대한건축학회논문집 (Journal of the Architectural Institute of Korea)

  • 제39권1호
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  • Pages.225-232
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  • 2023
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  • 2733-6239(pISSN)
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  • 2733-6247(eISSN)
대한건축학회 (Architectural Institute of Korea)
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U형 합성보의 내화성능 및 화재 후 잔존강도에 관한 실험적 연구

An Experimental Study on the Fire Resistance Performance and Residual Strength of U-shaped Composite Beams after Fire

  • 강민정 (한국기술교육대학교 건축공학과) ;
  • 최영한 (한국건설기술연구원) ;
  • 김성배 ((주)더나은구조엔지니어링) ;
  • 김상섭 (한국기술교육대학교 디자인.건축공학부)
  • 투고 : 2022.08.15
  • 심사 : 2022.12.06
  • 발행 : 2023.01.30
⟨ 이전 논문 다음 논문 ⟩

초록

In recent years, interest in fire-resistant structures is also increasing significantly in Korea. Fire resistance structures in Korea are applied based on specification design, but recent research results that can apply performance design have been published through a research project by the Ministry of Land, Infrastructure and Transport. The performance design is already allowed to apply the fire resistance structure performance design of the 'Rules on the Standards for Evacuation and Fire Protection of Buildings, etc'. Therefore, in this study, a fire-resistant spray or paint was applied to the HyFo composite beam, fire resistance performance tests were conducted, and structural performance tests were conducted on the same specimens to evaluate the residual strength after a fire. As a result of the fire resistance test for 3 hours of the specimens to which the fire-resistant spray was applied, the average temperature was found to be less than about 300 ℃ and the maximum temperature was less than about 400 ℃. In addition, as a result of structural performance tests to confirm the residual strength after a fire, it was confirmed that all of them secured the nominal strength or higher. Therefore, it is judged that the structural performance of the composite beam, which has ensured fire resistance performance by applying fire-resistant spray or paint, will not significantly degrade even after the fire for 3 hours.

키워드

과제정보

이 논문은 2022년도 한국기술교육대학교 교수 교육연구진흥과제 지원에 의하여 연구되었음.

참고문헌

  1. Ahn, J. K., & Lee, C. H. (2015). Experimental and Numerical Study of Fire Resistance of Composite Beams, Journal of Korean Society of Steel Construction, 26(2), 143-153 https://doi.org/10.7781/KJOSS.2014.26.3.143
  2. Choi, I. R., Lee, G. R., Park, S. W., Kyung, J. H., & Park, D. W. (2021). Flexural Performance and Beam-Column Connection Structural Performance Tests for Slimflo Composite Beam, Journal of Korean Society of Steel Construction, 33(2), 131-141 https://doi.org/10.7781/kjoss.2021.33.2.131
  3. Choi, S. K., & Kim, S. B. (2008). Structural Performance and Heat Transfer Characteristics of the TSC Composite Beam in Fire, Journal of the Architectural Institute of Korea, 24(1), 27-35
  4. Choi, S. M., & Min, J. K. (2020). Structural Fire Engineering Design Guidebook, Korean Society of Steel Construction
  5. Choi, Y. H., Kang, M. J., Kim, D. B., Kim, S. B., & Kim, S. S. (2021). Evaluation of the Fire Resistance Performance and the Post-Fire Structural Performance for CFT Columns with Square-Shape Steel Tube, Journal of Korean Society of Steel Construction, 33(1), 11-19 https://doi.org/10.7781/kjoss.2021.33.1.011
  6. Kim, J. H., Kang, C. K., & Choi, B. J. (2020). The Effect of Temperature Characteristics Toward Composite Beams with Fire Conditions Subjected Vertical Loading, Journal of Korean Society of Steel Construction, 32(3), 189-200 https://doi.org/10.7781/kjoss.2020.32.3.189
  7. Kim, S. B., Kang, M. J., Cho, S. H., & Kim, S. S. (2015). An Experimental Study on Bending and Seismic Performance of New Concept Hybrid Composite Beam, Journal of the Korean Society of Hazard Mitigation, 15(4), 1-12 https://doi.org/10.9798/KOSHAM.2015.15.4.1
  8. Kim, S. B., Kim, S. S., Ryu, D. S., & Choi, S. K. (2013). Fire Resistance of U-shape Hybrid Composite Beam, Journal of Korean Society of Steel Construction, 25(4), 379-388 https://doi.org/10.7781/KJOSS.2013.25.4.379
  9. Korean Agency for Technology and Standards (2019). Methods of Fire Resistance Test for Elements of Building Construction - General Requirements, KS F 2257-1:2019
  10. Korean Agency for Technology and Standards (2019). Methods of Fire Resistance Test for Elements of Building Construction - Specific Requirements for Beams, KS F 2257-6:2019
  11. Korean Agency for Technology and Standards (2017). Standard Test Method for Compressive Strength of Concrete, KS F 2405:2017
  12. Korean Agency for Technology and Standards (2017). Test Pieces for Tensile Test for Metallic Materials, KS B 0801:2017
  13. Korean Agency for Technology and Standards (2018). Method of Tensile Test for Metallic Materials, KS B 0802:2018
  14. Ministry of Land, Infrastructure and Transport (2019). Korean Design Standard, KDS 41 31 00 : 2019, 4.6.3