Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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A Study on Shear Strength of Reinforced Concrete Beams according to Beam Effective Depth and Shear Reinforcement Spacing

보의 유효깊이와 전단철근간격에 따른 철근콘크리트보의 전단강도에 관한 연구

  • 유인근 (금오공과대학교 건축학부) ;
  • 박나정 (금오공과대학교 건축학부) ;
  • 백승민 (금오공과대학교 건축학부) ;
  • 김우석 (금오공과대학교 건축학부) ;
  • 곽윤근 (금오공과대학교 건축학부)
  • Received : 2020.08.19
  • Accepted : 2020.11.05
  • Published : 2020.11.30
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Abstract

Although many studies have been conducted on some factors (i.e., tensile reinforcement ratio, shear span-to-depth ratio, concrete compressive strength, and beam width-to-depth ratio) affecting the shear strength of concrete, studies on the effect of the cross-sectional size on the shear strength have not been achieved. For this reason, the purpose of this study is to conduct a study on the shear strength of reinforced concrete beams according to beam effective depth and shear reinforcement spacing. Based on these experimental results, the authors intend to use them as basic data for shear design of reinforced concrete beams by comparing and analyzing theoretical values by standard equations such as KBC 2016 and ACI 318-19 as well as proposed equations. As a result, each series of No.2 specimens (SH1-2, SH2-2 and SH3-2) with Smax = 0.67d (d/s = 1.5) similar to Smax = 0.7d by the CSA standard is 1.00 to 1.41. It was found that the current standard for shear bars = d/2 may be somewhat relaxed, but additional studies are needed to reflect this in the Korean Building Code.

Keywords

Acknowledgement

이 연구는 2020년도 금오공과대학교 교내 연구비 지원에 의한 결과의 일부임. 과제번호:2020-0203-0001

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