Structural Engineering and Mechanics

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Effect of Ferro-cement retrofit in the stiffened infill RC frame

  • Arulselvan, Suyamburaja (Department of Civil Engineering, Coimbatore Institute of Technology) ;
  • Sathiaseelan, P. (Department of Civil Engineering, PPG Institute of Technology)
  • Received : 2016.06.20
  • Accepted : 2016.11.22
  • Published : 2017.02.25
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Abstract

This paper presents an experimental investigation on the contribution of RCC strip in the in-filled RC frames. In this research, two frames were tested to study the behavior of retrofitted RC frame under cyclic loading. In the two frame, one was three bay four storey R.C frame with central bay brick infill with RCC strip in-between brick layers and the other was retrofitted frame with same stiffened brick work. Effective rehabilitation is required some times to strengthened the RC frames. Ferrocement concrete strengthening was used to retrofit the frame after the frame was partially collapsed. The main effects of the frames were investigated in terms of displacement, stiffness, ductility and energy dissipation capacity. Diagonal cracks in the infill bays were entirely eliminated by introducing two monolithic RCC strips. Thus more stability of the frame was obtained by providing RCC strips in the infill bays. Load carrying capacity of the frame was increased by enlarging the section in the retrofitted area.

Keywords

References

  1. Abdel-Hafez, L.M., Abouelezz, A.E.Y. and Elzefeary, F.F. (2015), "Behavior of masonry strengthened infilled reinforced concrete frames under in-plane load", HBRC J., 11(2), 213-223. https://doi.org/10.1016/j.hbrcj.2014.06.005
  2. Al-Chaar, G., Issa, M. and Sweeney, S. (2002), "Behavior of masonry-infilled nonductile reinforced concrete frames", J. Struct. Eng., 128(8), 1055-1063. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:8(1055)
  3. Anil, O. and Altin, S. (2007), "An experimental study on reinforced concrete partially infilled frames", Eng. Struct., 29(3), 449-460. https://doi.org/10.1016/j.engstruct.2006.05.011
  4. Asteris, P.G. (2003), "Lateral stiffness of brick masonry infilled plane frames", J. Struct. Eng., 129(8), 1071-1079. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:8(1071)
  5. Calvi, G.M. (2000), "The behaviour of frames infilled with nonreinforced and MURFOR reinforced clay brick masonry walls", Universita Degli Studi Di Pavia dipartimento Di Meccanica Strutturale Laboratorio Materiali e Strutture, Via Abbiategrasso, Italy.
  6. Cavaleri, L. and Papia, M. (2003), "A new dynamic identification technique: application to the evaluation of the equivalent strut for infilled frames", Eng. Struct., 25(7), 889-901. https://doi.org/10.1016/S0141-0296(03)00023-3
  7. Das, D. and Murty, C.V.R. (2004), "Brick masonry infills in seismic design of RC framed buildings: Part 1-cost implications", The Indian Concrete Journal, 78(7), 31-38.
  8. Della Corte, G., Fiorino, L. and Mazzolani, F. (2008), "Lateralloading tests on a real RC building including masonry infill panels with and without FRP strengthening", J. Mater. Civ. Eng., 20(6), 419-431. https://doi.org/10.1061/(ASCE)0899-1561(2008)20:6(419)
  9. Dubey S.K. (1996), "Ultimate strength of infilled frames under horizontal load", J. Struct. Eng., 23, 129-135.
  10. Ganesan, N., Indira, P.V. and Thadathil, S.P. (2011), "Effect of ferrocement wrapping system on strength and behavior of RC frames under reversed lateral cyclic loading", Exper. Techniq., 35(4), 23-28. https://doi.org/10.1111/j.1747-1567.2010.00617.x
  11. Kakaletsis, D.J. and Karayannis, C.G. (2008), "Influence of masonry strength and openings on infilled R/C frames under cycling loading", J. Earthq. Eng., 12(2), 197-221. https://doi.org/10.1080/13632460701299138
  12. Kamanli, M., Korkmaz, H.H., Unal, A., Balik, F.S., Bahadir, F., and Cogurcu, M. (2015), (2015), "Seismic improvement of infilled nonductile RC frames with external mesh reinforcement and plaster composite", Earthq. Struct., 8, 3761-778.
  13. Kara, M.E. and Altin, S. (2006), "Behavior of reinforced concrete frames with reinforced concrete partial infills", ACI Struct. J., 103(5), 701-709.
  14. Korkmaz, S.Z., Kamanli, M., Korkmaz, H.H., Donduren, M.S. and Cogurcu, M.T. (2010), "Experimental study on the behaviour of nonductile infilled RC frames strengthened with external mesh reinforcement and plaster composite", Nat. Hazard. Earthq. Syst. Sci., 10, 2305-2316. https://doi.org/10.5194/nhess-10-2305-2010
  15. Madan, A., Gupta, A. and Hashmi, A.K. (2015), "Pushover analysis of masonry ifilled reinforced concrete frames for performance based design for near field earthquakes", Int. J. Civil Environ. Struct. Constr. Arch. Eng., 9(8), 1097-1103.
  16. Mondal, G. and Jain, S.K. (2008) "Lateral stiffness of masonry infilled reinforced concrete (RC) frames with central opening", Earthq. Spectra, 24(3), 701-723. https://doi.org/10.1193/1.2942376
  17. Nateghi-Elahi, F. and Dehghani, A. (2008), "Analytical and numerical study of RC frames with URM infilled retrofitted by CFRP", The 14 the World Conference on Earthquake Engineering, Beijing, October.
  18. Perumal Pillai, E.B. and Govindan, P. (1994), "Structural response of brick infill in RC frames", Int. J. Struct., 14(2), 83-102.
  19. Schwarz, S., Hanaor, A. and Yankelevsky, D.Z. (2015), "Experimental response of reinforced concrete frames with AAC masonry infill walls to in-plane cyclic loading", Struct., 3, 306-319. https://doi.org/10.1016/j.istruc.2015.06.005
  20. Zovkic, J., Sigmund, V. and Guljas, I. (2013), "Cyclic testing of a single bay reinforced concrete frames with various types of masonry infill", Earthq. Eng. Struct. Dyn., 42(8), 1131-1149. https://doi.org/10.1002/eqe.2263