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Bond Strength between Concrete and Steel and Shear Behavior of Shear Connectors of H-shaped Steel Encased Composite Columns

H형강 매입형 합성기둥의 부착강도 및 전단연결재의 전단거동

  • Wang, Ning (Dept. of architectural engineering, Chung-ang University) ;
  • Lee, Hye Lim (Lotte World Tower Structural Team, Lotte Engineering & Construction Co., Ltd.) ;
  • Lee, Myung Jae (Dept. of architectural engineering, Chung-ang University)
  • 왕녕 (중앙대학교, 건축공학과) ;
  • 이혜림 (롯데건설, 롯데월드타워 구조팀) ;
  • 이명재 (중앙대학교, 건축공학과)
  • Received : 2017.03.29
  • Accepted : 2017.09.06
  • Published : 2017.10.27

Abstract

The objective of this study is to investigate the influence that how does contact surface between concrete and steel influence the steel encased composite column by push-out test. Also nominal bond stress indicated by design standard such as Eurocode 4 is underestimated in small scale steel encased composite column. The other objective of this study is to investigate how does the number and space of shear connector influence the H-shaped steel encased composite column. The shear behavior of shear connectors is investigated by push-out test.

이 연구에서는 강판 매입형 합성기둥의 Push-out Test를 통해 강재와 콘크리트의 부착면적에 따른 영향을 알아보았다. 이로써 부착면적이 넓을수록 부착응력은 작아진다는 경향이 조사되었다. 또한 소규모 매입형 합성기둥의 경우에는 설계기준에서 제시하는 공칭부착 응력값이 과소하게 적용되는 것을 확인하였다. 다음으로 H형강 매입형 합성기둥의 Push-out Test를 통해 전단연결재의 수와 간격에 따른 영향을 알아보았다. 이로써 전단연결재의 전단거동을 파악할 수 있었다.

Keywords

References

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