DOI QR코드

DOI QR Code

Model for the evaluation of the beam-column joint ultimate strength -a more simplified version

  • Tsonos, Alexandros-Dimitrios G. (Department of Civil Engineering, Aristotle University of Thessaloniki)
  • 투고 : 2018.12.19
  • 심사 : 2018.12.22
  • 발행 : 2019.02.25

초록

In this study, a well-established model and a new simplified version of it, that help avoid collapses in reinforced concrete structures during strong earthquakes, are presented and discussed. Using this model, the initial formation of plastic hinges and the final concentration of the damages only in beams are accurately assured. The model also assures that the columns and the beam-column joints can remain intact. This model can be applied for the design of modern R/C structures, as well as for the design of strengthening schemes of old R/C structures by the use of reinforced concrete jackets. The model can also predict the form of earthquake damages in old structures but also earthquake damages in the modern structures.

키워드

참고문헌

  1. ACI-ASCE Committee 352 (2002), Recommendations for Design of Beam-Column Connections in Monolithic Reinforced Concrete Structures (ACI 352R-02), Reported by Joint ACI-ASCE Committee 352, American Concrete Institute, Farmington Hills, MI, USA.
  2. Attaalla, S.A. and Agbabian. M.S. (2004), "Performance of interior beam-column joints cast from high strength concrete under seismic loads", J. Adv. Struct. Eng., 7(2), 147-1571. https://doi.org/10.1260/1369433041211093
  3. CEB (1993), CEB-FIP Modes Code 1990, Bulletin d' Information CEB, 213/214, Lausanne.
  4. Ehsani, M.R. and Wight, J.Κ. (1985), "Effect of transverse beams and slab on behavior of reinforced concrete beam-to-column connections", ACI J., 82(2), 188-195.
  5. EN 1992-1-1 Eurocode 2 (2004), Design of Concrete Structures, Part 1-1: General Rules and Rules for Buildings, 224.
  6. EN 1998-1 Eurocode 8 (2004), Design of Structures for Earthquake Resistance. Part 1: General Rules, Seismic Actions and Rules for Buildings, Stage 51, 229.
  7. Fujii, S. and Morita, S. (1991), "Comparison between interior and exterior RC beam-column joint behavior", Design of Beani-Column Joints for Seismic Resistance, SP-123, J. O. Jirsa, eel., American Concrete Institute, Farmington Hills, MI, USA.
  8. Golias, E., Karayannis, C.G. and Karabinis, A.I. (2018), "Tests of external beam-column joint with x-type reinforcement under cyclic loading", Proceedings of the 16th European Conference on Earthquake Engineering, Thessaloniki, Greece, June.
  9. Kaku, T. and Asakusa, H. (1991), "Ductility estimation of exterior beam-column subassemblages in reinforced concrete frames," Design of Beam-Column Joints for Seismic Resistance, SP-123, De. J.O. Jirsa, American Concrete Institute, Farmington Hills. Mich..
  10. Kalogeropoulos, G. and Tsonos, A.D. (2014), "Effectiveness of r/c jacketing of substandard r/c columns with short lap splices", Struct. Monit. Maint., 1(3), 273-92. https://doi.org/10.12989/SMM.2014.1.3.273
  11. Kalogeropoulos, G., Tsonos, A.D., Konstandinidis, D. and Tsetines, S. (2016), "Pre-earthquake and post-earthquake retrofitting of poorly detailed exterior RC beam-to-column joints", Eng. Struct., 109, 1-15. https://doi.org/10.1016/j.engstruct.2015.11.009
  12. Karayannis, C. (2015), "Mechanics of external RC beam-column joints with rectangular spiral shear reinforcement: experimental verification", Meccanica, 50, 311-322. https://doi.org/10.1007/s11012-014-9953-6
  13. Karayannis, C. and Sirkelis, G. (2008), "Effectiveness of R/C beam-column connection repair using epoxy resin injections", Earthq. Eng. Struct. Dyn., 37, 769-790. https://doi.org/10.1002/eqe.785
  14. Karayannis, C., Chalioris, C. and Sideris, K. (1998), "Effectiveness of R/C beam-column connection repair using epoxy resin injections", J. Earthq. Eng., 2(2), 217-240. https://doi.org/10.1080/13632469809350320
  15. Karayannis, C.G., Favvata, M.J. and Kakaletsis, D. (2011), "Seismic behavior of infilled and pilotis RC frame structures with beam-column joint degradation effect", Eng. Struct., 33, 2821-2831. https://doi.org/10.1016/j.engstruct.2011.06.006
  16. Karayannis, C.G., Golias, E. and Chalioris, C.E. (2018), "Local FRP-retrofitting of exterior reinforced concrete beam-column joints under cyclic lateral loading", Proceedings of the 16th European Conference on Earthquake Engineering, Thessaloniki, Greece, June.
  17. Karayannis, C.G., Sirkelis, G.M. and Chalioris, C.E. (2003), "Repair of reinforced concrete T- J beam - column joints using epoxy resin injections", Proceedings of the 1st International Conference on Concrete Repair, St-Malo, France, 2, 793- 800.
  18. Leon, R.T.M. (1990), "Shear strength and hysteretic behavior of interior beam-column joints", ACI Struct. J., 87, 3-11.
  19. Meinheit, D.F. and Jirsa, J.O. (1982), "Shear strength of R/C beam-column connections", Proc., ASCE, 107(ST11), 2227-2244.
  20. New Greek Code for the Design of Reinforced Concrete Structures (1995), Athens, Greece. (in Greek)
  21. New Greek Earthquake Resistant Code (1995), Athens, Greece. (in Greek)
  22. Park, R. (2000), "A summary of results of simulated seismic load tests on reinforced concrete beam-column joints, beams and columns with substandard reinforcing details", J. Earthq. Eng., 6(2), 147-174. https://doi.org/10.1080/13632460209350413
  23. Park, R. and Paulay, T. (1975), Reinforced Concrete Structures, John Wiley Publications, New York, NY, USA.
  24. Paulay, T. and Park, R. (1984), "Joints of reinforced concrete frames designed for earthquake resistance", Research Report No. 84-9, Department of Civil Engineering, University of Canterbury, Christchurch, New Zealand.
  25. Paulay, T. and Priestley, M.J.N. (1992), Seismic Design of Reinforced Concrete and Masonry Buildings, John Wiley & Sons, New York, NY, USA.
  26. Scott, B.D., Park, R. and Priestley, M.J.N. (1982), "Stress-strain behavior of concrete confined by overlapping hoops at low and high strain rates", ACI J., 79(1), 13-27.
  27. Sharma, A., Eligehausen, R. and Reddy, G.R. (2011), "A new model to simulate joint shear behavior of poorly detailed beam-column connections in RC structures under seismic loads, Part I: Exterior joints", Eng. Struct., 33, 1034-1051. https://doi.org/10.1016/j.engstruct.2010.12.026
  28. Sugano, S. and Fujimura, M. (1980), "Aseismic strengthening of existing r/c buildings", Proceedings of the 7th WCEE, Istanbul, Turkey.
  29. Tsonos A.G. (2007), "Cyclic load behavior of reinforced concrete beam-column subassemblages of modern structures", ACI Struct. J., 104(4), 1-11.
  30. Tsonos, A.D., Kalogeropoulos G., Iakovidis, P. and Konstantinidis, D. (2017), "Seismic retrofitting of pre-1970 RC bridge columns using innovative jackets", Int. J. Struct. Eng., 8(2), 133-147. https://doi.org/10.1504/IJSTRUCTE.2017.084631
  31. Tsonos, A.G. (1996), "Towards a new approach in the design of R/C beam-column joints", Technika Chronika, Sci. J. Tech. Cham. Greece, 16(1-2), 69-82.
  32. Tsonos, A.G. (1997), "Shear strength of ductile reinforced concrete beam-to-column connections for seismic resistant structures", J. Eur. Assoc. Earthq. Eng., 2, 54-64.
  33. Tsonos, A.G. (1999), "Lateral load response of strengthened reinforced concrete beam-to-column joints", ACI Struct. J. Proc., 96(1), 46-56.
  34. Tsonos, A.G. (2001a), "Seismic retrofit of R/C beam-to-column joints using local three-sided jackets", J. Eur. Earthq. Eng., 1, 48-64.
  35. Tsonos, A.G. (2001b), "Seismic rehabilitation of reinforced concrete joints by the removal and replacement technique", J. Eur. Earthq. Eng., 3, 29-43.
  36. Tsonos, A.G. (2002), "Seismic repair of exterior R/C beam-to-column joints using two-sided and three-sided jackets", Struct. Eng. Mech., 13(1), 17-34. https://doi.org/10.12989/sem.2002.13.1.017
  37. Tsonos, A.G. (2006), "Cyclic load behaviour of reinforced concrete beam-column subassemblages designed according to modern codes", J. Eur. Earthq. Eng., 3, 3-21.
  38. Tsonos, A.G. (2007), "Cyclic load behaviour of reinforced concrete beam-column subassemblages of modern structures", ACI Struct. J., 194(4), 468-478.
  39. Tsonos, A.G. (2008), "Effectiveness of CFRP - jackets and RC - jackets in post-earthquake and pre-earthquake retrofitting of beam-column subassemblages", Eng. Struct., 30, 777-793. https://doi.org/10.1016/j.engstruct.2007.05.008
  40. Tsonos, A.G. (2009), "Ultra-high performance fiber reinforced concrete: an innovative solution for strengthening old R/C structures and for improving the FRP strengthening method", Keynote Speaker, Materials Characterisation Computational Methods and Experiments IV, The New Forest, UK.
  41. Tsonos, A.G. (2010), "Performance enhancement of R/C building columns and beam-column joints through shotcrete jacketing", Eng. Struct., 32, 726-740. https://doi.org/10.1016/j.engstruct.2009.12.001
  42. Tsonos, A.G. (2017), "Model for the evaluation of the beam-column joint ultimate strength-Substitution of equation ({\chi}+$\psi$)^5+10{$\psi$}-10{\chi}=1 with a line equation", Presentation during the 3rd Meeting of CEN/TC250/SC08/ Working Group 5, "Concrete", Paris.
  43. Uzumeri, S.M. (1977), "Strength and ductility of cast-in-place beam-column joints," Reinforced Concrete Structures in Seismic Zones, SP-53, American Concrete Institute, Farmington Hills, MI, 293-350.

피인용 문헌

  1. Strengthening of deficient RC joints with diagonally placed external C-FRP ropes vol.20, pp.1, 2019, https://doi.org/10.12989/eas.2021.20.1.123