DOI QR코드

DOI QR Code

Energy absorption of reinforced concrete deep beams strengthened with CFRP sheet

  • Received : 2013.10.25
  • Accepted : 2013.12.28
  • Published : 2014.05.25

Abstract

The function of carbon fibre reinforced polymer (CFRP) reinforcement in increasing the ductility of reinforced concrete (RC) deep beam is important in such shear-sensitive RC member. This paper aims to investigate the effect of CFRP-strengthening on the energy absorption of RC deep beams. Six ordinary RC deep beams and six CFRP-strengthened RC deep beams with shear span to the effective depth ratio of 0.75, 1.00, 1.25, 1.50, 1.75, and 2.00 were tested till failure in this research. An empirical relationship was established to obtain the energy absorption of CFRP-strengthened RC deep beams. The shear span to the effective depth ratio and growth of energy absorption of CFRP-strengthened deep beam were the significant factors to establish this relationship.

Keywords

References

  1. ACI (2011), Building Code Requirements for Structural Concrete and Commentary, Section 10.7 and R10.7. 317-318.
  2. Al-Saidy, A.H. and Al-Jabri, K.S. (2011), "Effect of damaged concrete cover on the behavior of corroded concrete beams repaired with CFRP sheets", Compos. Struct., 93(7), 1775-1786. https://doi.org/10.1016/j.compstruct.2011.01.011
  3. Altin, S., Anil, O., Topta, T. and Kara, M.E. (2011), "Retrofitting of shear damaged RC beams using CFRP strips", Steel Compos. Struct., Int. J., 11(3), 207-223. https://doi.org/10.12989/scs.2011.11.3.207
  4. Anastasiadis, A., Mosoarca, M. and Gioncu, V. (2012), "Prediction of available rotation capacity and ductility of wide-flange beams: Part 2: Applications", J. Construct. Steel Res., 68(1), 176-191. https://doi.org/10.1016/j.jcsr.2011.08.007
  5. Barrera, A.C., Bonet, J.L. Bonet, Romero, M.L. and Fernandez, M.A. (2012), "Ductility of slender reinforced concrete columns under monotonic flexure and constant axial load", Eng. Struct., 40, 398-412. https://doi.org/10.1016/j.engstruct.2012.03.012
  6. Barros, J.A.O., Taheri, M., Salehian, H. and Mendes, P.J.D. (2012), "A design model for fibre reinforced concrete beams pre-stressed with steel and FRP bars", Compos. Struct., 94(8), 2494-2512. https://doi.org/10.1016/j.compstruct.2012.03.007
  7. Belakhdar, K., Tounsi, A., Adda Bedia, E.A. and Redha, Y. (2011), "Effect of tapered-end shape of FRP sheetson stress concentration in strengthened beams", Steel Compos. Struct., Int. J., 11(6), 435-454. https://doi.org/10.12989/scs.2011.11.6.435
  8. Cree, D., Chowdhury, E.U., Green, M.F., Bisby, L.A. and Benichou, N. (2012), "Performance in fire of FRP-strengthened and insulated reinforced concrete columns", Fire Safety J., 54, 86-95. https://doi.org/10.1016/j.firesaf.2012.08.006
  9. Egilmez, O.O. and Yormaz, D. (2011), "Cyclic testing of steel I-beams reinforced with GFRP", Steel Compos. Struct., Int. J., 11(2), 93-114. https://doi.org/10.12989/scs.2011.11.2.093
  10. Godat, A., Labossiere, P., Neale, K.W. and Chaallal, O. (2012), "Behavior of RC members strengthened in shear with EB FRP: Assessment of models and FE simulation approaches", Comput. Struct., 92-93, 269-282. https://doi.org/10.1016/j.compstruc.2011.10.018
  11. Guenaneche, B., Tounsi, A. and Adda Bedia, E.A. (2014), "Effect of shear deformation on interfacial stress analysis in plated beams under arbitrary loading", Int. J. Adhesion Adhesives, 48, 1-13. https://doi.org/10.1016/j.ijadhadh.2013.09.016
  12. He, R., Grelle, S., Sneed, L.H. and Belarbi, A. (2013), "Rapid repair of a severely damaged RC column having fractured bars using externally bonded CFRP", Compos. Struct., 101, 225-242. https://doi.org/10.1016/j.compstruct.2013.02.012
  13. Issa, M.S., Metwally, I.M. and Elzeiny, S.M. (2011), "Influence of fibers on flexural behavior and ductility of concrete beams reinforced with GFRP rebars", Eng. Struct., 33(5), 1754-1763. https://doi.org/10.1016/j.engstruct.2011.02.014
  14. Jain, R. and Lee, L. (2012), Fiber Reinforced Polymer (FRP) Composites for Infrastructure Applications: Focusing on Innovation, Technology Implementation and Sustainability, Springer.
  15. Kong, F.K. (1990), Reinforced Concrete Deep Beams, Blackie, Glasgow and London.
  16. Krour, B., Bernard, F. and Tounsi, A. (2013), "Fibers orientation optimization for concrete beam strengthened with a CFRP bonded plate: A coupled analytical-numerical investigation", Eng. Struct., 56, 218-227. https://doi.org/10.1016/j.engstruct.2013.05.008
  17. Lu, X.Z., Teng, J.G., Ye, L.P. and Jiang, J.J. (2005), "Bond-slip models for FRP sheets/plates bonded to concrete", Eng. Struct., 27(6), 920-937. https://doi.org/10.1016/j.engstruct.2005.01.014
  18. Maghsoudi, A.A. and Bengar, H.A. (2011), "Acceptable lower bound of the ductility index and serviceability state of RC continuous beams strengthened with CFRP sheets", Sci. Iranica, 18(1), 36-44. https://doi.org/10.1016/j.scient.2011.03.005
  19. Oudah, F. and El-Hacha, R. (2012), "A new ductility model of reinforced concrete beams strengthened using Fiber Reinforced Polymer reinforcement", Compos. Part B: Eng., 43(8), 3338-3347. https://doi.org/10.1016/j.compositesb.2012.01.071
  20. Panda, K.C., Bhattacharyya, S.K. and Barai, S.V. (2012), "Shear behaviour of RC T-beams strengthened with U-wrapped GFRP sheet", Steel Compos. Struct., Int. J., 12(2), 149-166. https://doi.org/10.12989/scs.2012.12.2.149
  21. Panjehpour, M., Farzadnia, N., Anwar, M.P. and Ali, A.A.A. (2011), "FRP sheets contribution in common repair techniques of concrete structures with emphasis on concrete columns", Int. J. Sustain. Construct. Eng. Tech., 2(2), 54-61.
  22. Sayed-Ahmed, E.Y., Bakay, R. and Shrive, N.G. (2009), "Bond Strength of FRP Laminates to Concrete: State-of-the-Art Review", Electron. J. Struct. Eng., 9, 45-61.
  23. Vecchio, F.J. and Collins, M.P. (1986), "The modified compression-field theory for reinforced concrete elements subjected to shear", ACI J., 83(2), 219-231.
  24. Wang, H. and Belarbi, A. (2011), "Ductility characteristics of fiber-reinforced-concrete beams reinforced with FRP rebars", Construct. Build. Mater., 25(5), 2391-2401. https://doi.org/10.1016/j.conbuildmat.2010.11.040
  25. Wight, J.K. and Macgregor, J.G. (2009), Reinforced Concrete Mechanics and Design, Pearson Prentice Hall, USA.
  26. You, Z., Chen, X. and Dong, S. (2011), "Ductility and strength of hybrid fiber reinforced self-consolidating concrete beam with low reinforcement ratios", Syst. Eng. Procedia, 1, 28-34. https://doi.org/10.1016/j.sepro.2011.08.006
  27. Zhang, N. and Tan, K.-H. (2007), "Direct strut-and-tie model for single span and continuous deep beams", Eng. Struct., 29(11), 2987-3001. https://doi.org/10.1016/j.engstruct.2007.02.004

Cited by

  1. Effectiveness factor of the strut-and-tie model for reinforced concrete deep beams strengthened with CFRP sheet vol.12, 2017, https://doi.org/10.1016/j.jobe.2017.05.001
  2. Retrofitting of RC girders using pre-stressed CFRP sheets vol.20, pp.4, 2016, https://doi.org/10.12989/scs.2016.20.4.833
  3. Repair of flange damage steel-concrete composite girders using CFRP sheets vol.55, pp.3, 2015, https://doi.org/10.12989/sem.2015.55.3.511
  4. Effect of shear deformation on adhesive stresses in plated concrete beams: Analytical solutions vol.15, pp.3, 2015, https://doi.org/10.12989/cac.2015.15.3.337
  5. Strut Deformation in CFRP-Strengthened Reinforced Concrete Deep Beams vol.2014, 2014, https://doi.org/10.1155/2014/265879
  6. Refinement of Strut-and-Tie Model for Reinforced Concrete Deep Beams vol.10, pp.6, 2015, https://doi.org/10.1371/journal.pone.0130734
  7. Flexural behavior of concrete beams reinforced with CFRP prestressed prisms vol.17, pp.3, 2016, https://doi.org/10.12989/cac.2016.17.3.295
  8. Modeling shear behavior of reinforced concrete beams strengthened with externally bonded CFRP sheets vol.61, pp.1, 2014, https://doi.org/10.12989/sem.2017.61.1.125
  9. Improved analytical method for adhesive stresses in plated beam: Effect of shear deformation vol.7, pp.3, 2014, https://doi.org/10.12989/acc.2019.7.3.151
  10. The effect of parameters of visco-Pasternak foundation on the bending and vibration properties of a thick FG plate vol.18, pp.2, 2014, https://doi.org/10.12989/gae.2019.18.2.161
  11. Flexural behaviour of steel beams reinforced by carbon fibre reinforced polymer: Experimental and numerical study vol.72, pp.4, 2019, https://doi.org/10.12989/sem.2019.72.4.409
  12. Strengthening of shear deficient RC deep beams using GFRP sheets and mechanical anchors vol.48, pp.1, 2014, https://doi.org/10.1139/cjce-2019-0333
  13. Numerical analysis of the shear behavior of FRP-strengthened continuous RC beams having web openings vol.227, pp.None, 2021, https://doi.org/10.1016/j.engstruct.2020.111451
  14. Shear Strengthening of Deep T-Section RC Beams with CFRP Bars vol.14, pp.20, 2014, https://doi.org/10.3390/ma14206103
  15. A STM-based analytical model for predicting load capacity of deep RC beams with openings vol.34, pp.None, 2021, https://doi.org/10.1016/j.istruc.2021.08.052