Composites Research

The Korean Society for Composite Materials (한국복합재료학회)
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Interface Horizontal Shear Strength between UHPC Deck and Concrete Girder with Stirrups

스터럽을 이용한 UHPC 바닥판과 콘크리트 거더 연결부의 수평전단강도

  • 유동민 (한국도로교통협회 기술국) ;
  • 황훈희 (한국도로교통협회 기술국) ;
  • 김성태 (한국건설기술연구원 SOC성능연구소 인프라구조연구실) ;
  • 박성용 (한국건설기술연구원 SOC성능연구소 인프라구조연구실)
  • Received : 2012.08.21
  • Accepted : 2012.10.26
  • Published : 2012.10.31
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Abstract

The purpose of this experimental research was to evaluate interface shear requirements between UHPC deck and concrete girder with stirrups according to Korean Highway Bridge Design Code and AASHTO LRFD Bridge Design Specifications. The push-out tests are performed to analize the composite behavior in interface of connection. The test results were compared to the values of interface horizontal shear strength predicted by current codes. As the results, it was observed that the test results provided more conservative estimate for horizontal shear strength than the values by current codes equation.

이 연구에서는 초고성능콘크리트 교량 바닥판과 콘크리트 거더 사이의 연결부의 전단에 대하여 도로교설계기준과 AASHTO LRFD 교량설계기준에서 요구되는 규정을 평가하였다. 2면 전단실험을 통해 연결부 접촉면에서의 합성 거동을 분석하였고, 실험결과와 현행 기준에 의해 계산된 수평전단강도를 비교하였다. 그 결과, 실험결과에 의한 수평전단강도가 현행 기준식에 의한 값보다 더 보수적인 예측치를 보이는 것으로 나타났다.

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References

  1. Lee, J.W., Joh, C.B., and Kim, B.S., "Horizontal Shear Strength between Ultra High Performance Concrete and Normal Concrete," Korea Concrete Institute, 2011, pp. 31-32.
  2. Loov, R.E. and A.K. Patnaik, "Horizontal Shear Strength of Composite Concrete Beams with a Rough Interface," PCI Journal, Vol 39, No. 1, 1994, pp. 48-67. https://doi.org/10.15554/pcij.01011994.48.69
  3. Kahn, L.F. and Mitchell, A.D., "Shear Friction Tests with High-Strength Concrete," ACI Structural Journal, Vol. 99, No. 1, pp. 98-103.
  4. Yoo, D.M., Hwang, H.H., Kim, S.T., and Park, S.Y., "An Experimental Study on the shear connection for UHPC Deck Bridge," Journal of The Korean Society for Composite Materials, Vol. 24, No. 5, 2011, pp. 29-33. https://doi.org/10.7234/kscm.2011.24.5.029
  5. Minister of Land, Transport and Maritime Affairs, 도로 교설계기준, Korea Road & Transportation Association, Seoul, 2010, pp. 4-84.
  6. AASHTO, AASHTO LRFD Bridge Design Specifications, 6th ed., American Association of State Highway and Transprotation Officials, Washington, DC, 2012. pp. 5-84.

Cited by

  1. Experimental Study on Structural Behavior of Interfaces of Double Composite Girder Using the 80 MPa Concrete vol.17, pp.4, 2016, https://doi.org/10.5762/KAIS.2016.17.4.400