Design and testing of reinforced concrete frames incorporating the slotted beam detail

Authors

  • J.D.R. Byrne University of Canterbury, Christchurch, New Zealand
  • D.K. Bull University of Canterbury, Christchurch, New Zealand

DOI:

https://doi.org/10.5459/bnzsee.45.2.77-83

Abstract

Shortcomings of modern seismic design in reinforced concrete have necessitated the development of new systems capable of addressing these issues. Able to be constructed using existing industry techniques, the slotted beam is one such practicable, economic solution. While earlier research by Au (2010) showed promising results for this system, it also highlighted issues with bond of beam reinforcement within interior joints and understanding of the joint shear mechanism. This paper explains and addresses these issues through a summary of the desktop and experimental research undertaken. The results were encouraging with 2 specimens successfully tested without bar slip and minimal beam elongation.

References

ACI Committee 352 (2002), Recommendations for design of beam-column connections in monolithic reinforced concrete structures, ACI Report 352R-02 (Draft).

ACI Committee 374 (2005), Acceptance criteria for moment frames based on structural testing and commentary: ACI Technical Document 374.1-05.

ACI Committee 408 (1992), State-of-the-art report on bond under cyclic loads, ACI Report 408.2R-92.

Au, E. (2010), The mechanics and design of a non-tearing floor connection using slotted reinforced concrete beams: Masters thesis; Department of Civil and Natural Resources Engineering, University of Canterbury, Christchurch.

Eligehausen, R., Popov, E.P., Bertero, V.V. (1983), Local bond stress-slip relationships of deformed bars under generalized excitations: Report UCB/EERC-83/23, Earthquake Engineering Research Centre, Unversity of California, Berkeley.

Federation internationale du beton (2000), Bond of reinforcement in concrete: State of the art report: CEB-FIB Bulletin 10, International Federation for Structural Concrete, Lausanne, Switzerland.

Fenwick, R.C., Megget, L.M. (1993), Elongation and load deflection characteristics of reinforced concrete members containing plastic hinges: Bulletin of the New Zealand National Society for Earthquake Engineering, Vol: 26, No: 1, Pg: 28-41. DOI: https://doi.org/10.5459/bnzsee.26.1.28-41

Hakuto, S., Park, R., Tanaka, H. (1999), Effect of deterioration of bond of beam bars passing through interior beam-column joints on flexural strength and ductility: ACI Structural Journal, Vol: 96, No: 5, Pg: 858-864. DOI: https://doi.org/10.14359/740

Lau, D.B.N. (2001), The influence of precast-prestressed flooring on the seismic performance of concrete perimeter frame buildings: Masters thesis; Department of Civil and Resources Engineering, University of Auckland, Auckland.

Lindsay, R. (2004), Experiments on the seismic performance of hollow-core floor systems in precast concrete buildings: Masters thesis; Department of Civil and Natural Resources Engineering, University of Canterbury, Christchurch.

Matthews, J.G. (2004), Hollowcore floor slab performance following a severe earthquake: PhD thesis; Department of Civil and Natural Resources Engineering, University of Canterbury, Christchurch.

Ogura, N., Bolander, J.E., Ichinose, T. (2008), Analysis of bond splitting failure of deformed bars within structural concrete: Engineering Structures, Vol: 30, No, Pg: 428-435. DOI: https://doi.org/10.1016/j.engstruct.2007.04.004

Paulay, T., Priestley, M.J.N. (1992), Seismic Design of Reinforced Concrete and Masonry Structures: New York; John Wiley & Sons Inc. DOI: https://doi.org/10.1002/9780470172841

Plizzari, G.A., Deldossi, M.A., Massimo, S. (1998), Transverse reinforcement effects on anchored deformed bars: Magazine of Concrete Research, Vol: 50, No: 2, Pg: 161-177. DOI: https://doi.org/10.1680/macr.1998.50.2.161

Tastani, S.P., Pantazopoulou, S.J. (2010), Direct tension pullout bond test: Experimental results: Journal of Structural Engineering, Vol: 136, No: 6, Pg: 731-743. DOI: https://doi.org/10.1061/(ASCE)ST.1943-541X.0000159

Viwathanatepa, S., Popov, E.P., Bertero, V.V. (1979), Effects of generalized loadings on bond of reinforcing bars embedded in confined concrete blocks: Report UCB/EERC-79/22, Earthquake Engineering Research Centre, University of California, Berkeley.

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Published

30-06-2012

How to Cite

Byrne, J., & Bull, D. (2012). Design and testing of reinforced concrete frames incorporating the slotted beam detail . Bulletin of the New Zealand Society for Earthquake Engineering, 45(2), 77–83. https://doi.org/10.5459/bnzsee.45.2.77-83

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