Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Strength and strain enhancements of concrete columns confined with FRP sheets

  • Campione, G. (Dipartimento di Ingegneria strutturale e Geotecnica, Universita di Palermo) ;
  • Miraglia, N. (Dipartimento di Ingegneria strutturale e Geotecnica, Universita di Palermo) ;
  • Papia, M. (Dipartimento di Ingegneria strutturale e Geotecnica, Universita di Palermo)
  • Received : 2004.03.12
  • Accepted : 2004.07.23
  • Published : 2004.12.25
⟨ Previous Next ⟩

Abstract

The compressive behavior up to failure of short concrete members reinforced with fiber reinforced plastic (FRP) is investigated. Rectangular cross-sections are analysed by means of a simplified elastic model, able also to explain stress-concentration. The model allows one to evaluate the equivalent uniform confining pressure in ultimate conditions referred to the effective confined cross-section and to the effective stresses in FRP along the sides of section; consequently, it makes it possible to determine ultimate strain and the related bearing capacity of the confined member corresponding to FRP failure. The effect of local reinforcements constitute by single strips applied at corners before the continuous wrapping and the effect of round corners are also considered. Analytical results are compared to experimental values available in the literature.

Keywords

References

  1. Campione, G., Miraglia, N. and Scibilia, N. (2001), "Comportamento in compressione di elementi in calcestruzzo armato a sezione quadrata e circolare rinforzati con FRP", Ingegneria Sismica, 2, 5-12 (only available in Italian).
  2. Campione, G. and Miraglia, N. (2003), "Strength and strain capacities of concrete compression members reinforced with FRP", Cement & Concrete Composites, 25(1), 31-41. https://doi.org/10.1016/S0958-9465(01)00048-8
  3. Campione, G., Miraglia, N. and Papia, M. (2003), "Influence of section shape and wrapping technique on the compressive behavior of concrete columns confined with CFRP sheets", Proc. Int. Conf. Composites in Constructions, Bruno et al. (eds.), 216-221.
  4. Caner, F.C. and Bazant, Z.P. (2002), "Lateral confinement needed to suppress softening of concrete in compression", J. Eng. Mech., ASCE, 128(12), 1304-1313. https://doi.org/10.1061/(ASCE)0733-9399(2002)128:12(1304)
  5. Chaallal, O., Hassen, M. and Shahawy, M. (2003), "Confinement model for axially loaded short rectangular columns strengthened with fiber-reinforced polymer wrapping", ACI Struct. J., 100(2), 215-221.
  6. CEB-FIP Bulletin 14 (2001), "Externally bonded FRP reinforcement for RC structures"
  7. Cusson, D. and Paultre, P. (1995), "Stress-strain model for confined high-strength concrete", J. Struct. Engng., ASCE, 121(3), 468-477. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:3(468)
  8. Demers, M. and Neale, W.K. (1999), "Confinement of reinforced concrete columns with fibre-reinforced composite sheets - An experimental study", Can. J. Civ. Eng., 26, 226-241. https://doi.org/10.1139/cjce-26-2-226
  9. Elwi, A.A. and Murray, D.W. (1979), "A 3D hypoelastic concrete constitutive relationship", J. Eng. Mech., ASCE, 105, 623-641.
  10. Karabinis, A.I. and Rousakis, T.C. (2002), "Concrete confined by FRP material: A plasticity approach", Eng. Struct., 24, 923-932. https://doi.org/10.1016/S0141-0296(02)00011-1
  11. Kiang, H.T. (2002), "Strength enhancement of rectangular reinforced concrete columns using fiber-reinforced polymer", J. of Comp. for Constr., ASCE, 6(3), 175-183. https://doi.org/10.1061/(ASCE)1090-0268(2002)6:3(175)
  12. Ilki, A. and Kumbasar, N. (2002), "Behavior of damaged and undamaged concrete strengthened by carbon fiber composite sheets", Struct. Engrg. Mech., 13(1), 75-90. https://doi.org/10.12989/sem.2002.13.1.075
  13. Ignatowski, P. and Kaminska, M.E. (2003), "Concrete confinement with CFRP composites" Proc. Int. Conf. Composites in Constructions, Bruno et al. (eds.), 361-366.
  14. Lam, L. and Teng, J.G. (2002), "Strength models for fiber-reinforced plastic-confined concrete", J. Struct. Eng., ASCE, 128(5), 612-623. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:5(612)
  15. La Tegola, A. and Manni, O. (1998), "Structural behavior of concrete elements confined with FRP", Proc. of ECCM Conf., 323-330
  16. Maalej, M., Tanwongsval, S. and Paramasivam, P. (2003), "Modelling of rectangular RC columns strengthened with FRP", Cement & Concrete Composites, 25, 263-276. https://doi.org/10.1016/S0958-9465(02)00017-3
  17. Mander, J.B., Priestley, M.J.N. and Park, R. (1988), "Theoretical stress-strain model for confined concrete", J. Struct. Engrg., ASCE, 114(8), 1804-1826. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804)
  18. Mirmiran, A., Shahawy, M., Samaan, M., EL Echary, H., Mastrapa, J.C. and Pico, O. (1998), "Effect of column parameters on FRP-confined concrete", J. of Comp. for Constr., ASCE, 2(4), 175-185. https://doi.org/10.1061/(ASCE)1090-0268(1998)2:4(175)
  19. Moran, D.A. and Pantelides, C.P. (2002), "Stress-strain model for fiber-reinforced polymer-confined concrete", J. of Comp. for Constr., ASCE, 6(4), 233-240. https://doi.org/10.1061/(ASCE)1090-0268(2002)6:4(233)
  20. Purba, B.K. and Mufti, A.A. (1999), "Investigation of the behavior of circular concrete columns reinforced with carbon fiber reinforced polymer (CFRP) jackets", Can. J. Civ. Eng., 26, 590-596. https://doi.org/10.1139/cjce-26-5-590
  21. Richart, F.E., Brandtzaeg, A. and Brown, R.L. (1929), "The failure of plain and spiral reinforced concrete in compression", Engineering Experiment Station, Bulletin N. 190, University of Illinois, Urbana, USA.
  22. Rochette, P. and Labossière, P. (2000), "Axial testing of rectangular column models confined with composites", J. of Comp. for Constr., ASCE, 4(3), 129-136. https://doi.org/10.1061/(ASCE)1090-0268(2000)4:3(129)
  23. Ravzi, S. and Saatcioglu, M. (1999), "Confinement model for high-strength concrete", J. of Struct. Engrg., ASCE, 125(3), 261-289.
  24. Saadatmanesh, H., Ehsani, R.M. and Jin, L. (1997), "Repair of earthquake-damaged RC columns with FRP wraps", ACI Struct. J., 94(2), 206-215.
  25. Saafi, M., Toutanji, H.A. and Li, Z. (1999), "Behavior of concrete columns confined with fiber reinforced polymer tubes", ACI Material J., 96(4), 500-509.
  26. Seible, F., Priesley, M.J.N., Hegemier, G.A. and Innamorato, D. (1997), "Seismic retrofit of R.C. columns with continuous carbon fiber jackets", J. of Comp. for Const., ASCE, 1(2), 52-62. https://doi.org/10.1061/(ASCE)1090-0268(1997)1:2(52)
  27. Shehata, I.A.E.M., Carneiro, L.A.V. and Shehata, L.C.D. (2002), "Strength of short concrete columns confined with CFRP sheets", Materials and Structures, 35, 50-58. https://doi.org/10.1007/BF02482090
  28. Spoelstra, M.R. and Monti, G. (1999), "FRP-confined concrete model", J. of Comp. for Constr., ASCE, 3(3), 143-150. https://doi.org/10.1061/(ASCE)1090-0268(1999)3:3(143)
  29. Tan, K.H. (2002), "Strength enhancement of rectangular reinforced concrete columns using fiber-reinforced polymer", J. of Comp. for Constr., ASCE, 6(3), 175-183. https://doi.org/10.1061/(ASCE)1090-0268(2002)6:3(175)
  30. Thériault, M., Claude, S. and Neale, K.W. (2001), "Effect of size and slenderness ratio on the behavior of FRPwrapped columns", FRPRCS-5, Thomas Telford, London, 765-771.
  31. Toutanji, H.A. (1999), "Stress-strain characteristics of concrete columns externally confined with advanced fiber composite sheets", ACI Material J., 96(3), 397-404.
  32. Teng, G.J. and Lam, L. (2002), "Compressive behavior of carbon fiber reinforced polymer-confined concrete in elliptical columns", J. Struct. Engrg., ASCE, 128(2), 1535-1543. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:12(1535)
  33. Yang, X., Nanni, A. and Chen, G. (2001), "Effect of corner radius on the performance of externally bonded FRP reinforcement", Proc. of FRPRCS5, Non-metallic reinforcement for concrete structures, Cambridge, UK, July, 16-18.
  34. Wang, C.Y. and Restrepo, J.I. (2001), "Investigation on concentrically loaded reinforced concrete columns confined with glass fiber-reinforced polymer jackets", ACI Struct. J., 98(3), 377-385.

Cited by

  1. Confining of square RC columns with FRP sheets using corner strip–batten technique vol.70, 2014, https://doi.org/10.1016/j.conbuildmat.2014.07.073
  2. The confinement of concrete in compression using CFRP composites – effective design equations vol.20, pp.5, 2014, https://doi.org/10.3846/13923730.2013.801911
  3. Corner strengthening of square and rectangular concrete-filled FRP tubes vol.117, 2016, https://doi.org/10.1016/j.engstruct.2016.03.031
  4. Experimental study on partially deteriorated strength concrete columns confined with CFRP vol.31, pp.10, 2009, https://doi.org/10.1016/j.engstruct.2009.05.006
  5. Influence of FRP wrapping techniques on the compressive behavior of concrete prisms vol.28, pp.5, 2006, https://doi.org/10.1016/j.cemconcomp.2006.01.002
  6. Behavior of Large-Scale Rectangular Columns Confined with FRP Composites vol.14, pp.1, 2010, https://doi.org/10.1061/(ASCE)CC.1943-5614.0000051
  7. Axial Experiment on CFRP Confined Steel Reinforced Concrete Columns with Partial Deteriorated Strength vol.29, pp.6, 2010, https://doi.org/10.1177/0731684408100739
  8. Experimental investigation on the compressive behavior of short-term preloaded carbon fiber reinforced polymer-confined concrete columns 2017, https://doi.org/10.1002/suco.201700072
  9. Damage-based stress-strain model of RC cylinders wrapped with CFRP composites vol.5, pp.5, 2004, https://doi.org/10.12989/acc.2017.5.5.539
  10. A Mechanical Approach for Evaluating the Distribution of Confinement Pressure in FRP-Wrapped Rectangular Columns vol.145, pp.12, 2004, https://doi.org/10.1061/(asce)em.1943-7889.0001673
  11. An analytical model for PVC-FRP confined reinforced concrete columns under low cyclic loading vol.77, pp.2, 2021, https://doi.org/10.12989/sem.2021.77.2.179