Journal of the Regional Association of Architectural Institute of Korea (대한건축학회연합논문집)

The Regional Association of Architectural Institute of Korea (대한건축학회지회연합회)
권호 표지

Fire-Protection Method to Improve the Fire-Resistance Capacity of Near-Surface-Mounted Fiber Reinforced Polymer

표면매립 보강된 FRP의 내화성능 향상을 위한 내화보강방안에 관한 연구

  • 임종욱 (한국교통대학교 건축공학과 대학원) ;
  • 서수연 (한국교통대학교 건축공학과)
  • Received : 2017.11.24
  • Accepted : 2018.02.20
  • Published : 2018.02.28
⟨ Previous Next ⟩

Abstract

Recently, retrofit by using fiber reinforced polymer (FRP) has been widely applied to building structure. However, the retrofit contribution of FRP may be disappeared under high temperature such as fire loading because of the low glass transition temperature of FRP and epoxy. In this manner, this paper presents a research for improving fire resistant capacity of FRP retrofit system. Heat transitions of two types of fire proofing materials (board type and spray type) were verified by performing high temperature loading test and heat transfer analysis. As a result, it was found that the board made of calcium silicate and alumino silicate had higher resistance on the heat transition than the sprayed finish. By using the analytical approach, it is possible to properly estimate the heat transfer of fire-proofing with board under high temperature environment for fir-resistance design of reinforced FRP.

Keywords

Acknowledgement

Supported by : 국토교통부

References

  1. Seo, Soo-Yeon, Choi, Ki-Bong, Kwon, Yeong-Sun, (2012), Retrofit Capacity of Near-Surface-Mounted RC Beam by using FRP Plate, Journal of The Korea Institute for Structural maintenance and Inspection, 16(1), 18-26. https://doi.org/10.11112/jksmi.2012.16.1.018
  2. Seo, Soo-Yeon, Feo, Luciano, Hui, David, (2013a), Bond Strength of Near-Surface-Mounted FRP Plate for Retrofit of Concrete Structures, Composite Structures, l95, 719-727.
  3. Seo, Soo-Yeon, Kim, Jeong-Hun, (2013b), Bond capacity of near- surface-mounted CFRP plate to concrete under various temperatures, Journal of the Korea Institute for Structural Maintenance and Inspection, 17(4), 75-83. https://doi.org/10.11112/jksmi.2013.17.4.075
  4. Seo, Soo-Yeon, Choi, Ki-Bong, Kwon, Yeong-Sun, Lee, Kang-Seok, (2016a), Flexural Strength of RC Beam Strengthened by Partially De-bonded Near-Surface-Mounted FRP Strip, International Journal of Concrete Structures and Materials, Korea Concrete Institute, 10(2), 149-165. https://doi.org/10.1007/s40069-016-0133-z
  5. Seo, Soo-Yeon, Lee, Moon Sung, Feo, Luciano, (2016b), Flexural Analysis of RC Beam Strengthened by Partially De-bonded NSM FRP Strip, Composite Part B, 101(15), 21-30. https://doi.org/10.1016/j.compositesb.2016.06.056
  6. Architectural Institute of Korean (2016), Korea Building Code (KBC), Ki-Moon-Dang.
  7. Blontrock, H., Taerwe L., Vandevelde, P. (2001). Fire testing of concrete slabs strengthened with fibre composite laminates, Proceeding of 5th International Conference on Fibre Reinforced Plastics for Reinforced Concrete Structures, Telford, Cambridge, U.K., 547.556.
  8. Foster, S. K., Bisby, L., A., Eng, P,. (2008), Fire survivability of externally bonded FRP strengthening system, Journal of Composites for Construction, 12(5), 553-561. https://doi.org/10.1061/(ASCE)1090-0268(2008)12:5(553)
  9. Palmieri, A., Matthys S., Taerwe, L., (2011), Bond Behavior of NSM FRP Bars at Elevated Temperatures, Proceeding of First Middle East Conference on Smart Monitoring, Assessment and Rehabilitation Civil Structures, 1-7.
  10. Moon, Do-Young, (2013), Critical Temperature for Inter-Laminar Shear Strength and Effect of Exposure Time of FRP Rebars, Journal of Architectural Institute of Korean, 25(1), 45-51.
  11. Yoen, Jae-Young, Seo, Soo-Yeon,. (2014). Evaluation on the thermal resistance capacity of fire proof materials for improving fire resistance of near-surface-mounted FRP in concrete, Journal of the Korea Institute for Structural Maintenance and Inspection, 18(5), 51-58. https://doi.org/10.11112/jksmi.2014.18.5.051
  12. Lee Myung-Ho, Park Hyung-Cheol, Oh Bo-Hwan, (2008), Fire Resistance of Carbon Plate Reinforced Concrete Members Strengthened by Insulating Materials, Journal of Architectural Institute of Korean, 27(2), 141-148.
  13. Yeon, Jae-Young, (2014), Improvement of Fire Resistance of Reinforced Concrete Member Strengthened by FRP, Master thesis, Korea National University o Transportation
  14. Midas IT, (2009), FEA Manual Analysis & Algorithm Part : Algorithm.