddle is not suitable. The contact forces between main cable and cable saddle slot under final state are investigated with a simplified analytical method. According to the mechanical characteristics of CFRP and the formulas deduced, the design suggestion of cable saddle for CFRP main cable of long-span suspension bridge are proposed.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 1557-1560
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.1557
• Online since: May 2011
• Authors: Hong Yu Zheng, Huai Yan Jiang, Zhi Tao Lu
• Keywords: Cable, Carbon Fiber Reinforced Polymer/Plastic (CFRP), Contact, Saddle, Suspension Bridge

References

[1] Tang Huan-cheng: World Traffic Engineering of Famous Straits, In Chinese. (China Railroad Press, Beijing, 2004).

[2] Mei Kui-hua: Study on Cable-stayed Bridges with CFRP Cables, In Chinese. (Dissertation of South-east University, Nanjing, 2005).

[3] Lou Zhuang-hong. Journal of Highway and Transportation Research and Development, Vol. 16, No. 3 (1999), p.35.

[4] Zhou Meng-bo: Suspension Bridge Handbook, In Chinese (China Communications Press, Beijing, 2003).