Structural Engineering and Mechanics

  • 제5권4호
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  • Pages.339-353
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  • 1997
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Experimental bond behavior of hybrid rods for concrete reinforcement

  • Nanni, Antonio (Department of Architectural Engineering, The Pennsylvania State University) ;
  • Nenninger, Jeremy S. (Department of Architectural Engineering, The Pennsylvania State University) ;
  • Ash, Kenneth D. (BSW) ;
  • Liu, Judy (Department of Architectural Engineering, The Pennsylvania State University)
  • 발행 : 1997.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

Fiber reinforced plastic (FRP) rods provide certain benefits over steel as concrete reinforcement, such as corrosion resistance, magnetic and electrical insulation, light weight, and high strength. FRP composites can be combined with a steel core to form hybrid reinforcing rods that take advantage of properties of both materials. The objective of this study was to characterize the bond behavior of hybrid FRP rods made with braided epoxy-impregnated aramid or poly-vinyl alcohol FRP skins. Eleven rod types were tested using two concrete strengths. Specific topics examined were bond strength, slip, and type of failure in concentric pull-out tests from concrete cubes. From analysis of identical pull-out tests on both hybrid and steel rods, information on relative bond strength and behavior were obtained. It is concluded that strength is similar but slip in hybrid rods is much higher. Hybrid rods failed either by pull-out or splitting the concrete block (with or without yielding of the steel core). Experimental data showed consistency with similar test results presented in the literature.

키워드

과제정보

연구 과제 주관 기관 : National Science Foundation

참고문헌

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피인용 문헌

  1. Bond Strength of Standard and High-Modulus GFRP Bars in High-Strength Concrete vol.26, pp.3, 2014, https://doi.org/10.1061/(ASCE)MT.1943-5533.0000758
  2. Bond strength of GFRP bars in ultra-high strength concrete using RILEM beam tests vol.10, 2017, https://doi.org/10.1016/j.jobe.2017.02.005
  3. Behaviour of Concrete Beams Reinforced with Hybrid FRP Composite Rebar vol.13, pp.1, 2010, https://doi.org/10.1260/1369-4332.13.1.81
  4. Development of ductile composite reinforcement bars for concrete structures vol.41, pp.9, 2008, https://doi.org/10.1617/s11527-007-9344-8
  5. Low-Cycle Flexural Fatigue Behavior of Concrete Beam Reinforced with Hybrid FRP-Steel Rebar vol.2018, pp.1687-8094, 2018, https://doi.org/10.1155/2018/6986047
  6. The bond between glass-fibre-reinforced polymer bars and ultra-high-strength concrete vol.171, pp.4, 2018, https://doi.org/10.1680/jcoma.16.00032
  7. Modeling of bond behavior of hybrid rods for concrete reinforcement vol.5, pp.4, 1997, https://doi.org/10.12989/sem.1997.5.4.355
  8. Tensile Fracture and Bond Properties of Ductile Hybrid FRP Reinforcing Bars vol.15, pp.1, 1997, https://doi.org/10.1177/096739110701500102
  9. FRP 하이브리드 보강근을 가지는 RC보의 반복하중에 대한 역학적 성능 평가 vol.21, pp.1, 2017, https://doi.org/10.11112/jksmi.2017.21.1.009
  10. Influence of the binder technological shrinkage on the strength of composite reinforcement vol.350, pp.None, 1997, https://doi.org/10.1051/matecconf/202135000001