DOI QR코드

DOI QR Code

Application of the compressive-force path concept in the design of reinforced concrete indeterminate structures: A pilot study

  • Seraj, Salek M. (Bangladesh University of Engineering and Technology) ;
  • Kotsovos, Michael D. (National Technical University of Athens) ;
  • Pavlovic, Milija N. (Imperial College of Science, Technology & Medicine, University of London)
  • 발행 : 1995.09.25

초록

In the past, physical models have been proposed, in compliance with the concept of the compressive-force path, for the realistic design of various statically determinate structural concrete members. The present work extends these models so as to encompass indeterminate RC structural forms. Pilot tests conducted on continuous beams and fixed-ended portal frames have revealed that designing such members to present-day concepts may lead to brittle types of failure. On the other hand, similar members designed on the basis of the proposed physical models attained very ductile failures. It appears that, unlike current design approaches, the compressive-force path concept is capable of identifying those areas where failure is most likely to be triggered, and ensures better load redistribution, thus improving ductility. The beneficial effect of proper detailing at the point of contraflexure in an indeterminate RC member is to be noted.

키워드

참고문헌

  1. ACI 318 (1989), Building code requirements for reinforced concrete, American Concrete Institute, Detroit.
  2. BS 8110 (1985), Structural use of concrete. Part 1-Code of practice for design and construction, British Standards Institution, London.
  3. Kotsovos, M.D. (1988), "Compressive force path concept : basis for reinforced concrete ultimate limit design", ACI Structural Journal, 85(1), 68-75.
  4. Kotsovos, M.D. and Lefas, I.D. (1990), "Behaviour of reinforced concrete beams designed in compliance with the concept of compressive force path", ACI Structural Journal, 87(2), 127-139.
  5. Lefas, I.D., Kotsovos, M.D. and Ambraseys, N.N. (1990), "Behaviour of reinforced concrete structural walls: strength, deformation characteristics and failure mechanisms", ACI Structural Journal, 87(1), 23-31.
  6. Morsch, E. (1902), Concrete steel construction, English translation by E. P. Goodrich. (McGraw-Hill, New York, 1909) (Translation from 3rd edition of Der Eisenbetonbau, 1st edition, 1902).
  7. Ritter, W. (1899), Die Bauweise Hennebique, Schweizerische Bauzeitung, 33(7), 59-61.
  8. Seraj, S.M. (1991), Reinforced and prestressed concrete members designed in accordance to the compres-sive-force path concept and fundamental material properties, PhD Thesis. Imperial College, University of London, .
  9. Seraj, S.M., Kotsovos, M.D. and Pavlovic, M.N. (1992a), "Three-dimensional finite-element modelling of normal- and high-strength reinforced concrete members, with special reference to T-beams", Computers & Structures, 44(4), 699-716. https://doi.org/10.1016/0045-7949(92)90454-8
  10. Seraj, S.M., Kotsovos, M.D. and Pavlovic, M.N. (1992b), "Nonlinear finite-element analysis of prestressed concrete members", Structures & Buildings, Proc. Institute of Civil Engineers, 94(4), 403-418. https://doi.org/10.1680/istbu.1992.21504
  11. Seraj, S.M., Kotsovos, M.D. and Pavlovic, M.N. (1993a), "Compressive-force path and behaviour of prestressed concrete beams", Materials and Structures, Research and Testing RILEM, 26(156), 74-89. https://doi.org/10.1007/BF02472854
  12. Seraj, S.M., Kotsovos, M.D. and Pavlovic, M.N. (1993b), "Experimental study of the compressive-force path concept in prestressed concrete beams", Engineering Structures, 15(6), 439-451. https://doi.org/10.1016/0141-0296(93)90062-9
  13. Seraj, S.M., Kotsovos, M.D. and Pavlovic, M.N. (1995), "Behaviour of high-strength mix reinforced concrete beams," Archives of Civil Engineering, Proc. Polish Academy of Sciences, 41(1), 31-67.

피인용 문헌

  1. Shear behaviour of non-prismatic steel reinforced concrete beams vol.71, 2014, https://doi.org/10.1016/j.engstruct.2014.04.016
  2. Evaluation of safety formats for non-linear finite element analyses of statically indeterminate concrete structures subjected to different load paths vol.17, pp.1, 2016, https://doi.org/10.1002/suco.201500059