Journal of Korean Society of Steel Construction (한국강구조학회 논문집)

Korean Society of Steel Construction (한국강구조학회)
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Push-out Test on Welded Angle Shear Connectors used in Composite Beams

합성보에 적용된 앵글 전단연결재의 Push-out 실험

  • Kim, Young Ju (Construction Engineering Center, DRB Holding Co., Ltd.) ;
  • Bae, Jae Hoon (Construction Engineering Center, DRB Holding Co., Ltd.) ;
  • Ahn, Tae Sang (Construction Engineering Center, DRB Holding Co., Ltd.) ;
  • Jang, Dong Woon (Construction Technology Development Dept., SsangYong E&C)
  • 김영주 (DRB동일, 건설기술연구소) ;
  • 배재훈 (DRB동일, 건설기술연구소) ;
  • 안태상 (DRB동일, 건설기술연구소) ;
  • 장동운 (쌍용건설, 건축기술부)
  • Received : 2014.02.04
  • Accepted : 2014.05.14
  • Published : 2014.06.27
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Abstract

Steel-concrete composite beam has been used for a considerable time in building construction. An essential component of a composite beam is the shear connection between the steel section and the concrete slabs, which is provided by mechanical shear connectors. A variety of shapes and devices have been in use as shear connectors. This study summarizes the results of an experimental investigation involving the testing of push-out specimens with angle shear connectors. All of 22 push-out specimens were designed to study the effect of a number of parameters on the shear capacity of angle shear connectors such as the height of the angle connector, the length of welding, and the pitch of angles. Based on the test results, a design equation was developed for predicting the shear strength of angle shear connectors.

강-콘크리트 합성보는 오랫동안 건물시공에 사용되어져 왔다. 합성보의 필수요소는 강재단면과 콘크리트 슬래브 사이의 전단접합이며, 주로 기계적 전단연결재가 사용되며 다양한 형상의 장치가 사용되어져 왔다. 본 연구는 앵글 전단연결재를 가진 push-out 실험체의 실험결과를 조사한 것이다. 앵글 전단연결재의 전단성능을 검토하기 위해서 모두 22개의 push-out 실험체를 설계하였으며, 앵글의 높이, 용접길이 및 앵글의 간격 등의 실험변수를 바탕으로 그 영향을 검토하였다. 실험결과를 바탕으로 앵글 전단연결재의 전단강도를 예측할 수 있는 설계식을 제안하였다.

Keywords

References

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