Design and construction of large-scale CFRP-based ground anchors in Aizhai Bridge

Kuangyi Zhang, Zhi Fang, Antonio Nanni

Research output: Contribution to conferencePaper

Abstract

A large-scale CFRP-based ground anchor system was developed and applied beneath the side hangers in the Aizhai Bridge. This is a suspension bridge with main span of 1, 176 m located in Hunan, China. In this paper, design and construction of the ground anchor system is introduced. The system overall lock-off load as a superposition of seven ground anchors is up to 7, 200 kN. Each ground anchor uses Carbon Fiber-Reinforced Polymer (CFRP) as the tendon, and Reactive Powder Concrete (RPC) grout as the bond medium in both above-ground anchor head and below-ground anchor part. The system is currently fulfilling its intended purpose as a component of the bridge structure.

Conference

ConferenceJoint Conference of the 12th International Symposium on Fiber Reinforced Polymers for Reinforced Concrete Structures, FRPRCS 2015 and the 5th Asia-Pacific Conference on Fiber Reinforced Polymers in Structures, APFIS 2015
CountryChina
CityNanjing
Period12/14/1512/16/15

Keywords

  • Anchoring system
  • CFRP (Carbon Fiber-Reinforced Polymer)
  • Ground anchor
  • Grout
  • RPC (Reactive Powder Concrete)
  • Tendon

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Materials Science(all)

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  • Cite this

    Zhang, K., Fang, Z., & Nanni, A. (2015). Design and construction of large-scale CFRP-based ground anchors in Aizhai Bridge. Paper presented at Joint Conference of the 12th International Symposium on Fiber Reinforced Polymers for Reinforced Concrete Structures, FRPRCS 2015 and the 5th Asia-Pacific Conference on Fiber Reinforced Polymers in Structures, APFIS 2015, Nanjing, China.