Advances in concrete construction

  • 제6권5호
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  • Pages.509-525
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  • 2018
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  • 2287-5301(pISSN)
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  • 2287-531X(eISSN)
테크노프레스 (Techno-Press)
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Experimental evaluation of splicing of longitudinal bars with forging welding in flexural reinforced concrete beams

  • Sharbatdar, Mohammad K. (Civil Engineering Faculty, Semnan University) ;
  • Jafari, Omid Mohammadi (Civil Engineering Faculty, Semnan University) ;
  • Karimi, Mohammad S. (Civil Engineering Faculty, Semnan University)
  • 투고 : 2017.07.13
  • 심사 : 2018.09.29
  • 발행 : 2018.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper the application of forging process as benefit technique in Reinforced Concrete (RC) beam bars and comparison to lap splices was experimentally investigated with four concrete beam specimens with same dimensions and reinforcement details. The reference specimen was with no splices and the other three beams were with different splices (100% forging in the middle, 50% forging, and 100% lap splices in the middle). Beams were tested with the four points load system. Experimental test results indicated that using forging process as new bar splicing method can have high effects on increasing ductility and energy dissipation of concrete structures. It also proved that this method increased the flexural rigidity, energy absorption, and ductility of the RC beams. And also this research results showed that the flexural capacity and ductility of the beam with 50% forging were respectively increased up to 10% and 75% comparing to that of reference specimen, but the energy absorption of this beams was decreased up to 27%. The ductility of beam with 50% forging was increased up to 25% comparing the ductility of beam with 100% forging.

키워드

참고문헌

  1. ACI 318-2014 (2014), American Concrete Institute.
  2. Bagheri, K. and Fasihi, H. (2013), "Optimization of RC building", Iran Annual Concrete Conference. (in Persian)
  3. Camille, A. and Nasr, I. (2006), "An experimental study of welded splices of reinforcing bars", Build. Environ., 41(10), 1394-1405. https://doi.org/10.1016/j.buildenv.2005.05.025
  4. Coogler, K. (2006), "Investigation of the behavior of offset mechanical splices", Doctoral Dissertation, University of Pittsburgh.
  5. EL-Hacha, R., Elagroudy, H. and Rizkalla, S. (2004), "Proposed modification to the ACI 318-02 Code equation on bond strength for steel bars", 5th Structure Specialty Conference of the Canadian Society for Engineering, Saskatoon, Saskatchewan, Canada.
  6. Henin, E. and Morcous, G. (2014), "Non-proprietary bar splice sleeve for precast concrete construction", Eng. Struct., 83, 154-162.
  7. Hosseini, J., Baharuddin, A., Mohd Hanim, R. and Saim, A. (2015), "Bond behavior of spirally confined splice of deformed bars in grout", Constr. Build. Mater., 80, 180-194. https://doi.org/10.1016/j.conbuildmat.2014.12.097
  8. Hua, L., Baharuddin, A. and Rahman, I. (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
  9. Iran Building National Regulations (2013), 9-Code, Design and Construction RC Building, 4th Version, Road and Urbanization Ministry. (in Persian)
  10. Ling, J., Baharuddin, A., Izni syahrizal Abrahim, R. and Abdul hamid, Z. (2012), "Behavior of grouted pipe splice under incremental tensile load", Constr. Build. Mater., 33, 90-98. https://doi.org/10.1016/j.conbuildmat.2012.02.001
  11. Mccabe, S. (2000), "The performance of mechanical splices", 12WCEE, 12th World Conference on Earthquake Engineering.
  12. Mohamadzade, B., Esfahani, M.R. and Shoushtari, A. (2010), "Investigation of ductility of spliced RC beams", Ferdousi Civil Eng. J., 22(1). (in Persian).
  13. Moradi Shashaghi, T., Faramazzade, V. and Jahfarnezhad, H. (2012), "Evaluation of performance of mechanical splices of tensile bars, steel filled concrete tubes in RC members", Iran Annual Concrete Conference. (in Persian)
  14. Navaratnarajah, V. (1983), "Splicing of reinforcement bars with epoxy joints", NT. J. Adhes. Adhes., 3(2), 93-99. https://doi.org/10.1016/0143-7496(83)90023-4
  15. Nguyen, D., Mutsuyoshi, R. and Ohno, T. (), "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).
  16. Park, S., Choib, S., Stubbs, N., Bolton, R., Price, A. and Sikorsky, C. (2008), "A modal parameter based technique to inspect welded reinforcement splices", Eng. Struct., 28(3), 453-465. https://doi.org/10.1016/j.engstruct.2005.09.002
  17. Reetz, R., Ramin, V. and Matamoros, A. (2013), "Performance of reinforcement coupler systems", Pacific Conference Earthquake Engineering.
  18. Sayadi, A., Baharruddin, A., Bin Jumaat, M.Z. and Johnson, R.U. (2014), "The relationship between interlocking mechanism and bond strength in elastic and inelastic segment of splice sleeve", Constr. Build. Mater., 55, 227-237. https://doi.org/10.1016/j.conbuildmat.2014.01.020
  19. Tahouni, Sh. (1996), Design of RC Building, Tehran University Press. (in Persian)
  20. Turk, K. and Yildirim, M.S. (2003), "Bond strength of reinforcement in splices in beams", Struct. Eng. Mech, 16(4), 469-478. https://doi.org/10.12989/sem.2003.16.4.469
  21. UBC97 (1997), Design Code.

피인용 문헌

  1. An experimental comparison of RC beam-column joints incorporating different splice methods in the beam vol.34, pp.None, 2021, https://doi.org/10.1016/j.istruc.2021.08.101