Architectural research

  • 제19권4호
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  • Pages.117-124
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  • 2017
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  • 1229-6163(pISSN)
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  • 2383-5575(eISSN)
대한건축학회 (Architectural Institute of Korea)
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FEM Analysis of RC Deep Beam Depending on Shear-Span Ratio

  • Lee, Yongtaeg (Department of Architecture Engineering, Hanbat National University) ;
  • Kim, Seongeun (Department of Architecture Engineering, Hanbat National University) ;
  • Kim, Seunghun (Department of Architecture Engineering, Hanbat National University)
  • 투고 : 2017.11.05
  • 심사 : 2017.12.18
  • 발행 : 2017.12.31
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초록

In this research, we carried out finite element analysis depends on the variations such as the strength of the main bar, concrete, shear-span ratio(a/d) and existence of shear reinforcing bar. Throughout the results of FEM analysis, we were able to figure out how each variation can effect on shear performance. As the strength of concrete increased, the maximum shear force enhancement effect of each specimen was evaluated. As a result, the shear strengthening effect was 51~97% for shear reinforced specimens, and 26~44% for non-shear reinforced specimens. As the yield strength of reinforcing bars increases, the shear reinforcement effect of the specimen the specimens without shear reinforcement were 3%~6% higher than those with shear reinforcement. Theoretical and analytical values were compared using the design equations obtained from the CEB code. Theoretical and analytical values were compared using the design equations obtained from the CEB code. As a result, the error rate was the highest at 3.64 in the S1.0-C0 series and the lowest at 1.46 in the S1.7-C1 series. Therefore, the design equation of the CEB code is estimated to underestimate the actual shear strength of deep beams that are not subjected to shear reinforcement.

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참고문헌

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