Earthquakes and Structures

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Performance of hybrid beam-column joint cast with high strength concrete

  • Al-Osta, M.A. (Department of Civil Engineering, King Fahd University of Petroleum & Minerals (KFUPM)) ;
  • Al-Khatib, A.M. (Department of Civil Engineering, King Fahd University of Petroleum & Minerals (KFUPM)) ;
  • Baluch, M.H. (Department of Civil Engineering, King Fahd University of Petroleum & Minerals (KFUPM)) ;
  • Azad, A.K. (Department of Civil Engineering, King Fahd University of Petroleum & Minerals (KFUPM)) ;
  • Rahman, M.K. (Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals (KFUPM))
  • Received : 2016.10.03
  • Accepted : 2017.05.26
  • Published : 2017.06.25
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Abstract

This paper presents investigation into the behavior of beam-column joints, with the joint region concrete being replaced by steel fiber reinforced concrete (SFRC) and by ultra-high performance concrete (UHPC). A total of ten beam-column joint specimens (BCJ) were tested experimentally to failure under monotonic and cyclic loading, with the beam section being subjected to flexural loading and the column to combined flexural and axial loading. The joint region essentially transferred shear and axial stresses as received from the column. Steel fiber reinforced concrete (SFRC) and ultra-high performance concrete (UHPC) were used as an innovative construction and/or strengthening scheme for some of the BCJ specimens. The reinforced concrete specimens were reinforced with longitudinal steel rebar, 18 mm, and some specimens were reinforced with an additional two ties in the joint region. The results showed that using SFRC and UHPC as a replacement concrete for the BCJ improved the joint shear strength and the load carrying capacity of the hybrid specimens. The mode of failure was also converted from a non-desirable joint shear failure to a preferred beam flexural failure. The effect of the ties in the SFRC and UHPC joint regions could not be observed due to the beam flexural failure. Several models were used in estimating the joint shear strength for different BCJ specimens. The results showed that the existing models yielded wide-ranging values. A new concept to take into account the influence of column axial load on the shear strength of beam-column joints is also presented, which demonstrates that the recommended values for concrete tensile strength for determination of joint shear strength need to be amended for joints subject to moderate to high axial loads. Furthermore, finite element model (FEM) simulation to predict the behaviour of the hybrid BCJ specimens was also carried out in an ABAQUS environment. The result of the FEM modelling showed good agreement with experimental results.

Keywords

Acknowledgement

Grant : Study of Steel Fiber Reinforced Concrete Joints for Beam-Columns Under Cyclic Loading

Supported by : KFUPM

References

  1. Alsayed, S., Al-Salloum, Y., Almusallam, T. and Siddiqui, N. (2010), "Seismic response of FRP-Upgraded exterior RC beamcolumn joints", J. Compos. Constr., 14(2), 195-208. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000067
  2. Barros, J., Santos, S., Lourento, L. and Goncalves, D. (2008), "Flexural behaviour of steel fibre reinforced self-compacting concrete laminar structures", ISISE-Conference.
  3. Birtel, V. and Mark, P. (2006), "Parameterised finite element modelling of RC beam shear failure", In 2006 ABAQUS Users, Conference, 95-108.
  4. Braga, F., Gigliotti, R. and Laterza, M. (2009), "R/C existing structures with smooth reinforcing bars: Experimental behaviour of beam-column joints subject to cyclic lateral loads", Open Constr. Build. Technol. J., 3(1), 52-67. https://doi.org/10.2174/1874836800903010052
  5. Chidambaram, R. and Agarwal, P. (2015), "Seismic behavior of hybrid fiber reinforced cementitious composite beam-column joints", Mater. Des., 86, 771-781. https://doi.org/10.1016/j.matdes.2015.07.164
  6. Danish A., Baluch, M., K.Rahman, M. and Ilki, A. (2013), "Finite element modeling of seismic performance of low strength concrete exterior beam-column joints", Seismic Evaluat. Rehabilit. Struct., Geotech., Geol. Earthq. Eng., 26, 221-242.
  7. El-Amoury, T. and Ghobarah, A. (2002), "Seismic rehabilitation of beam-column joint using GFRP sheets", Eng. Struct., 24(11), 1397-1407. https://doi.org/10.1016/S0141-0296(02)00081-0
  8. El-Dieb, A. (2009), "Mechanical, durability and microstructural characteristics of ultra-high-strength self-compacting concrete incorporating steel fibers", Mater. Des., 30(10), 4286-4292. https://doi.org/10.1016/j.matdes.2009.04.024
  9. Ganesan, N., Indira, P. and Abraham, R. (2007), "Steel fibre reinforced high performance concrete beam-column joints subjected to cyclic loading", ISET J. Earthq. Technol, 44(3-4), 445-456.
  10. Ha, G. and Shin, J. (2013), "Evaluation of seismic performance of high strength reinforced concrete exterior beam-column joints using high ductile fibre-reinforced mortar", J. Korea Concrete Inst., 25(4), 419-428. https://doi.org/10.4334/JKCI.2013.25.4.419
  11. Ha, J.H., Ha, G.J. and Shin, J.H. (2015), "Improvement and seismic performance evaluation of RC exterior beam-column joints using recycled coarse aggregate with hybrid fiber", J. Korea Inst. Struct. Mainten. Inspect., 19(2), 160-169. https://doi.org/10.11112/jksmi.2015.19.2.160
  12. Ilki, A., Bedirhanoglu, I. and Kumbasar, N. (2011), "Behavior of FRP-retrofitted joints built with plain bars and low-strength concrete", J. Compos. Constr., 15(3), 312-326. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000156
  13. Jiuru, T., Chaobin, H., Kaijian, Y. and Yongcheng, Y. (1992), "Seismic behavior and shear strength of framed joint using steel-fiber reinforced concrete", J. Struct. Eng., 118(2), 341-358. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:2(341)
  14. Karayannis, C., Chalioris, C.E. and Sirkelis, G. (2008), "Local retrofit of exterior RC beam-column joints using thin RC jackets-An experimental study", Earthq. Eng. Struct. D., 37(5), 727-746. https://doi.org/10.1002/eqe.783
  15. Keerthana, J.D. and Reddy, C.S. (2014), "Experimental investigation on hybrid steel fiber reinforced concrete beamcolumn joints under cyclic loading", Int. J. Res. Sci. Technol., 1(11), 6-11.
  16. Lee, J. and Fenves, G. (1998), "Plastic-damage model for cyclic loading of concrete structures", J. Eng. Mech., 124(8), 892-900. https://doi.org/10.1061/(ASCE)0733-9399(1998)124:8(892)
  17. Lubliner, J., Oliver, J., Oller, S. and Onate, E. (1989), "A plasticdamage model for concrete", Int. J. Solid. Struct., 25(3), 299-326. https://doi.org/10.1016/0020-7683(89)90050-4
  18. Oinam, R., Choudhury, M. and Laskar, I. (2013), "Experimental study on beam-column joint with fibres under cyclic loading", IOSR J. Eng., 3(7), 13-23. https://doi.org/10.9790/3021-03721323
  19. Pampanin, S., Calvi, G.M. and Moratti, M. (2002), "Seismic behavior of RC beam-column joints designed for gravity only", 12th European Conference on Earthquake Engineering.
  20. Pantelides, C., Clyde, C. and Reaveley, L. (2002), "Rehabilitation of R/C building joints with FRP composites", 12th World Conference on Earthquake Engineering, Auckland, New Zealand.
  21. Park, P. (1997), "A static force-based procedure for the seismic assessment of existing reinforced concrete moment resisting frames", Bull. NZ. Nat'l Soc. Earthq. Eng., 30(3), 213-226.
  22. Perumal, P. and Thanukumari, B. (2011), "Behaviour of M60 concrete using fibre cocktail in exterior beam-column joint under reversed cyclic loading", Asian J. Civ. Eng. (Building and Housing), 12(2), 255-265.
  23. Prem, P., Bharatkumar, B. and Iyer, N. (2012), "Mechanical properties of ultra high performance concrete", World Acad. Sci., Eng. Technol., 6(8), 676-685.
  24. Rohm, C., Novak, B., Sasmal, S., Karusala, R. and Srinivas, V. (2012), "Behaviour of fibre reinforced beam-column subassemblages under reversed cyclic loading", Constr. Build. Mater., 36, 319-329. https://doi.org/10.1016/j.conbuildmat.2012.04.114
  25. Sarsam, K. and Al-Azzawi, Z. (2010), "Shear capacity of highstrength fiber reinforced concrete beam-column joints", Eng. Tech. J., 28(6), 1253.
  26. Sasmal, S., Ramanjaneyulu, K., Novak, B., Srinivas, V., Kumar, K., Korkowskib, K., Roehmb, C., Lakshmanana, N. and Iyera, N. (2011), "Seismic retrofitting of nonductile beam-column subassemblage using FRP wrapping and steel plate jacketing", Constr. Build. Mater., 25(1), 175-182. https://doi.org/10.1016/j.conbuildmat.2010.06.041
  27. Shende, A., Pande, A. and Pathan, M. (2012), "Experimental study on steel fiber reinforced concrete for M-40 grade", Int. Refer. J. Eng. Sci., 1(1), 43-48.
  28. Song, P. and Hwang, S. (2004), "Mechanical properties of highstrength steel fiber-reinforced concrete", Constr. Build. Mater., 18(9), 669-673. https://doi.org/10.1016/j.conbuildmat.2004.04.027
  29. Wang, Y. and Lee, M. (2007), "Ultra-high strength steel fiber reinforced concrete for strengthening of RC frames", J. Marine Sci. Technol., 15(3), 210-218.
  30. Tsonos, A., Tegos, I. and Penelis, G. (1993), "Seismic resistance of type 2 exterior beam-column joints reinforced with inclined bars", ACI Struct. J., 89(1), 3-12.

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