Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Evaluation of Shear Behavior According to Size Effect of Reinforced Concrete Beams Using Recycled Coarse Aggregates

순환굵은골재 콘크리트보의 크기효과에 따른 전단거동 평가

  • 김봉필 (금오공과대학교 건축학부) ;
  • 신우철 (금오공과대학교 건축학부) ;
  • 이호경 (금오공과대학교 건축학부) ;
  • 백승민 (금오공과대학교 건축학부) ;
  • 김우석 (금오공과대학교 건축학부) ;
  • 곽윤근 (금오공과대학교 건축학부)
  • Received : 2016.11.09
  • Accepted : 2017.08.30
  • Published : 2017.10.30
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Abstract

In this study, we investigated the size effect in accordance with width-to-depth ratio (1.0, 1.5, 2.0, 2.5, and 3.0) of reinforced concrete beams as well as comparison with two types of beams using natural coarse aggregates (NCAs) and recycled coarse aggregates (RCAs). As a test result, while width-to-depth ratio increased from 1.0 to 1.5, shear strengths of specimens using NCAs and RCAs mostly decreased. Also, the overall reduction ratio was similar to that of NCA specimens by 32% and RCA specimens by 31.8%. The ratio of the experimental value to the theoretical value by the design equation for shear in reinforced concrete by KBC, CEP-FIP, JSCE, and AIJ codes etc. is stable from 1.14 to 1.46.

Keywords

Acknowledgement

Supported by : 금오공과대학교

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