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Column Wrapping Seismic Retrofit Using Composite Plate Combined GFRP and Aluminum

GFRP 및 알루미늄으로 일체화된 복합 플레이트를 활용한 기둥래핑 내진보강

  • Park, Choon-Wook (School of Science and Technology Acceleration Engineering, Kyungpook National University) ;
  • Park, Ik-Hyun (Dept. of Architectural Engineering, Kyungpook National University)
  • 박춘욱 (경북대 대학원 과학기술실용공학부) ;
  • 박익현 (경북대 건축공학과 )
  • Received : 2023.03.08
  • Accepted : 2023.05.06
  • Published : 2023.06.30

Abstract

This study aims to assess the shear ability, ductility, and energy dissipation characteristics of specimens intended for jacket application, utilizing the wrapping method. The two specimens include the moment frame and the composite plate frame with a wrapping jacket. The experiments were conducted under the condition of simultaneous application of axial load and transverse force. The experimental results reflect various seismic resistance abilities of a structure, such as story-displacement ratio, stiffness, energy dissipation, and plastic rotation. Additionally, the results reveal the distribution of cracks and failures in extreme stages.

Keywords

Acknowledgement

이 논문은 2021학년도 경북대학교 신임교수정착연구비에 의하여 연구되었음

References

  1. Ministry of Construction and Transportation, (Korea Building Code 2005)
  2. Ministry of the Interior and Safety, statistic data
  3. Ministry of Land, Infrastructure and Transport, KDS 41 17 00
  4. Cha, J., Lee, J., & Lee, K.(2006). Analysis of CFRP-strengthened RC Beam-Column Joints, Journal of the Architectural Institute of Korea Structure & Constructure, 22(9)
  5. Ha, S., & Choi, D.(2011). Seismic Retrofit Effect of compression member reinforced FRP sheet, Journal of the Architectural Institute of Korea Structure & Constructure, 31(2)
  6. Shin, W., & Kim, J.(2008). Seismic Retrofit of Flat Plate Structures by Post-tensioning and Jacketing of Columns, Journal of the Architectural Institute of Korea Structure & Constructure, 24(12)
  7. Sakai, K., & Sheikh, S.(1989). "What Do We Know about Confinement in Reinforced Concrete Columns?", ACI Structural Journal, V. 86, No.2, March-April, pp. 192-207
  8. Rodriguez, M., & Santiago, S.(1998). "Simulated seismic Load tests on two-story waffle -flat- plate structure rehabilitated by jacketing" ACI structure journal, March-April, pp129-141
  9. Kwon, M., & Spacone, E.(1999). A Hypoelastic model for Cyclic Response of Concrete Structures, ASCE Structural Congress Proceeding, pp.207-210
  10. Kwon, M., Park, M., & See, S.(2000). A 3D Concrete Constitutive Model for Cyclic Analysis of Concrete Structures, KSCE Journal of Civil Engineering, vol 4(4), pp.165-173
  11. ACI Committee 374, Acceptance Criteria for Moment Frames Based on Structural Testing and Commentary (ACI 374.1-05), American Concrete Institute, Farmington Hills, MI, 2005
  12. Balan, T., Spacone, E., & Kwon, M.(2001). A 3D hypoplastic model for cyclic analysis of concrete structures, Engineering Structures, vol. 23(4), pp.233-342
  13. Mander, J., Nair, B., Wojtkowski, K., & Ma, J.(1993). "An experimental study on the seismic performance of brick-infilled steel frames With and without retrofit" NCEER technical report(93-0001)
  14. Wu, Z., Li, W., & Sakuma, N.(2006). "Innovative externally bonded FRP/concrete hybrid flexural members", Composite Structures, 72, 289-300. https://doi.org/10.1016/j.compstruct.2004.12.002
  15. Pan, A., & Moehle, J.(1989). Lateral Displacement Ductility of Reinforced Concrete, ACI Structural Journal, 86(3), p.p. 250~258
  16. Wu, Z., & Niu, H.(2000). "Study on Debonding Failure Load of RC Beams Strengthened with FRP sheets", Journal of Structural Engineering, Vol.46A, 1431-1441.
  17. Yost, J., Gross, S., Dinehart, D., & Mildenberg, J.(2007). "Flexural Behavior of Concrete Beams Strengthened with Near-Surface-Mounted CFRP Strips", ACI Structural Journal, 104(4), 430-437.
  18. Supaviriyakit, T., Pornpongsaroj, P., & Pimanmas, A.(2004). "Finite element analysis of FRP-strengthened RC beams", Songklanakarin J.Sci. Technol., 26(4), 497-507.