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2014 Vol.27, Issue 5 Preview Page
Evaluation of Punching Shear for Flat Plates Using GFRP Plate Shear Reinforcement

GFRP 판을 전단보강재로 사용한 플랫 플레이트의 뚫림전단 성능 평가

Lee Young Hak
,
Kim Min Sook
,
Hwang Seung Yeon
,
Choi Jinwoong
,
Kim Heecheul†*
Department of Architectural Engineering, Kyung Hee University, Yongin, 446-701, Korea
Department of Architectural Engineering, Kyung Hee University, Yongin, 446-701, Korea
Department of Architectural Engineering, Kyung Hee University, Yongin, 446-701, Korea
Department of Architectural Engineering, Kyung Hee University, Yongin, 446-701, Korea
Department of Architectural Engineering, Kyung Hee University, Yongin, 446-701, Korea
•*Corresponding author Kim, Heecheul kimhc@khu.ac.kr
2014. pp. 413-420
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Abstract

The purpose of this study is to experimentally investigate the shear behavior of flat plate that reinforced by embedded GFRP(glass fiber reinforced polymer) plate with openings. Shape of the GFRP shear reinforcement is a plate with several openings to ensure perfect integration with concrete. The test was performed on 7 specimens to check shear strength of flat plate that reinforced by GFRP plate. The parameters include the spacing of the shear reinforcement and amount of the shear reinforcement. The result of test showed that when amount of shear reinforcement was increased, shear strength improved. The result of test showed that maximum shear strength was confirmed when spacing of shear reinforcement was 0.3d. The calculation of the shear strength of reinforced flat plate with GFRP plate based on the KCI was compared with the test results.

본 논문에서는 유공형 형상의 GFRP 판으로 전단 보강된 플랫 플레이트의 전단거동을 실험을 통해 평가하였다. GFRP 판은 개구부가 있는 판의 형태로서 콘크리트와의 일체화 거동을 위하여 콘크리트에 매립하여 시공하였다. GFRP 판으로 전단 보강된 플랫 플레이트의 전단 성능 실험을 위하여 총 7개의 시험체에 대한 전단 실험을 수행하였다. 실험 변수로는 전단 보강량, 전단 보강 간격을 선정하였다. GFRP 판의 전단 보강량에 따른 비교결과, 전단 보강량이 증가할수록 전단강도도 증가하는 결과를 보여주었다. GFRP 전단 보강 간격에 따른 비교결과, 전단 보강 간격이 0.3d 일 때 가장 높은 전단강도를 확인하였다. 실험결과를 바탕으로 KCI에서 제시하고 있는 전단강도식을 수정하여 GFRP 판에 적용이 가능한지 평가하였다.

Keywords
GFRP, flat plate, punching shear
전단 보강, GFRP, 플랫 플레이트, 뚫림 전단
References
1
A., Abdullah, C. G., Bailey and Z. G., Wu, 2013. Tests Investigating the Punching Shear of a Column-slab Connection Strengthened with Non-prestressed or Prestressed FRP Plates. Constr. &Build. Mater., 48, pp.1134-1144.
10.1016/j.conbuildmat.2013.07.012
2
C., Dulude, M., Hassan, E. A., Ahmed and B., Benmokrane, 2013. Punching Shear Behavior of Flat Slabs Reinforced with Glass Fiber-Reinforced Polymer Bars. ACI Struct. J., 110, pp.723-733.
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Hwang S. Y. Kim M. S. Lee Y. H. Kim 2014Evaluation of Shear Strength for Reinforced Flat Plates Embedded with GFRP PlatesJ. Comput. Struct. Eng. Inst. Korea272121128510.7734/COSEIK.2014.27.2.121
10.7734/COSEIK.2014.27.2.121
4
K. W., Johansen, 1998. Yield line formulate for slabs. Cement and Concrete Association, London, p.120.
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Korea Concrete Institute2011KCI Concrete Structure Design Code 2011Seoul548
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N., Lawler and M. A., Polak, 2011. Development of FRP Shear Bolts for Punching Shear Retrofit of Reinforced Concrete Slabs. J. Compos. Consrt., 15, pp.591-601.
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Information
  • Publisher :Computational Structural Engineering Institute of Korea
  • Publisher(Ko) :한국전산구조공학회
  • Journal Title :Journal of the Computational Structural Engineering Institute of Korea
  • Journal Title(Ko) :한국전산구조공학회 논문집
  • Volume : 27
  • No :5
  • Pages :413-420
  • Received Date : 2014-07-03
  • Revised Date : 2014-07-22
  • Accepted Date : 2014-07-24
  • DOI :https://doi.org/10.7734/COSEIK.2014.27.5.413
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