Structural Engineering and Mechanics

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Retrofitting reinforced concrete beams by bolting steel plates to their sides -Part 1: Behaviour and experiments

  • Ahmed, Marfique (Department of Civil and Environmental Engineering, The University of Adelaide) ;
  • Oehlers, Deric John (Department of Civil and Environmental Engineering, The University of Adelaide) ;
  • Bradford, Mark Andrew (Department of Structural Engineering, University of New South Wales)
  • Published : 2000.09.25
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Abstract

A procedure has been developed for bolting steel plates to the sides of existing reinforced concrete beams which can be used to increase the shear strength of beams, increase the flexural strength of beams with enhanced ductility or with only a small loss of ductility, and increase the stiffness of beams in order to reduce deflections and crack widths. It will be shown in this paper, through a qualitative analysis and through the results of testing eight large scale beams, that standard rigid plastic analysis techniques which are commonly used in the design of reinforced-concrete, steel, and composite steel and concrete beams cannot be used directly to design composite bolted-plated reinforced-concrete beams. In the companion paper, quantitative procedures will be used to adapt the standard rigid plastic analysis techniques for this relatively new form of retrofitting.

Keywords

References

  1. Ahmed, M. (1996), "Strengthening of reinforced concrete beams by bolting steel plates to their sides", Master of Engineering Science Thesis, The University of Adelaide, Australia, October.
  2. Newmark, N.M., Siess, C.P. and Viest, I.M. (1952), "Studies of slab and beam highway bridges, Part III - Small scale tests of shear connectors and composite T-beams", Bulletin 396, University of Illinios, Urbana, Illinois.
  3. Oehlers, D.J. and Bradford, M.A. (1995), Composite Steel and Concrete Structural Members: Fundamental Behaviour, Pergamon Press, Oxtord, England, November.
  4. Oehlers, D.J., Nguyen, N.T., Ahmed, M. and Bradford, M.A. (1997), "Transverse and longitudinal partial interaction in composite bolted side-plated reinforced-concrete beams", Structural Engineering and Alechanics, An international Journal, 5(5), Sept., 553-564. https://doi.org/10.12989/sem.1997.5.5.553
  5. Oehlers, D.J. and Bradford, M.A. (1999), Elementary Behaviour of Composite Steel and Concrete Structural Members. Butterworth Heinemann, Oxford, England.
  6. Oehlers, D.J., Ahmed, M., Bradford, M.A and Nguyen, N.T. (2000), "Retrofitting reinforced concrete beams by bolting steel plates to their sides. Part 2: Transverse interaction and rigid plastic design", Structural Engineering and Mechanics, 10(3).
  7. Smith, S.T., Bradford, M.A. and Oehlers, D.J. (1999a), "Local buckling of side-plated reinforced concrete beams. Part 1: Theoretical study", ASCE, Journal of Structural Engineering, June, 622-634.
  8. Smith, S.T., Bradlord, M.A. and Oehlers, DJ. (1997b), "Local buckling side-plated reinforced concrete beams. Part 2: Experimental study", ASCE, Journal of Structural Engineering, June, 635-643.

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