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Strengthening and rehabilitation of exterior RC beam–column joints using carbon-FRP jacketing

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Abstract

The scope of this study is to present the results of an experimental investigation of the behavior of shear deficient exterior beam–column joints retrofitted by carbon-fibre-reinforced polymers (CFRP’s). The joints have no transverse reinforcement so they called non-seismic (NS) joints. Four NS-grade of beam–column joints were tested under reversed cyclic loading and compared with one Seismic joint (S-grade specimen). The experimental program was divided into 3 separated phases including the damaging phase, the repairing phase and the retesting phase. In the third phase of the test, the repaired specimens were tested again until they were reached to final capacity. Results are compared in terms of strength, ductility, energy dissipation and stiffness degradation. A repair-ability performance level of the joints was also achieved through damage index assessment. It is shown that repairing the joints using CFRP laminates is not applicable in damage levels higher than the repair-ability performance level. In this case, the seismic behavior of damaged beam–column joints cannot be improved using CFRP laminates. Finally, it can be concluded that the joints tested in this study, will be repaired up to 1.5 % story drift ratio. Both Park and Ang’s and Ghobarah’s damage indices regarded to repair-ability of specimens are also suggested.

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References

  1. Moehle JP, Mahin SA (1991) Observations on the behavior of reinforced concrete buildings during earthquakes. In: Ghosh SK (ed) Earthquake-resistant concrete structures: inelastic response and design. ACI Publication SP-127

  2. ACI 352R-02 (2002) Recommendations for design of beam–column connections in monolithic reinforced concrete structures, Farmington Hills, Michigan

  3. Beres A et al (1992) Experimental results of repaired and retrofitted beam–column joint tests in lightly reinforced concrete frame buildings, vol 92. Technical Report NCEER

  4. Pantelides CP, Okahashi Y, Reaveley L (2008) Seismic rehabilitation of reinforced concrete frame interior beam–column joints with FRP composites. J Compos Constr 12(4):435–445

    Article  Google Scholar 

  5. Hadi MN, Tran TM (2014) Seismic rehabilitation of reinforced concrete beam–column joints by bonding with concrete covers and wrapping with FRP composites. Mater Struct 49:1–19

    Google Scholar 

  6. Ghobarah A, Aziz TS, Biddah A (1997) Rehabilitation of reinforced concrete frame connections using corrugated steel jacketing. ACI Struct J 94(3):283–294

    Google Scholar 

  7. Choudhuri D, Mander JB, Reinhorn AM (1992) Evaluation of seismic retrofit of reinforced concrete frame structures: Part I-Experimental performance of retrofitted subassemblages, vol 92. Technical Report NCEER

  8. Alcocer SM, Jirsa JO (1993) Strength of reinforced concrete frame connections rehabilitated by jacketing. ACI Struct J 90(3):249–261

    Google Scholar 

  9. Chaimahawan P, Pimanmas A (2009) Seismic retrofit of substandard beam–column joint by planar joint expansion. Mater Struct 42(4):443–459

    Article  Google Scholar 

  10. Bracci JM, Reinhorn AM, Mander JB (1992) Seismic resistance of reinforced concrete frame structures designed only for gravity loads: part I-design and properties of a one-third scale model structure, vol 27. Technical Report No. NCEER-92

  11. Karayannis C, Chalioris C, Sideris K (1998) Effectiveness of RC beam–column connection repair using epoxy resin injections. J Earthq Eng 2(02):217–240

    Google Scholar 

  12. Engindeniz M, Kahn LF, Zureick A-H (2005) Repair and strengthening of reinforced concrete beam–column joints: state of the art. ACI Struct J 102(2):187–197

    Google Scholar 

  13. Rizkalla S, Hassan T, Hassan N (2003) Design recommendations for the use of FRP for reinforcement and strengthening of concrete structures. Prog Struct Mat Eng 5(1):16–28

    Article  Google Scholar 

  14. Parvin A, Granata P (2000) Investigation on the effects of fiber composites at concrete joints. Compos Part B Eng 31(6):499–509

    Article  Google Scholar 

  15. Niroomandi A et al (2010) Seismic performance of ordinary RC frames retrofitted at joints by FRP sheets. Eng Struct 32(8):2326–2336

    Article  Google Scholar 

  16. Li J et al (2002) Behaviour of concrete beam–column connections reinforced with hybrid FRP sheet. Compos Struct 57(1):357–365

    Article  Google Scholar 

  17. Antonopoulos CP, Triantafillou TC (2002) Analysis of FRP-strengthened RC beam–column joints. J Compos Constr 6(1):41–51

    Article  Google Scholar 

  18. Li B, Kai Q (2010) Seismic behavior of reinforced concrete interior beam–wide column joints repaired using FRP. J Compos Constr 15(3):327–338

    Article  Google Scholar 

  19. Balsamo A et al (2005) Seismic behavior of a full-scale RC frame repaired using CFRP laminates. Eng Struct 27(5):769–780

    Article  Google Scholar 

  20. Iranian code of practice for seismic resistant design of buildings, standard no. 2800 (2005) Building and Housing Research Center (BHRC), Tehran, Iran

  21. CSA A23. 3 (2004) Design of concrete structures. Canadian Standards Association (CSA), Rexdale, Ontario

  22. FEMA356 (2000) Prestandard and commentary for the seismic rehabilitation of buildings: rehabilitation requirements. American Society of Civil Engineers, Washington

  23. ACI440.2R-08 (2008) Guide for the design and construction of externally bonded FRP system for strengthening concrete structures. In: ACI440.2R-08, Michigan, USA

  24. Gergely I et al (1998) Bridge pier retrofit using fiber-reinforced plastic composites. J Compos Constr 2(4):165–174

    Article  Google Scholar 

  25. Tsonos A, Stylianidis K (1999) Pre-seismic and post-seismic strengthening of reinforced concrete structural sub-assemblages using composite materials (FRP). In: Proceedings of the 13th Hellenic Concrete conference

  26. Gergely J, Pantelides CP, Reaveley LD (2000) Shear strengthening of RCT-joints using CFRP composites. J Compos Constr 4(2):56–64

    Article  Google Scholar 

  27. Ilki A, Bedirhanoglu I, Kumbasar N (2010) Behavior of FRP-retrofitted joints built with plain bars and low-strength concrete. J Compos Constr 15(3):312–326

    Article  Google Scholar 

  28. Chopra AK (2007) Dynamics of structures, theory and applications to earthquake engineering, 4th edn. Pearson Prentice Hall, Upper Saddle River

    Google Scholar 

  29. Park Y-J, Ang AH-S (1985) Mechanistic seismic damage model for reinforced concrete. J Struct Eng 111(4):722–739

    Article  Google Scholar 

  30. Ghobarah A, Abou-Elfath H, Biddah A (1999) Response-based damage assessment of structures. Earthq Eng Struct Dyn 28(1):79–104

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Civil Engineering, Faculty of Engineering, Ferdowsi University of Mashhad (FUM), P.O. Box 1111, Mashhad, 9177948944, Iran

    Ebrahim Zamani Beydokhti & Hashem Shariatmadar

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  1. Ebrahim Zamani Beydokhti
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  2. Hashem Shariatmadar
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Correspondence to Hashem Shariatmadar.

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Zamani Beydokhti, E., Shariatmadar, H. Strengthening and rehabilitation of exterior RC beam–column joints using carbon-FRP jacketing. Mater Struct 49, 5067–5083 (2016). https://doi.org/10.1617/s11527-016-0844-2

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  • DOI: https://doi.org/10.1617/s11527-016-0844-2

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