Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
권호 표지
DOI QR코드

DOI QR Code

Repair Scheme of FRP Column Jacketing System for Seismically-vulnerable RC Buildings under Successive Earthquakes

연속지진에 대한 지진 취약 철근콘크리트 건축물의 FRP 재킷 보수 전략 연구

  • Kim, Subin (Department of Architectural Engineering, Gyeongsang National University) ;
  • Kim, Haewon (Earthquake Hazards Reduction Center, National Disaster Management Research Institute) ;
  • Park, Jaeeun (Earthquake Hazards Reduction Center, National Disaster Management Research Institute) ;
  • Shin, Jiuk (Department of Architectural Engineering, Gyeongsang National University)
  • 김수빈 (경상국립대학교 대학원 건축공학과) ;
  • 김혜원 (국립재난안전연구원, 지진방재센터) ;
  • 박재은 (국립재난안전연구원, 지진방재센터) ;
  • 신지욱 (경상국립대학교 건축공학과)
  • Received : 2022.10.17
  • Accepted : 2022.12.15
  • Published : 2023.06.15
Download PDF
⟨ Previous Next ⟩

Abstract

Existing reinforced concrete (RC) frame buildings have seismic vulnerabilities because of seismically deficient details. In particular, since cumulative damage caused by successive earthquakes causes serious damage, repair/retrofit rehabilitation studies for successive earthquakes are needed. This study investigates the repair effect of fiber-reinforced polymer jacketing system for the seismically-vulnerable building structures under successive earthquakes. The repair modeling method developed and validated from the previous study was implemented to the building models. Additionally, the main parameters of the FRP jacketing system were selected as the number of FRP layers associated with the confinement effects and the installation location. To define the repair effects of the FRP jacketing system with the main parameters, this study conducted nonlinear time-history analyses for the building structural models with the various repairing scenarios. Based on this investigation, the repair effects of the damaged building structures were significantly affected by the damage levels induced from the mainshocks regardless of the retrofit scenarios.

Keywords

Acknowledgement

이 논문은 행정안전부 국립재난안전연구원 재난안전 공동연구 기술개발사업의 지원(2022-MOIS63-003) 및 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원(NRF-2021R1F1A1059976)을 받아 수행된 연구임.

References

  1. Bracci, J. M., Reinhorn, A. M., & Mander, J. B., "Seismic resistance of reinforced concrete frame structures designed for gravity loads: performance of structural system", Structural Journal, Vol. 92, No.5, pp.597~609, 1995, doi: 10.14359/909
  2. Beres, A., Pessiki, S. P., White, R. N., & Gergely, P., "Implications of experiments on the seismic behavior of gravity load designed RC beam-to-column connections", Earthquake Spectra, Vol.12, No.2, pp.185~198, 1996, doi: 10.1193/1.1585876
  3. El-Attar, A. G., White, R. N., & Gergely, P., "Behavior of gravity load design reinforced concrete buildings subjected to earthquakes", Structural Journal, Vol.94, No.2, pp.133~145, 1997, doi: 10.14359/468
  4. Kam, W. Y., Pampanin, S., & Elwood, K., "Seismic performance of reinforced concrete buildings in the 22 February Christchurch (Lyttleton) earthquake", 2011.
  5. Morita K, Takayama M. Comparison of LOPES measurements with CoREAS and REAS 3.1 simulations. In: Proceedings of the international conference of global network for innovative technology and AWAM international conference in civil engineering (IGNITE-AICCE'17), AIP Conference Proceedings 2017, Penang, Malaysia; 1892:020007-1 - 8.
  6. Aschheim, M., & Black, E., "Effects of prior earthquake damage on response of simple stiffness-degrading structures", Earthquake Spectra, Vol.15, No.1, pp.1~24, 1999, doi: 10.1193/1.1586026
  7. LeBorgne, M. R., "Modeling the post shear failure behavior of reinforced concrete columns", Doctoral dissertation, 2012.
  8. Fakharifar, M., Chen, G., Sneed, L., & Dalvand, A., "Seismic performance of postmainshock FRP/steel repaired RC bridge columns subjected to aftershocks", Composites Part B: Engineering, Vol.72, pp.183~198, doi:10.1016/j.compositesb.2014.12.010
  9. Jeon, J. S., DesRoches, R., Lowes, L. N., & Brilakis, I., "Framework of aftershock fragility assessment-case studies: older California reinforced concrete building frames", Earthquake Engineering & Structural Dynamics, Vol.44, No.15, pp.2617~2636, 2015, doi: 10.1002/eqe.2599
  10. Seible, F., Priestley, M. J. N., & Innamorato, D., "Earthquake retrofit of bridge columns with continuous carbon fiber jackets, volume II, design guidelines", Advanced Composites Technology Transfer Consortium", 1995.
  11. Seible, F., Priestley, M. N., Hegemier, G. A., & Innamorato, D., "Seismic retrofit of RC columns with continuous carbon fiber jackets", Journal of composites for construction, Vol.1, No.2, pp.52~62, 1997.
  12. Xiao, Y., Wu, H., & Martin, G. R., "Prefabricated composite jacketing of RC columns for enhanced shear strength", Journal of structural engineering, Vol.125, No.3, pp.255~264, 1999.
  13. Patel, S., "Rehabilitation of Non-Ductile Reinforced Concrete Building Columns Against Brittle Shear Failure Using Fiber-Reinforced Polymer Jackets", Bethlehem (PA): Lehigh University, 2000.
  14. Sause, R., Harries, K. A., Walkup, S. L., Pessiki, S., & Ricles, J. M., "Flexural behavior of concrete columns retrofitted with carbon fiber-reinforced polymer jackets", Structural Journal, Vol.101, No.5, pp.708~716, 2004, doi: 10.14359/13393
  15. You, Y. C., Choi, K. S., & Kim, J., "An experimental investigation on flexural behavior of RC beams strengthened with prestressed CFRP strips using a durable anchorage system", Composites Part B: Engineering, Vol.43, No.8, pp.3026~3036, 2012, doi: 10.1016/j.compositesb.2012.05.030
  16. Shin, J., Jeon, J. S., Kim, J., "Numerical Column Model for Damaged Non-ductile Reinforced Concrete Frame Repaired Using FRP Jacketing System". Earthquake Engineering Society of Korea, Vol.22, No.5, pp.291-298, 2018. https://doi.org/10.5000/EESK.2018.22.5.291
  17. Karayannis, C. G., & Sirkelis, G. M., "Strengthening and rehabilitation of RC beam-column joints using carbon-FRP jacketing and epoxy resin injection", Earthquake Engineering & Structural Dynamics, Vol.37, No.5, pp.769~790, 2008, doi: 10.1002/eqe.785
  18. Priestly, M. J. N., F. Seible, and E. R. Fyfe. "Repair of shear column using fiberglass/epoxy jacket and epoxy injection." Rep. No.93-04, Job No.90 8, 1993.
  19. Vecchio, F. J., & Collins, M. P., "The modified compression-field theory for reinforced concrete elements subjected to shear", ACI J., Vol.83, No.2, pp.219~231, 1986.
  20. Kurama, Y., "Seismic behavior, performance, and retrofit of non-ductile reinforced concrete frame structures", Department of Civil and Environmental Engineering, Lehigh University, 1996.
  21. ACI Committee 318, Building code requirements for reinforced concrete (ACI 318- 63). Farmington Hills (MI): American Concrete Institute; 1963.
  22. Ozcan, O., Binici, B., & Ozcebe, G., "Improving seismic performance of deficient reinforced concrete columns using carbon fiber-reinforced polymers", Engineering structures, Vol.30, No.6, pp.1632~1646, 2008, doi: 10.1016/j.engstruct.2007.10.013
  23. Shin, J., Scott, D. W., Stewart, L. K., Yang, C. S., Wright, T. R., & DesRoches, R., "Dynamic response of a full-scale reinforced concrete building frame retrofitted with FRP column jackets", Engineering Structures, 125, 244-253, doi: 10.1016/j.engstruct.2016.07.016
  24. Saadatmanesh, H., Ehsani, M. R., & Jin, L., "Repair of earthquake-damaged RC columns with FRP wraps", ACI structural Journal, Vol.94, No.206-215, 1997.
  25. Pacific Earthquake Engineering Research (PEER) Center. PEER Ground Motion Database. Berkeley: University of California. <http://peer.berkeley.edu/smcat >.
  26. Shin, J., Kim, J., & Lee, K., "Seismic assessment of damaged piloti-type RC building subjected to successive earthquakes" Earthquake engineering & Structural dynamics, Vol.43, No.11, pp. 1603~1619, 2014, doi: 10.1002/eqe.2412
  27. Lee CS, Hegemier GA, Phillippi DJ. Analytical model for fiber-reinforced polymerjacketed square concrete columns in axial compression. ACI Struct J 2010;107(02):208-17.
  28. Elnashai AS, Papanikolaou V, Lee DH. ZeusNL-A program for inelastic dynamic analysis of structures. IL: MAE Center, University of Illinois at Urbana-Champaign; 2001.