Computers and Concrete

  • 제20권4호
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  • Pages.391-407
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  • 2017
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Mechanical performances of concrete beams with hybrid usage of steel and FRP tension reinforcement

  • Bui, Linh V.H. (Department of Civil Engineering, Chulalongkorn University) ;
  • Stitmannaithum, Boonchai (Department of Civil Engineering, Chulalongkorn University) ;
  • Ueda, Tamon (Laboratory of Engineering for Maintenance System, Hokkaido University)
  • 투고 : 2017.02.28
  • 심사 : 2017.05.11
  • 발행 : 2017.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

Fiber reinforced polymer (FRP) bars have been recently used to reinforce concrete members in flexure due to their high tensile strength and especially in corrosive environments to improve the durability of concrete structures. However, FRPs have a low modulus of elasticity and a linear elastic behavior up to rupture, thus reinforced concrete (RC) components with such materials would exhibit a less ductility in comparison with steel reinforcement at the similar members. There were several studies showed the behavior of concrete beams with the hybrid combination of steel and FRP longitudinal reinforcement by adopting the experimental and numerical programs. The current study presents a numerical and analytical investigation based on the data of previous researches. Three-dimensional (3D) finite element (FE) models of beams by using ANSYS are built and investigated. In addition, this study also discusses on the design methods for hybrid FRP-steel beams in terms of ultimate moment capacity, load-deflection response, crack width, and ductility. The effects of the reinforcement ratio, concrete compressive strength, arrangement of reinforcement, and the length of FRP bars on the mechanical performance of hybrid beams are considered as a parametric study by means of FE method. The results obtained from this study are compared and verified with the experimental and numerical data of the literature. This study provides insight into the mechanical performances of hybrid FRP-steel RC beams, builds the reliable FE models which can be used to predict the structural behavior of hybrid RC beams, offers a rational design method together with an useful database to evaluate the ductility for concrete beams with the combination of FRP and steel reinforcement, and motivates the further development in the future research by applying parametric study.

키워드

참고문헌

  1. ACI 440.1R-06 (2006), Guide for the Design and Construction of Structural Concrete Reinforced with FRP Bars, American Concrete Institute, Detroit, U.S.A.
  2. ACI 440R-96 (1996b), State of the Art Report on Fiber Reinforced Plastic Reinforcement for Concrete Structures, American Concrete Institute, Detroit, U.S.A.
  3. Aiello, M.A. and Ombres, L. (2002), "Structural performances of concrete beams with hybrid (fiber-reinforced polymer-steel) reinforcements", J. Compos. Constr., 6(2), 133-140. https://doi.org/10.1061/(ASCE)1090-0268(2002)6:2(133)
  4. ANSYS-Release Version 15.0 (2013), A Finite Element Computer Software and User Manual for Nonlinear Structural Analysis, Canonsburg, U.S.A.
  5. Bencardino, F., Condello, A. and Ombres L. (2016), "Numerical and analytical modeling of concrete beams with steel, FRP and hybrid FRP-steel reinforcements", Compos. Struct., 140, 53-65. https://doi.org/10.1016/j.compstruct.2015.12.045
  6. Bischoff, P.H. (2007), "Deflection calculation of FRP reinforced concrete beams based on modifications to the existing Branson equation", J. Compos. Constr., 11(1), 4-14. https://doi.org/10.1061/(ASCE)1090-0268(2007)11:1(4)
  7. Branson, D.E. (1977), Deformation of Concrete Structures, McGraw-Hill, New York, U.S.A.
  8. Faza, S.S. and GangaRao, H.V.S. (1993), Theoretical and Experimental Correlation of Behaviour of Concrete Beams Reinforced with Fiber Plastic Rebars, Fiber Reinforced Plastic Reinforcement for Concrete Structures, SP-138, American Concrete Institute, Detroit, U.S.A.
  9. Ge, W., Zhang, J., Cao, D. and Tu, Y. (2015), "Flexural behaviors of hybrid concrete beams reinforced with BFRP bars and steel bars", Constr. Build. Mater., 87, 28-37. https://doi.org/10.1016/j.conbuildmat.2015.03.113
  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. Hawileh, R.A. (2015), "Finite element modeling of reinforced concrete beams with a hybrid combination of steel and aramid reinforcement", Mater. Des., 65, 831-839. https://doi.org/10.1016/j.matdes.2014.10.004
  12. Hind, M.K., Mustafa, O., Talha, E. and Abdolbaqi, M.K. (2016), "Flexural behavior of concrete beams reinforced with different types of fibers", Comput. Concrete, 18(5), 999-1018. https://doi.org/10.12989/cac.2016.18.5.999
  13. Hognestad, E., Hanson, N.W. and McHenry, D. (1955), "Concrete stress distribution in ultimate strength design", ACI J. Proc., 52(12), 455-479.
  14. Kara, I.F., Ashour, A.F. and Koroglu, M.A. (2015), "Flexural behavior of hybrid FRP/steel reinforced concrete beams", Compos. Struct., 129, 111-121. https://doi.org/10.1016/j.compstruct.2015.03.073
  15. Kara, I.F. (2016), "Flexural performance of FRP-reinforced concrete encased steel composite beams", Struct. Eng. Mech., 59(4), 775-793. https://doi.org/10.12989/sem.2016.59.4.775
  16. Lau, D. and Pam, H.J. (2010), "Experimental study of hybrid FRP reinforced concrete beams", Eng. Struct., 32(12), 3857-3865. https://doi.org/10.1016/j.engstruct.2010.08.028
  17. Oller, E., Mari, A., Bairan, J.A. and Cladera, A. (2015), "Shear design of reinforced concrete beams with FRP longitudinal and transverse reinforcement", Compos. Part B: Eng., 74, 104-122. https://doi.org/10.1016/j.compositesb.2014.12.031
  18. Pang, L., Qu, P., Zhu, P. and Xu, J. (2015), "Design propositions for hybrid FRP-steel reinforced concrete beams", J. Compos. Constr., 20(4), 1-9.
  19. Qin, R., Zhou, A. and Lau, D. (2017), "Effect of reinforcement ratio on the flexural performance of hybrid FRP reinforced concrete beams", Compos. Part B: Eng., 108, 200-209. https://doi.org/10.1016/j.compositesb.2016.09.054
  20. Qu, W., Zhang, X. and Huang, H. (2009), "Flexural behavior of concrete beams reinforced with hybrid (GFRP and steel) bars", J. Compos. Constr., 13(5), 350-359. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000035
  21. Tan, K.H. (1997), "Behavior of hybrid FRP-steel reinforced concrete beams", Proceedings of the 3rd International Symposium on Non-Metallic (FRP) Reinforcement for Concrete Structures (FRPRCS-3), Japan Concrete Institute, Tokyo, 487-494.
  22. Vijay, P.V. and GangaRao, H.V.S. (1996), "A unified limit state approach using deformability factors in concrete beams reinforced with GFRP bars", Proceedings of the 4th Conference on Materials Conference, Materials for The New Millennium.
  23. Yoo, D.Y. and Banthia, N. (2015), "Numerical simulation on structural behavior of UHPFRC beams with steel and GFRP bars", Comput. Concrete, 16(5), 759-774. https://doi.org/10.12989/cac.2015.16.5.759
  24. Yoo, D.Y., Banthia, N. and Yoon, Y.S. (2016), "Flexural behavior of ultra-high-performance fiber-reinforced concrete beams reinforced with GFRP and steel rebars", Eng. Struct., 111, 246-262. https://doi.org/10.1016/j.engstruct.2015.12.003
  25. Zhang, D., Wang, Q. and Dong, J. (2016), "Simulation study on CFRP strengthened reinforced concrete beam under four-point bending", Comput. Concrete, 17(3), 407-421. https://doi.org/10.12989/cac.2016.17.3.407