DOI QR코드

DOI QR Code

Mechanical splices of reinforcing bars subjected to bending moments

  • Sadegh Hashemi (Department of Civil Engineering, University of Semnan) ;
  • Ali Kheyroddin (Department of Civil Engineering, University of Semnan) ;
  • Ghasem Pachideh (Department of Civil Engineering, Sharif University of Technology)
  • 투고 : 2022.06.15
  • 심사 : 2024.04.08
  • 발행 : 2024.05.10

초록

Different methods have been proposed in the literature for splicing the reinforcing bars in the construction of concrete structures, which are alternatively used depending on design requirements. The most common approach is the lap splicing which is known as a cost-effective method although, its main disadvantages including congestion of bars at the lap zone and consequently, material wastage has motivated utilization of the other techniques such as mechanical splices (couplers). To better evaluate the performance of the couplers, 6 reinforced concrete (RC) beams whose difference is only the type and location of splices have been experimentally studied in this paper. Based on the results, the mechanical connection of the bars did not markedly affect the load-carrying capacity of the specimens. Moreover, it was observed that after applying the loads and failure of the specimens, none of the bars ruptured at the splice location and all couplers remained undamaged.

키워드

참고문헌

  1. ACI 318-14 (2014), Building Code Requirements for Structural Concrete, American Concrete institute, Michigan, United States.
  2. ACI 439.3R (2007), Types of Mechanical Splices for Reinforcing Bars, American Concrete Institute, Michigan, United States.
  3. ASTM A1034M (2005), Standard Test Methods for Testing Mechanical Splices for Steel Reinforcing Bars, ASTM International, Pennsylvania, United States.
  4. ASTM A370-11 (2011), Standard Test Methods and Definitions for Mechanical Testing of Steel Products, ASTM International, West Conshohocken, PA.
  5. ASTM C39/C39M-20 (2020), Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens, ASTM International, West Conshohocken, PA.
  6. ASTM C39/C39M-20 (2020), Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens, ASTM International, West Conshohocken, PA.
  7. Bai, A., Ingham, J. and Hunt, R. (2003), "Assessing the seismic performance of reinforcement coupler systems", Pacific Conference Earthquake Engineering.
  8. Bompa, D.V. and Elghazouli, A.Y. (2018), "Ductility of reinforced concrete members incorporating mechanical splices", 16th European Conference on Earthquake, Thessaloniki, June.
  9. Bompa, D.V. and Elghazouli, A.Y. (2019), "Inelastic cyclic behavior of RC members incorporating threaded reinforcement couplers", Eng. Struct., 180, 468-483. https://doi.org/10.1016/j.engstruct.2018.11.053.
  10. Coogler, K.L. (2007), "Investigation of the behavior of offset mechanical splices", Civil and Environmental Engineering, University of South Carolina.
  11. Haber, Z., Mackie, K. and Al-Jelawy, H. (2017), "Testing and analysis of precast columns with grouted sleeve connections and shifted plastic hinging", J. Bridge Eng., 22(10), 04017078. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001105.
  12. Hadianfard, M.A. and Kahkzad, A.L. (2016), "Inelastic buckling and post-buckling behavior of gusset plate connections", Steel Compos. Struct., 22(2), 411-427. https://doi.org/10.12989/scs.2016.22.2.411.
  13. Henin, E. and Morcous, G. (2014), "Non-proprietary bar splice sleeve for precast concrete construction", Eng. Struct., 83, 154-162. https://doi.org/10.1016/j.engstruct.2014.10.045.
  14. Hosseini, S.J.A., Rahman, A.B., Hwang, H.J., Hosseini, S.K. and Kang, S.M. (2022) "Bond behavior of spirally confined splices in grout", Constr. Build. Mater., 327, 127060. https://doi.org/10.1016/j.conbuildmat.2022.127060.
  15. Hua, L.J., Rahman, A.B. and Ibrahim, I.S. (2014), "Feasibility study of grouted splice connector under tensile load", Constr. Build. Mater., 50, 530-539. https://doi.org/10.1016/j.conbuildmat.2013.10.010.
  16. Hua, L.J., Rahman, A.B., Ibrahim, I.S. and Hamid, Z.A. (2012), "Behaviour of grouted pipe splice under incremental tensile load", Constr. Build. Mater., 33, 90-98. https://doi.org/10.1016/j.conbuildmat.2012.02.001.
  17. Hua, L.J., Rahman, A.B., Ibrahim, I.S. and Hamid, Z.A. (2016), "Tensile capacity of grouted splice sleeves", Eng. Struct., 111, 285-296. https://doi.org/10.1016/j.engstruct.2015.12.023.
  18. Kheyroddin, A. and Shirinsokhan, H. (2018), "Present an innovative experimental method for bar splices tensile members in reinforced concrete structures", Concrete Res., 10(4), 5-17. (in Persian)
  19. Lee, D., Yang, I.S., Kim, J., Moon, S.W., Thomas, H.K.K. and Lee, S.J. (2018), "Reinforced concrete column-foundation connections with mechanical splices", The 2018 Structures Conference, Incheon, Korea, August.
  20. Lu, Z., Huang, J., Li, Y., Dai, S., Peng, Z., Liu, X. and Zhang, M. (2019), "Mechanical behavior of grouted sleeve splice under uniaxial tensile loading", Eng. Struct., 186, 421-435. https://doi.org/10.1016/j.engstruct.2019.02.033.
  21. Mccabe, S. (2000), "The performance of mechanical splices", 12th World Conference on Earthquake Engineering (12WCEE), University of Kansas, USA.
  22. Mohammadzadeh, B., Esfahani, M. and Shooshtari, A. (2010), "Ductility analysis of lap-spliced reinforced concrete beams", J. Civil Eng., 22(1), 63-82.
  23. Navaratnarajah, V. (1983), "Splicing of reinforcement bars with epoxy joints", Int. J. Adhes. Adhesive, 3(2), 93-99. https://doi.org/10.1016/0143-7496(83)90023-4.
  24. Nguyen, D.P., Mutsuyoshi, H. and Ohno, T. (2013), "Experimental study on RC beams using mechanical splices with different quality and staggering length", Proceedings of the Thirteenth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-13), Sapporo, Japan, September.
  25. Ozkilic, Y.O. (2020), "A new replaceable fuse for moment resisting frames: Replaceable bolted reduced beam section connections", Steel Compos. Struct., 35(3), 353-370. https://doi.org/10.12989/scs.2020.35.3.353.
  26. Pachideh, G. and Gholhaki, M. (2018), "An experimental study on the effects of adding steel and polypropylene fibers to concrete on its resistance after different temperatures", J. Test. Eval., 47(2), 1606-1620. https://doi.org/10.1520/JTE20170145.
  27. Parks, J., Brown, D., Ameli, M.J. and Pantelides, Ch. (2016), "Seismic repair of severely damaged precast reinforced concrete bridge columns connected with grouted splice sleeves", ACI Struct. J., 113(3), 615. https://doi.org/10.14359/51688756.
  28. Reetz, J., Ramin, M.V. and Matamoros, A.B. (2004), "Performance of mechanical splices within the plastic hinge region of beams subject to cyclic loading", 13th World Conference on Earthquake Engineering, Vancouver, B.C. Canada, August.
  29. Shahria Alam, M., Youssef, M.A. and Nehdi, M. (2010), "Cyclic behavior of mechanically spliced shape memory alloy and steel bars", 9th U.S. National and 10th Canadian Conference on Earthquake Engineering, Toronto, Ontario, Canada, July.
  30. Tazarv, M. and Saiid Saiidi, M. (2016), "Seismic design of bridge columns incorporating mechanical bar splices in plastic hinge regions", Eng. Struct., 124, 507-520. https://doi.org/10.1016/j.engstruct.2016.06.041.
  31. Vatansever, C. and Kutsal, K. (2018), "Effect of bolted splice within the plastic hinge zone on beam-to-column connection behavior", Steel Compos. Struct., 28 (6), 767-778. https://doi.org/10.12989/scs.2018.28.6.767.
  32. Yan, Q., Chen, T. and Xie, Zh. (2018), "Seismic experimental study on a precast concrete beam-column connection with grout sleeves", Eng. Struct., 155, 330-344. https://doi.org/10.1016/j.engstruct.2017.09.027.
  33. Zhao, Ch., Zhang, Z., Wang, J. and Wang, B. (2019), "Numerical and theoretical analysis on the mechanical properties of improved CP-GFRP splice sleeve", Thin Wall. Struct., 137, 487-501. https://doi.org/10.1016/j.tws.2019.01.018.