Computers and Concrete

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Investigation on the seismic performance of T-shaped column joints

  • Chen, Changhong (School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University) ;
  • Gong, He (School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University) ;
  • Yao, Yao (School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University) ;
  • Huang, Ying (School of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Keer, Leon M. (Civil and Environmental Engineering, Northwestern University)
  • Received : 2017.05.20
  • Accepted : 2018.01.13
  • Published : 2018.03.25
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Abstract

More and more special-shaped structural systems have been widely used in various industrial and civil buildings in order to satisfy the new structural system and the increasing demand for architectural beauty. With the popularity of the special-shaped structure system, its seismic performance and damage form have also attracted extensive attention. In the current research, an experimental analysis of six groups of (2/3 scale) T-shaped column joints was conducted to investigate the seismic performance of T-shaped column joints. Effects of the beam cross section, transverse stirrup ratio and axial compression ratio on bearing capacity and energy dissipation capacity of column joints were obtained. The crack pattern of T-shaped column joints under low cyclic load was presented and showed a reversed "K" mode. According to the crack configurations, a tensile-shear failure model to determine the shear bearing capacity and crack propagation mechanisms is developed.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China, China Scholarship Council, Shaanxi National Science Foundation of China, Northwestern Polytechnical University, Central Universities

References

  1. ACI 318R-08 (2014), Building Code Requirements for Structural Concrete and Commentary, American Concrete Institute, Farmington Hills, MI, USA
  2. Bakir, P. and Boduroglu, H. (2002), "A new design equation for predicting the joint shear strength of monotonically loaded exterior beam-column joints", Eng. Struct., 24(8), 1105-17. https://doi.org/10.1016/S0141-0296(02)00038-X
  3. Barbhuiya, S. and Choudhury, A.M. (2015), "A study on the size effect of RC beam-column connections under cyclic loading", Eng. Struct., 95, 1-7. https://doi.org/10.1016/j.engstruct.2015.03.052
  4. Behnam, H., Kuang, J.S. and Huang, R.Y.C. (2017), "Exterior RC wide beam-column connections: Effect of beam width ratio on seismic behavior", Eng. Struct., 147, 27-44. https://doi.org/10.1016/j.engstruct.2017.05.044
  5. Bossio, A., Fabbrocino, F. and Lignola, G.P. (2015), "Simplified model for strengthening design of beam-column internal joints in reinforced concrete frames", Polym. Basel, 7(9), 1732-1754.
  6. Cao, W.L., W, G.Y. and Wei, W.X. (1995), "Behavior of Tshaped column under different directional cyclic loading", Earthq. Eng. Eng. Vib., 15(4), 76-84.
  7. Chen, C.H., Zhu, Y.F., Yao, Y. and Huang, Y. (2016), "Progressive collapse analysis of steel frame structure based on the energy principle", Steel Compos. Struct., 21(3), 553-71. https://doi.org/10.12989/scs.2016.21.3.553
  8. Chen, C.H., Zhu, Y.F., Yao, Y., Huang, Y. and Long, X. (2016), "An evaluation method to predict progressive collapse resistance of steel frame structures", J. Constr. Steel Res., 122, 238-50. https://doi.org/10.1016/j.jcsr.2016.03.024
  9. Dundar, C. and Sahin, B. (1993), "Arbitrarily shaped reinforced concrete members subject to biaxial bending and axial load", Comput. Struct., 49(4), 643-62. https://doi.org/10.1016/0045-7949(93)90069-P
  10. Euro Code 8 (2004), Design of Structures for Earthquake Resistance. Part 1: General Rules, Seismic Actions and Rules for Buildings, London, UK.
  11. Ghobarah, A. and Said, A. (2002), "Shear strengthening of beamcolumn joints", Eng. Struct., 24(7), 881-8. https://doi.org/10.1016/S0141-0296(02)00026-3
  12. Gosain, N.K., Brown, R.H. and Jersa, J. (1977), "Shear requirements for load reversals on RC members", J. Struct. Div., 103(7), 1461-1476.
  13. Hanson, N.W. and Conner, H.W. (1967), "Seismic resistance of reinforced concrete beam-column joints", J. Struct. Div., 93(5), 533-60.
  14. Hwang, S.J. and Lee, H.J. (2000), "Analytical model for predicting shear strengths of interior reinforced concrete beamcolumn joints for seismic resistance", ACI Struct. J., 97(1), 35-44.
  15. Hwang, S.J., Lee, H.J., Liao, T.F., Wang, K.C. and Tsai, H.H. (2005), "Role of hoops on shear strength of reinforced concrete beam-column joints", ACI Struct. J., 102(3), 445-53.
  16. Jeon, J.S., Shafieezadeh, A. and DesRoches, R. (2014), "Statistical models for shear strength of RC beam-column joints using machine-learning techniques", Earthq. Eng. Struct. D., 43(14), 2075-95. https://doi.org/10.1002/eqe.2437
  17. Kim, J. and LaFave, J.M. (2007), "Key influence parameters for the joint shear behaviour of reinforced concrete (RC) beamcolumn connections", Eng. Struct., 29(10), 2523-39. https://doi.org/10.1016/j.engstruct.2006.12.012
  18. Kim, J. and LaFave, J.M. (2009), "Joint shear behavior of reinforced concrete beam-column connections subjected to seismic lateral loading", Newmark Structural Engineering Laboratory. University of Illinois at Urbana-Champaign.
  19. Kitayama, K., Otani, S. and Aoyama, H. (1988), "Earthquake resistant design criteria for reinforced concrete interior beamcolumn joints", Tran. JCI., 10, 281-8.
  20. LaFave, J.M. and Kim, J.H. (2011), "Joint shear behavior prediction for RC beam-column connections", Int. J. Concr. Struct. M., 5(1), 57-64. https://doi.org/10.4334/IJCSM.2011.5.1.057
  21. Lee, J.Y., Kim, J.Y. and Oh, G.J. (2009), "Strength deterioration of reinforced concrete beam-column joints subjected to cyclic loading", Eng. Struct., 31(9), 2070-85. https://doi.org/10.1016/j.engstruct.2009.03.009
  22. Li, S. F., Li, Q. N. and Zhang, H. (2018), "Experimental study of a fabricated confined concrete beam-to-column connection with end-plates", Constr. Build. Mater., 158, 208-216. https://doi.org/10.1016/j.conbuildmat.2017.10.025
  23. Masi, A., Santarsiero, G., Lignola, G.P. and Verderame, G.M. (2013), "Study of the seismic behavior of external RC beamcolumn joints through experimental tests and numerical simulations", Eng. Struct., 52, 207-19. https://doi.org/10.1016/j.engstruct.2013.02.023
  24. Mitra, N. and Lowes, L.N. (2007), "Evaluation, calibration, and verification of a reinforced concrete beam-column joint model", J. Struct. Eng., 133(1), 105-20. https://doi.org/10.1061/(ASCE)0733-9445(2007)133:1(105)
  25. NZS 3101(2006), Concrete Structures Standard. Part 1: The Design of Concrete Structures, Standard Association of New Zealand (SANZ), Wellington, New Zealand.
  26. Park, S. and Mosalam, K.M. (2012), "Parameters for shear strength prediction of exterior beam-column joints without transverse reinforcement", Eng. Struct., 36, 198-209. https://doi.org/10.1016/j.engstruct.2011.11.017
  27. Paulay, T., Park, R. and Preistley, M. (1978), "Reinforced concrete beam-column joints under seismic actions", ACI J., 75(11), 585-93.
  28. Pham, T.P. and Li, B. (2015), "Seismic performance assessment of L-shaped reinforced concrete columns", ACI Struct. J., 112(6), 667.
  29. Ricci, P., Maria, D.R.M., Verderame, G.M. and Manfredi, G. (2016), "Experimental tests of unreinforced exterior beamcolumn joints with plain bars", Eng. Struct., 118, 178-94. https://doi.org/10.1016/j.engstruct.2016.03.033
  30. Scott, R. (1992), "The effects of detailing on RC beam/column connection behaviour", Struct. Eng., 70(18), 318-24.
  31. Shiohara, H. (2001), "New model for shear failure of RC interior beam-column connections", J. Struct. Eng., 127(2), 152-60. https://doi.org/10.1061/(ASCE)0733-9445(2001)127:2(152)
  32. Tsonos, A.G. (2007), "Cyclic load behavior of reinforced concrete beam-column subassemblages of modern structures", ACI Struct. J., 104(4), 468.
  33. Unal, M. and Burak, B. (2012), "Joint shear strength prediction for reinforced concrete beam-to-column connections", Struct. Eng. Mech., 41(3), 421-40. https://doi.org/10.12989/sem.2012.41.3.421
  34. Wang, G.L., Dai, J.G. and Teng, J. (2012), "Shear strength model for RC beam-column joints under seismic loading", Eng. Struct., 40, 350-60. https://doi.org/10.1016/j.engstruct.2012.02.038
  35. Wong, H. and Kuang, J.S. (2008), "Effects of beam-column depth ratio on joint seismic behaviour", P I Civil Eng. Struct. B., 161(2), 91-101. https://doi.org/10.1680/stbu.2008.161.2.91

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