Computers and Concrete

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Seismic performances of RC columns reinforced with screw ribbed reinforcements connected by mechanical splice

  • Lee, Se-Jung (SEJIN Structure Construction Maintenance Co.) ;
  • Lee, Deuck Hang (Department of Architectural Engineering, University of Seoul) ;
  • Kim, Kang Su (Department of Architectural Engineering, University of Seoul) ;
  • Oh, Jae-Yuel (Department of Architectural Engineering, University of Seoul) ;
  • Park, Min-Kook (Department of Architectural Engineering, University of Seoul) ;
  • Yang, Il-Seung (Department of Architectural Engineering, University of Dongshin)
  • Received : 2012.02.26
  • Accepted : 2013.01.17
  • Published : 2013.08.01
⟨ Previous Next ⟩

Abstract

Various types of reinforcement splicing methods have been developed and implemented in reinforced concrete construction projects for achieving the continuity of reinforcements. Due to the complicated reinforcement arrangements and the difficulties in securing bar spacing, the traditional lap splicing method, which has been widely used in reinforced concrete constructions, often shows low constructability and difficulties in quality control. Also, lap spliced regions are likely to be over-reinforced, which may not be desirable in seismic design. On the other hand, mechanical splicing methods can offer simple and clear arrangements of reinforcement. In order to utilize the couplers for the ribbed-deformed bars, however, additional screw processing at the ends of reinforcing bars is typically required, which often lead to performance degradations of reinforced concrete members due to the lack of workmanship in screw processing or in adjusting the length of reinforcing bars. On the contrary, the use of screw-ribbed reinforcements can easily solve these issues on the mechanical splicing methods, because it does not require the screw process on the bar. In this study, the mechanical coupler suitable for the screw-ribbed reinforcements has been developed, in which any gap between the reinforcements and sleeve device can be removed by grouting high-flow inorganic mortar. This study presents the uniaxial tension tests on the screw-ribbed reinforcement with the mechanical sleeve devices and the cyclic loading tests on RC columns with the developed coupler. The test results show that the mechanical sleeve connection developed in this study has an excellent splicing performance, and that it is applicable to reinforced concrete columns with a proper confinement by hoop reinforcement.

Keywords

References

  1. ACI Committee 318 (2011), Building Code Requirements for Structural Concrete and Commentary (ACI 318M-11), American Concrete Institute, Farmington Hills, 503.
  2. ACI committee 439 (1991),"Mechanical connection of reinforcing bars", ACI Struct. J., 88(2), 222-237.
  3. ACI Innovation Task Group 1 and Collaborators (2001), Acceptance Criteria for Moment Frames Based on Structural Testing (ACI T1.1-01), American Concrete Institute, Farmington Hills, 10.
  4. Bechtoula, H., Kono, S. and Watanabe, F. (2009),"Seismic performance of high strength reinforced concrete columns", Struct. Eng. Mech., 31(6), 697-716. https://doi.org/10.12989/sem.2009.31.6.697
  5. Belleri, A. and Riva, P. (2012),"Seismic performance and retrofit of precast concrete grouted sleeve connections", PCI J., 57(1), 97-09. https://doi.org/10.15554/pcij.01012012.97.109
  6. Bentz, E.C. and Collins, M.P. (2001),"Response 2000 ver. 1.1 user manual," 148 http://www.ecf.utoronto.ca/-bentz/r2k.htm.
  7. Cagley, J.R. and Apple, R. (1998),"Comparing costs - butt splices versus lap splices", Concrete Int., 20(7), 55-56.
  8. CSA (2004), CAN3-A23.3-04: Design of concrete structures, Can Stand. Assoc., Rexdale, Ontario, 213.
  9. Cho, J.Y. and Pincheira, J.A. (2006),"Inelastic analysis of reinforced concrete columns with short lap splices subjected to reversed cyclic loads", ACI Struct. J., 103(2), 280-290.
  10. Chowdhury, S.R. and Orakcal, K. (2012),"An analytical model for teinforced concrete columns with lap splices", Eng. Struct., 43(1), 180-193. https://doi.org/10.1016/j.engstruct.2012.05.019
  11. Chun, S.C., Lee, S.H. and Oh, B.H. (2012),"Simplified design equation of lap splice length in Compression", Int. J. Conc. Struct. Mat., 4(1), 63-68.
  12. Einea, A., Yamane, T. and Tadros, M.K. (1995),"Grouted-filled pipe splices for precast concrete construction", PCI J., 40(1), 82-93.
  13. ERICO Concrete Reinforcement Products (2006), Mechanical vs. Lap Splices in Reinforced Concrete Construction, http://www.erico.com/public/library/concrete/lt0983.pdf.
  14. Harajli, M.H. (1994),"Development/splice strength of reinforcing bars embedded in plain and fiber reinforced concrete", ACI Struct. J., 91(5), 511-520.
  15. Hulshizer, A.J., Ucciferro, J.J. and Gray, G.E. (1994),"Mechanical reinforcement couplings meet demand of strength and constructability", Concrete Int., 16(12), 47-52.
  16. International Code Council (2012), International Building Code, 690.
  17. KCI-M-07 (2007), Design Specifications for Concrete Structures, Korea Concrete Institute, 523.
  18. Kim, H.K. (2008),"Structural performance of steel pipe splice for SD500 high-strength reinforcing bar under cyclic loading", Archit. Res., 10(1), 13-23.
  19. Kim, T.H., Kim, B.S., Chung, Y.S. and Shin, H.M. (2006),"Seismic performance assessment of reinforced concrete bridge piers with lap splices", Eng. Struct., 28(6), 935-945. https://doi.org/10.1016/j.engstruct.2005.10.020
  20. Ling, J.H., Abd Rahman, A.B. and Mirasa, A.K. (2008a),"Performance of CS-sleeve under direct tensile load: Part I?failure modes", Malaysian J. Civ. Eng., 20(1), 89-106.
  21. Ling, J.H., Abd Rahman, A.B. and Mirasa, A.K. (2008b),"Performance of CS-sleeve under direct tensile load: Part II?structural performance", Malaysian J. Civ. Eng., 20(1), 107-127.
  22. Ling, J.H., Rahman, A.B.A., Ibrahim, I.S. and Hamid, Z.A. (2012),"Behaviour of grouted pipe splice under incremental tensile load", Constr. Bldg. Mat., 33(1), 90-98. https://doi.org/10.1016/j.conbuildmat.2012.02.001
  23. Lowes, L.N., Lehman, D.E., Birely, A.C., Kuchma, D.A., Marley, K.P. and Hart, C.R. (2012),"Earthquake response of slender planar concrete walls with modern detailing", Eng. Struct., 43(1), 31-47. https://doi.org/10.1016/j.engstruct.2012.04.040
  24. Metelli, G., Beschi, C. and Riva, P. (2012),"Cyclic Behaviour of a Column to foundation Joint for Concrete Precast Structures", Euro. J. Env. Civ. Eng., 15(9), 1297-1318.
  25. Wong, P. and Vecchio, F.J. (2002), VecTor2 and Form Works User's Manual, Publication No. 2002-02, Department of Civil Engineering Publication, University of Toronto, 213.

Cited by

  1. P-M interaction curve for reinforced concrete columns exposed to elevated temperature vol.18, pp.4, 2016, https://doi.org/10.12989/cac.2016.18.4.479
  2. Unified equivalent frame method for flat plate slab structures under combined gravity and lateral loads - Part 1: derivation vol.7, pp.5, 2014, https://doi.org/10.12989/eas.2014.7.5.719
  3. Seismic performances of centrifugally-formed hollow-core precast columns with multi-interlocking spirals vol.20, pp.6, 2016, https://doi.org/10.12989/scs.2016.20.6.1259
  4. Incorporation preference for rubber-steel bearing isolation in retrofitting existing multi storied building vol.16, pp.4, 2015, https://doi.org/10.12989/cac.2015.16.4.503
  5. Experimental Study on Reinforced Concrete Column Incased in Prefabricated Permanent Thin-Walled Steel Form vol.2016, 2016, https://doi.org/10.1155/2016/3806549
  6. Unified equivalent frame method for flat plate slab structures under combined gravity and lateral loads - Part 2: verification vol.7, pp.5, 2014, https://doi.org/10.12989/eas.2014.7.5.735
  7. P-M interaction curve for reinforced concrete columns exposed to elevated temperature vol.19, pp.5, 2013, https://doi.org/10.12989/cac.2017.19.5.537
  8. Simplified P-M interaction curve model for reinforced concrete columns exposed to standard fire vol.19, pp.5, 2013, https://doi.org/10.12989/cac.2017.19.5.545
  9. Steel-concrete composite beam-column connections utilizing prefabricated permanent steel form vol.46, pp.None, 2013, https://doi.org/10.1016/j.jobe.2021.103836