Journal of the Korea institute for structural maintenance and inspection (한국구조물진단유지관리공학회 논문집)

Korea Institute for Structural Maintenance Inspection (한국구조물진단유지관리공학회)
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A Proposal of Simplified Bond Stress-Slip Model between FRP Plank and Cast-In-Place Concrete

FRP 판과 현장타설 콘크리트 사이의 단순 부착모델 제안

  • Received : 2007.01.02
  • Published : 2008.01.30
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Abstract

The use of hybrid FRP-concrete structures with a dual purpose of both permanent formwork and reinforcement, has been considered in some studies recently. For the FRP plank and the concrete to act as a composite structural member a satisfactory bond at the interface between the smooth surface of the pultruded plank and the cast-in-place concrete must be developed. Sand was bonded to the pultruded FRP plank using a commercially available epoxy system. In applying general analysis techniques to evaluate the performance of composite structures with FRP stay-in-place forming, it is essential that characteristics of the bond stress-slip relation be identified. In this study I would like to propose a simplified bilinear bond stress-slip model for FRP composite structures.

최근에 상용 FRP 판(plank)을 콘크리트 구조물의 영구 거푸집 및 보강재로 이용하기 위한 연구가 진행되고 있다. FRP 판과 타설 콘크리트가 합성효과를 발휘하기 위해서는 두 재료간의 부착이 중요한 요인 중의 하나이다. 이러한 부착을 확보하기 위하여 FRP 판에 모래를 일반적으로 건설현장에서 많이 사용하는 에폭시를 이용하여 부착하였다. FRP 판과 콘크리트 합성구조의 구조적 거동을 이해하기 위해서는 FRP판과 타설 콘크리트 사이의 정량적인 국부 부착모델이 필요하다. 본 연구에서는 이와 같은 합성구조 시스템에 간단히 적용할 수 있는 단순 부착모델을 제안한다.

Keywords

References

  1. 건설교통부, "교량현황조서", 2005
  2. 건설교통부, "교량관리시스템의 운영 및 유지관리", 2002
  3. 유승운, 배한욱, Oliva, M.G., and Bank, L.C., "FRP 판을 거푸집 및 보강재로 활용한 콘크리트 보 의 실험적연구", 한국콘크리트학회 논문집, 19권 1호, 2007, pp. 67-74
  4. 조근희, 조정래, 이영호, 김병석, "FRP-콘크리트 계 면의 파괴 역학적 부착모델", 대한토목학회 논문집, 24권 4호, 2004, pp. 653-661
  5. ACI, "Guide for the Design and Construction of Structural Concrete Reinforced with FRP Bars", ACI 440.1R-06, USA, 2006
  6. Bank, L.C., "Composites for construction: Structural design with FRP materials", John Wiely & Sons, USA, 2006
  7. Deskovic, N., Triantafillou, T.C., and Meier, U., "Innovative design of FRP combined with concrete: Short-term behavior", J. of Structural Eng., Vol. 121, No. 7, 1995, pp. 1069-1078 https://doi.org/10.1061/(ASCE)0733-9445(1995)121:7(1069)
  8. Hall, J.E., and Mottram, J.T., "Combined FRP reinforcement and permanent formwork for concrete members", J. of Composites for Constructions, Vol. 2, No. 2, 1998, pp. 78-86 https://doi.org/10.1061/(ASCE)1090-0268(1998)2:2(78)
  9. Dieter, D.A., Dietsche, J.S., Bank, L.C., Oliva, M.G., and Russell, J.S., "Concrete bridge decks constructed with FRP stay-inplace forms and FRP grid reinforcing", J. of the Transportation Research Board, No. 1814, 2002, pp. 219-226
  10. Cheng, L., Zhao, L., Karbhari, V.M., Hegemier, G.A., and Seible, F., "Assessment of a steel-free fiber reinforced polymer-composite modular bridge system", J. of Structural Engineering, Vol. 131, No. 3, 2005, pp. 498-506 https://doi.org/10.1061/(ASCE)0733-9445(2005)131:3(498)
  11. Berg, A.C., Bank, L.C., Oliva, M.G., and Russell, J.S., "Construction and cost analysis of an FRP reinforced concrete bridge deck", Construction and Building Materials, Vol. 20, 2006, pp. 515-526 https://doi.org/10.1016/j.conbuildmat.2005.02.007
  12. Bank, L.C., Oliva, M.G., Bae, H.U., Barker, J., and Yoo, S.W., "Pultruded FRP plank as formwork and reinforcement for concrete structures", COMPOSITES 2006 Convention and Trade Show, ACMA, USA. 2006
  13. Shao, Y., Wu, Z.S., and Bian, J., "Wet-bonding between FRP laminates and cast-in-place concrete", Int. Symposium on Bond Behaviour of FRP in Structures, IIFC, Hong Kong, 2005
  14. Nakaba, K., Kanakubo, T., Furuta, T., and Yoshizawa, H., "Bond behavior between friberreinforced polymer laminates and concrete", ACI Structural J., Vol. 98, 2001, pp359-367
  15. Dai, J., Ueda,T., and Sato,Y., "Development of the nonlinear bond stress-slip model of fiber reinforced plastics sheet-concrete interfaces with a simple method", J. of Composites for Constructions, Vol. 9, No. 1, 2005, pp. 52-62 https://doi.org/10.1061/(ASCE)1090-0268(2005)9:1(52)
  16. Lorenzis, L., Miller, B. and Nanni, A., "Bond of fiber-reinforced polymer laminates to concrete", ACI Materials J., Vol. 98, 2001, pp. 256-264
  17. Teng, J.G., Chen, J.F., Smith, S.T., and Lam, L., "FRP Strengthened RC structures", John Wiely & Sons, 2002
  18. Taljsten, B., "Defining anchor lengths of steel and CFRP plates bonded to concrete", Int. J. Adhesion and Adhesives, Vol. 17, 1997, pp. 319-327 https://doi.org/10.1016/S0143-7496(97)00018-3