Structural Engineering and Mechanics

  • 제20권6호
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  • Pages.727-745
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  • 2005
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Strength and ductility of biaxially loaded high strength RC short square columns wrapped with GFRP jackets

  • Hodhod, O.A. (Structural Engineering Department, Cairo University) ;
  • Hassan, W. (Department of Strength of Materials and Quality Control, HBRC) ;
  • Hilal, M.S. (Structural Engineering Department, Cairo University) ;
  • Bahnasawy, H. (Department of Strength of Materials and Quality Control, HBRC)
  • 투고 : 2004.12.07
  • 심사 : 2005.05.20
  • 발행 : 2005.08.20
⟨ 이전 논문 다음 논문 ⟩

초록

The present study is an experimental investigation into the behaviour of high strength concrete square short columns subjected to biaxial bending moments and strengthened by GFRP laminates. The main objectives of the study are: to evaluate the improvement in the structural performance of HSC short square columns subjected to small biaxial eccentricity when strengthened by externally applied FRP laminates, and to investigate the optimum arrangement and amount of FRP laminates to achieve potential enhancement in structural performance especially ductility. The parameters considered in this study are: number of FRP layers and arrangement of wraps. The load eccentricity is kept corresponding to e/t = 0.125 in two perpendicular directions to the columns principal axes, and the wraps are applied in single or double layers (partial or full wrapping). In the present work, test results of five full scale concrete columns are presented and discussed. The study has shown that FRP wraps can be used successfully to enhance the ductility of HSC columns subjected to biaxial bending by 300%.

키워드

참고문헌

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피인용 문헌

  1. Behaviour of CFRP-strengthened slender square RC columns vol.60, pp.7, 2008, https://doi.org/10.1680/macr.2008.60.7.523
  2. Behavior of eccentrically loaded high strength concrete columns jacketed with FRP laminates vol.138, 2017, https://doi.org/10.1016/j.conbuildmat.2017.02.016
  3. Experimental behavior of eccentrically loaded RC slender columns strengthened using GFRP wrapping vol.17, pp.3, 2014, https://doi.org/10.12989/scs.2014.17.3.271
  4. Experimental behavior of eccentrically loaded R.C. short columns strengthened using GFRP wrapping vol.39, pp.2, 2005, https://doi.org/10.12989/sem.2011.39.2.207
  5. Investigation on the behaviour of partial wrapping in comparison with full wrapping of square RC columns under different loading conditions vol.168, pp.None, 2005, https://doi.org/10.1016/j.conbuildmat.2018.02.003
  6. Influence of the Location of CFRP Strips on the Behaviour of Partially Wrapped Square Reinforced Concrete Columns under Axial Compression vol.15, pp.None, 2005, https://doi.org/10.1016/j.istruc.2018.06.007
  7. Performance evaluation of intermittently CFRP wrapped square and circularised square reinforced concrete columns under different loading conditions vol.15, pp.5, 2019, https://doi.org/10.1080/15732479.2019.1572201
  8. Compressive behavior of galvanized steel wire mesh (GSWM) strengthened RC short column of varying shapes vol.7, pp.3, 2020, https://doi.org/10.12989/smm.2020.7.3.215