콘크리트학회논문집 (Journal of the Korea Concrete Institute)

  • 제28권4호
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  • Pages.407-417
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  • 2016
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  • 1229-5515(pISSN)
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  • 2234-2842(eISSN)
한국콘크리트학회 (Korea Concrete Institute)
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콘크리트 합성부재의 수평 전단강도 평가

Evaluation of Horizontal Shear Strength for Concrete Composite Members

  • Suh, Jung-Il (Dept. of Architecture & Architectural Engineering, Seoul National University) ;
  • Park, Hong-Gun (Dept. of Architecture & Architectural Engineering, Seoul National University) ;
  • Hong, Geon-Ho (Dept. of Architectural Engineering, Hoseo University) ;
  • Kang, Su-Min (Dept. of Architectural Engineering, Chungbuk National University) ;
  • Kim, Chul-Goo (Dept. of Architecture & Architectural Engineering, Seoul National University)
  • 투고 : 2015.10.21
  • 심사 : 2016.05.30
  • 발행 : 2016.08.31
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초록

본 연구에서는 콘크리트 합성부재의 합리적인 수평전단강도 평가를 위하여 합성보 전단 실험을 수행하였다. 실험 변수로는 PC부재의 유형(PC+RC, PSC+RC, SFRC+RC), 고강도 콘크리트 대비 저강도 콘크리트의 면적비, 전단철근비를 고려하였다. 실험 결과, 수평 균열 발생 시 부재 내력이 감소하였으며 전단철근의 기여도와 계면 상태가 수평전단강도에 영향을 주는 것으로 나타났다. 기존 실험 결과를 실험 방법 및 계면 상태로 분류하여 현행구조기준과 비교하였으며 분석결과를 바탕으로 개선된 설계방안을 제안하였다.

In this study, concrete composite beams were tested under two-point loading to evaluate horizontal shear strength. The test variables were a type of composite members (PC+RC, PSC+RC, SFRC+RC), area ratio of high-strength (60MPa) to low-strength concrete (24 MPa), and transverse reinforcement ratio. The test results showed that the contribution of transverse reinforcements and interface conditions had influence on horizontal shear strength. Existing and previous test results were classified according to test methods and the interface conditions and were compared with the predictions of current design codes. On the basis of test results, an improved design method was proposed.

키워드

참고문헌

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