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Displacement-based seismic design of reinforced concrete columns strengthened by FRP jackets using a nonlinear flexural model

  • Cho, Chang-Geun (School of Architecture, Chosun University) ;
  • Yun, Hee-Cheon (Department of Civil Engineering, Chungnam National University) ;
  • Kim, Yun-Yong (Department of Civil Engineering, Chungnam National University)
  • 투고 : 2008.12.12
  • 심사 : 2009.03.12
  • 발행 : 2009.04.25

초록

In the current research, a displacement-based seismic design scheme to retrofit reinforced concrete columns using FRP composite materials has been proposed. An accurate prediction for the nonlinear flexural analysis of FRP jacketed concrete members has been presented under multiaxial constitutive laws of concrete and composite materials. Through modification of the displacement coefficient method (DCM) and the direct displacement-based design method (DDM) of reinforced concrete structures, two algorithms for a performance-based seismic retrofit design of reinforced concrete columns with a FRP jacket have been newly introduced. From applications to retrofit design it is known that two methods are easy to apply in retrofit design and the DCM procedure underestimates the target displacement to compare with the DDM procedure.

키워드

참고문헌

  1. Calvi, G.M. and Kingsley, G.R. (1997), "Displacement-based seismic design of multidegree-of-freedom bridge structures", Earthq. Eng. Struct. Dyn. 24, 1247-1266.
  2. Cho, C.G., Kwon, M. and Spacone, E. (2005), "Analytical model of concrete-filled fiber-reinforced polymer tubes based on multiaxial constitutive laws", J. Struct. Eng., ASCE, 131(9), 1426-1433. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:9(1426)
  3. Cho, C.G. and Kwon, M. (2008), "Prediction of nonlinear bending behavior for FRP concrete beams based on multi-axial constitutive laws", Eng. Struct., 30(9), 1311-2320.
  4. Chopra. A.K. and Goel, R.K. (2001), "Direct displacement-based design: use of inelastic design spectra versus elastic design spectra", Earthq. Spectra, 17(1), 47-64. https://doi.org/10.1193/1.1586166
  5. Fam, A.Z. and Rizkalla, S.H. (2001), "Confinement model for axially loaded concrete confined by circular fiber-reinforced polymer tubes", ACI Struct. J., 98(4), 451-461.
  6. Federal Emergency Management Agency (FEMA) (1997), NEHRP Guidelines for the Seismic Rehabilitation of Buildings, Report FEMA 273 (Guidelines) and Report 274 (Commentary), Washington, D.C.
  7. Freeman, S.A., Nicoletti, J.P. and Tyrell, J.V. (1975), "Evaluations of existing buildings for seismic risk, a case study of puget sound naval shipyard," Proceedings of the 1st U.S. National Conf. on Earthquake Engineering, Bremerton, Washington, 113-1220.
  8. Freeman, S.A. (1998), "Development and use of capacity spectrum method", Paper No. 269, 6th US National Conference on Earthquake Engineering/EERI, Seattle, Washington.
  9. Hsieh, S.S., Ting, E.C. and Chen, W.F. (1979), "An elastic-fracture model for concrete," ASCE Proc. 3d Eng. Mech. Div. Spec. Conf, 437-440.
  10. Kawashima, K., Hosotani, M. and Hoshikuma, J. (1997), "A model for confinement effect for concrete cylinders confined by carbon fiber sheets", NCEER-NICEDE Workshop on Earthquake Engineering Frontiers in Transportation Facilities, NCEER, State Univ. of New York, Buffalo, N.Y.
  11. Kowalsky, M.J., Priestley, M.J.N. and MacRae, G.A. (1995), "Displacement-based Seismic Design of RC Bridge Columns in Seismic Regions", Earthq. Eng. Struct. Dyn., 24, 1623-1643. https://doi.org/10.1002/eqe.4290241206
  12. Kupfer, H. (1969), "Behavior of concrete under biaxial stress", J. ACI, 66(8), 656-666.
  13. Mills, L.L. and Zimmerman, R.M. (1970), "Compressive strength of plain concrete under multiaxial loading conditions", J. ACI, 67(10), 802-807.
  14. Mirmiran, A. and Shahawy, M. (1997), "Behavior of concrete columns confined by fiber composites", J. Struct. Eng., ASCE, 123(5), 583-590. https://doi.org/10.1061/(ASCE)0733-9445(1997)123:5(583)
  15. Newmark, N.M. and Hall, W.J. (1982), Earthquake Spectra and Design, EERI Monograph Series, Earthquake Engineering Research Institute, Oakland, California.
  16. Priestley, M.J.N., Seible, F. and Calvi, G.M. (1996), Seismic Design and Retrofit of Bridges, John Wiley & Sons, New York.
  17. Priestley, M.J.N. and Calvi, G.M. (1997), Concepts and procedures for direct displacement-based design, Seismic Design Methodologies for the Next Generation of Codes, Fajfar and Krawinkler (eds), Balkema, Rotterdam, 171-181.
  18. Saadatmanesh, H., Ehsani, M.R. and Jin, L. (1996), "Seismic strengthening of circular bridge pier models with fiber composites" ACI Struct. J., 93, 639-647.
  19. Saenz, L.P. (1964), "Discussion of equation for the stress-strain curve of concrete by desayi and krishman", J. ACI, 61(9).
  20. Samaan, M., Mirmiran, A., and Shahawy, M. (1998), "Model of concrete confined by fiber composites", J. Struct. Eng., ASCE, 124(9), 1025-1031. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:9(1025)
  21. Shahawy, M. and Beitelman, T.E. (1995), "Structural applications of advanced composite materials in bridge construction and repair", Proc. of the XIII ASCE Structures Congress.
  22. Tsai, S.W, and Wu, E.M. (1971), "A general theory of strength for anisotropic materials", J. Comp. Mater. 5, 58-80. https://doi.org/10.1177/002199837100500106
  23. Wight, G.D., Kowalsky, M.J. and Ingham, J.M. (2007), "Direct displacement-based seismic design of unbonded post-tensioned masonry walls" ACI Struct. J., 104, 560-569.

피인용 문헌

  1. Nonlinear Analysis of FRP Strengthened Reinforced Concrete Columns by Force-Based Finite Element Model vol.25, pp.5, 2013, https://doi.org/10.4334/JKCI.2013.25.5.529