Computers and Concrete

  • 제16권5호
  • /
  • Pages.759-774
  • /
  • 2015
  • /
  • 1598-8198(pISSN)
  • /
  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Numerical simulation on structural behavior of UHPFRC beams with steel and GFRP bars

  • Yoo, Doo-Yeol (Department of Civil Engineering, The University of British Columbia) ;
  • Banthia, Nemkumar (Department of Civil Engineering, The University of British Columbia)
  • 투고 : 2015.09.05
  • 심사 : 2015.11.12
  • 발행 : 2015.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

This study simulates the flexural behavior of ultra-high-performance fiber-reinforced concrete (UHPFRC) beams reinforced with steel and glass fiber-reinforced polymer (GFRP) rebars. For this, micromechanics-based modeling was first carried out on the basis of single fiber pullout models considering inclination angle. Two different tension-softening curves (TSCs) with the assumptions of 2-dimensional (2-D) and 3-dimensional (3-D) random fiber orientations were obtained from the micromechanics-based modeling, and linear elastic compressive and tensile models before the occurrence of cracks were obtained from the mechanical tests and rule of mixture. Finite element analysis incorporating smeared crack model was used due to the multiple cracking behaviors of structural UHPFRC beams, and the characteristic length of two times the element width (or two times the average crack spacing at the peak load) was suggested as a result of parametric study. Analytical results showed that the assumption of 2-D random fiber orientation is appropriate to a non-reinforced UHPFRC beam, whereas the assumption of 3-D random fiber orientation is suitable for UHPFRC beams reinforced with steel and GFRP rebars due to disorder of fiber alignment from the internal reinforcements. The micromechanics-based finite element analysis also well predicted the serviceability deflections of UHPFRC beams with GFRP rebars and hybrid reinforcements.

키워드

참고문헌

  1. American Concrete Institute (2006), Guide for the design and construction of concrete reinforced with FRP bars, ACI 440.1R-06, Farmington Hills, Michigan, IL.USA.
  2. Association Francaise de Genie Civil (2002), "Ultra high performance fibre-reinforced concretes", AFGC/SETRA, Interim Recommendations, Bagneux, France.
  3. Bischoff, P.H. (2005), "Reevaluation of deflection prediction for concrete beams reinforced with steel and fiber reinforced polymer bars", J. Struct. Eng., 131(5), 752-767. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:5(752)
  4. Cosenza, E., Manfredi, G. and Realfonzo, R. (1995), "Analytical modelling of bond between FRP reinforcing bars and concrete", In: Taerwe L, editor. Proceedings of second international RILEM symposium (FRPRCS-2). London: E and FN Spon.
  5. Denarie, E., Habel, K. and Bruhwiler, E. (2003), "Structural behavior of hybrid elements with advanced cementitious materials (HPFRCC)", Fourth International Workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC-4), RILEM, Ann Arbor, Michigan, IL.USA.
  6. Ferrara, L. (2012), "High performance fiber reinforced self-compacting concrete (HPFRSCC): a ''smart material'' for high end engineering applications", Proceedings of the 3rd International Workshop on Heterogeneous Architectures and Computing, Madrid.
  7. 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
  8. Japan Society of Civil Engineers (2004), "Recommendations for design and construction of ultra-high strength fiber reinforced concrete structures (Draft)", JSCE, Tokyo, Japan.
  9. Kang, S.T., Lee, B.Y., Kim, J.K. and Kim, Y.Y. (2011), "The effect of fibre distribution characteristics on the flexural strength of steel fibre-reinforced ultra high strength concrete", Const. Build. Mater., 25(5), 2450-2457. https://doi.org/10.1016/j.conbuildmat.2010.11.057
  10. Lee, Y., Kang, S.T. and Kim, J.K. (2010), "Pullout behavior of inclined steel fiber in an ultra-high strength cementitious matrix", Const. Build. Mater., 24(10), 2030-2041. https://doi.org/10.1016/j.conbuildmat.2010.03.009
  11. Naaman, A.E. and Reinhardt, H.W. (2003), "High performance fiber reinforced cement composites HPFRCC 4: International RILEMWorkshop", Mater. Struct., 36(10), 710-712. https://doi.org/10.1007/BF02479507
  12. Naaman, A.E., Namur, G.G., Alwan, J.M. and Najm, H.S. (1991), "Fiber pullout and bond slip. 1: analytical study", J. Struct. Eng., 117(9), 2769-2790. https://doi.org/10.1061/(ASCE)0733-9445(1991)117:9(2769)
  13. Nanni, A. (1993), "Flexural behavior and design of RC members using FRP reinforcement", J. Struct. Eng., 119(11), 3344-3359. https://doi.org/10.1061/(ASCE)0733-9445(1993)119:11(3344)
  14. Richard, P. and Cheyrezy, M. (1995), "Composition of reactive powder concretes" , Cem. Concr. Res., 25(7), 1501-1511. https://doi.org/10.1016/0008-8846(95)00144-2
  15. TNO Building and Construction Research (2002), DIANA-8 user's manual, TNO DIANA BV, Delft, The Netherlands.
  16. Wille, K., Kim, D.J. and Naaman, A.E. (2011), "Strain-hardening UHP-FRC with low fiber contents", Mater. Struct., 44(3), 583-598. https://doi.org/10.1617/s11527-010-9650-4
  17. Yang, I.H., Joh, C. and Kim, B.S. (2011), "Flexural strength of large-scale ultra high performance concrete prestressed T-beams", Can. J. Civil Eng., 38(11), 1185-1195. https://doi.org/10.1139/l11-078
  18. Yoo, D.Y. (2014), "Performance enhancement of ultra-high-performance fiber-reinforced concrete and model development for practical utilization", Ph.D. Thesis, Korea University, Seoul, Korea, 586 pp.
  19. Yoo, D.Y. and Yoon, Y.S. (2015), "Structural performance of ultra-high-performance concrete beams with different steel fibers", Eng. Struct., 102, 409-423. https://doi.org/10.1016/j.engstruct.2015.08.029
  20. Yoo, D.Y., Kang, S.T., Lee, J.H. and Yoon, Y.S. (2013), "Effect of shrinkage reducing admixture on tensile and flexural behaviors of UHPFRC considering fiber distribution characteristics", Cem. Concr. Res., 54, 180-190. https://doi.org/10.1016/j.cemconres.2013.09.006
  21. Yoo, D.Y., Kang, S.T. and Yoon, Y.S. (2014a), "Effect of fiber length and placement method on flexural behavior, tension-softening curve, and fiber distribution characteristics of UHPFRC", Const. Build. Mater., 64, 67-81. https://doi.org/10.1016/j.conbuildmat.2014.04.007
  22. Yoo, D.Y., Shin, H.O., Yang, J.M. and Yoon, Y.S. (2014b), "Material and bond properties of ultra high performance fiber reinforced concrete with micro steel fibers", Compos. Part B-Eng., 58, 122-133. https://doi.org/10.1016/j.compositesb.2013.10.081
  23. Yoo, D.Y., Kwon, K.Y., Park, J.J. and Yoon, Y.S. (2015a), "Local bond-slip response of GFRP rebar in ultrahigh-performance fiber-reinforced concrete", Compos. Struct., 120, 53-64. https://doi.org/10.1016/j.compstruct.2014.09.055
  24. Yoo, D.Y., Zi, G., Kang, S.T. and Yoon, Y.S. (2015b), "Biaxial flexural behavior of ultra-high-performance fiber-reinforced concrete with different fiber lengths and placement methods", Cem. Concr. Compos., 63, 51-66. https://doi.org/10.1016/j.cemconcomp.2015.07.011
  25. Yoo, D.Y., Kang, S.T., Banthia, N. and Yoon, Y.S. (2015c), "Nonlinear finite element analysis of ultra-highperformance fiber-reinforced concrete beams", Int. J. Damage Mech. DOI: 10.1177/1056789515612559

피인용 문헌

  1. A Review on Structural Behavior, Design, and Application of Ultra-High-Performance Fiber-Reinforced Concrete vol.10, pp.2, 2016, https://doi.org/10.1007/s40069-016-0143-x
  2. Post-cracking behavior of UHPC on the concrete members reinforced by steel rebar vol.18, pp.1, 2016, https://doi.org/10.12989/cac.2016.18.1.139
  3. Comparative flexural behavior of ultra-high-performance concrete reinforced with hybrid straight steel fibers vol.132, 2017, https://doi.org/10.1016/j.conbuildmat.2016.11.104
  4. Buckling of concrete columns retrofitted with Nano-Fiber Reinforced Polymer (NFRP) vol.18, pp.5, 2016, https://doi.org/10.12989/cac.2016.18.5.1053
  5. Experimental and numerical study of the flexural behaviour of ultra-high performance fibre reinforced concrete beams vol.138, 2017, https://doi.org/10.1016/j.conbuildmat.2017.02.002
  6. Mechanical and structural behaviors of ultra-high-performance fiber-reinforced concrete subjected to impact and blast vol.149, 2017, https://doi.org/10.1016/j.conbuildmat.2017.05.136
  7. Ductility of Concrete Beams Reinforced with Both Fiber-Reinforced Polymer and Steel Tension Bars vol.16, pp.11, 2018, https://doi.org/10.3151/jact.16.531
  8. Mechanical performances of concrete beams with hybrid usage of steel and FRP tension reinforcement vol.20, pp.4, 2015, https://doi.org/10.12989/cac.2017.20.4.391
  9. Replacement of steel rebars by GFRP rebars in the concrete structures vol.4, pp.2, 2018, https://doi.org/10.1016/j.kijoms.2018.02.002
  10. Computation of stress-deformation of deep beam with openings using finite element method vol.6, pp.3, 2015, https://doi.org/10.12989/acc.2018.6.3.245
  11. Validation of a non-linear hinge model for tensile behavior of UHPFRC using a Finite Element Model vol.23, pp.1, 2019, https://doi.org/10.12989/cac.2019.23.1.011
  12. Foam Concrete and Composite Fittings Cohesion Parameters: Experimental Result and Numerical Simulation vol.992, pp.None, 2020, https://doi.org/10.4028/www.scientific.net/msf.992.836