Journal of the Korea Concrete Institute (콘크리트학회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Evaluation of Design Method and Shear Transfer Capacity on the Horizontal Interface of PC Composite Beams

PC 합성보의 수평접합면 전단력 전달성능 평가 및 설계법 분석

  • Received : 2012.09.07
  • Accepted : 2012.12.03
  • Published : 2013.02.28
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Abstract

The purpose of this study is to evaluate the horizontal shear strength on the interface between PC and cast-in-place concrete for PC composite beams. Six specimens were tested to examine the structural performance of the horizontal interface with different surface condition and stirrup detailing. Except for SF-291B specimen failed in flexural compression, strengths and deformation capacities of five specimens were determined by horizontal shear failure. Horizontal shear strengths by composite horizontal shear or shear friction in current codes could be used to predict the horizontal shear capacity of the interface for specimens. Also detailing for stirrup by PCI design provision could be used to accomplish the composite action in the interface.

이 연구에서는 합성보의 수평 접합면에 대한 수평전단력 저항성능을 평가하기 위하여 6개의 접합면 전단성능 실험체를 대상으로 접합면의 표면상태, 전단철근의 보강량과 상세 등의 구조변수에 대한 수평전단강도를 평가하였다. 휨압축파괴를 나타낸 SF-291B를 제외한 모든 실험체는 실험계획에서 의도한 대로 접합면의 수평전단력에 의한 전단파괴를 나타내었다. 설계기준식의 수평전단력 전달 또는 전단마찰 설계법으로 산정한 접합면 전단강도는 실험체의 수평전단 파괴를 초래한 접합면의 수평전단내력을 양호한 수준으로 평가하는 것으로 나타났으며, PCI 설계기준에서 제시한 전단철근의 배근상세와 정착길이는 접합면에서 요구되는 수평전단성능을 확보할 수 있다고 판단된다.

Keywords

References

  1. Korea Concrete Institute, Concrete Design Code and Commentary, Kimoondang Publishing Company, Seoul, Korea, 2003, 405 pp.
  2. ACI Committee 318, Building Code Requirements for Structural Concrete and Commentary (ACI 318M-05), American Concrete Institute, MI, USA, 2005, 436 pp.
  3. PCI Industry Handbook Committee, PCI Design Handbook- Precast Prestressed Concrete, 6th Edition, Precast/Prestressed Concrete Institute, Chicago, IL, USA, 2005, 736 pp.
  4. PCA, Notes on Building Code Requirements for Structural Concrete, IL, USA, 2005, 1008 pp.
  5. Mattock, A. H., "Anchorage of Stirrups in a Thin Castin- Place Topping," PCI Journal, Vol. 32, No. 6, 1987, pp. 70-85. https://doi.org/10.15554/pcij.11011987.70.85
  6. Kahn, L. F. and Slapkus A., "Interface Shear in High Strength Composite T-Beams," PCI Journal, Vol. 49, No. 4, 2004, pp. 102-110. https://doi.org/10.15554/pcij.07012004.102.110
  7. Loov, R. E. and Patnaik, A. K., "Horizontal Shear Strength of Composite Concrete Beams with a Rough Interface," PCI Journal, Vol. 39, No. 1, 1994, pp. 48-69. https://doi.org/10.15554/pcij.01011994.48.69
  8. Saemann, J. C. and Washa, G. W., "Horizontal Shear Connections between Precast Beams and Cast-in-Place Slabs," Journal of ACI, Vol. 61, No. 11, 1964, pp. 1383-1409.
  9. Shaikh, A. F., "Proposed Revisions to Shear-Friction Provisions," PCI Journal, Vol. 23, No. 2, 1978, pp. 12-21.

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