Steel and Composite Structures

  • 제6권2호
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  • Pages.159-182
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  • 2006
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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Temperature distribution in a full-scale steel framed building subject to a natural fire

  • Wald, Frantisek (Department of Steel and Timber Structures, CTU Prague, Faculty of Civil Engineering) ;
  • Chladna, Magdalena (Department of Civil Engineering, Technical University) ;
  • Moore, David (BCSA-British Constructional Steelwork Association) ;
  • Santiago, Aldina (Department of Civil Engineering, University of Coimbra) ;
  • Lennon, Tom (Building Research Establishment)
  • 투고 : 2004.11.23
  • 심사 : 2005.09.15
  • 발행 : 2006.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

Current fire design codes for determining the temperature within the structural elements that form part of a complete building are based on isolated member tests subjected to the standard fire. However, the standard time-temperature response bears little relation to real fires and doesn't include the effects of differing ventilation conditions or the influence of the thermal properties of compartment linings. The degree to which temperature uniformity is present in real compartments is not addressed and direct flame impingement may also have an influence, which is not considered. It is clear that the complex thermal environmental that occurs within a real building subject to a natural fire can only be addressed using realistic full-scale tests. To study global structural and thermal behaviour, a research project was conducted on the eight storey steel frame building at the Building Research Establishment's Cardington laboratory. The fire compartment was 11 m long by 7 m wide. A fire load of $40kg/m^2$ was applied together with 100% of the permanent actions and variable permanent actions and 56% of live actions. This paper summarises the experimental programme and presents the time-temperature development in the fire compartment and in the main supporting structural elements. Comparisons are also made between the test results and the temperatures predicted by the structural fire Eurocodes.

키워드

참고문헌

  1. Bravery, P. N. R. (1993), 'Cardington Large Building Test Facility, Construction details for the first building' Building Research Establishment, Internal paper, Watford, p. 158
  2. Buchanan, A. H. (2003), Structural Design for Fire Safety, John Wiley & Sons, Chichester, ISBN 0-471-89060-X
  3. EN 1991-1-2: 2004, Eurocode I: Actions on structures, Part 1-2: General actions - 'Actions on structures exposed to fire'. Final Draft, CEN, European Committee for Standardization, Brussels, April
  4. EN 1993-1-2: 2004, Eurocode 3: Design of steel structures, Part 1.2 General rules 'Structural Fire Design' CEN, European Committee for Standardization, Brussels, stage 49 draft November
  5. EN 1994-1-2: 2004, Eurocode 4: Design of composite steel and concrete structures, Part 1.2 General rules 'Structural Fire Design' CEN, European Committee for Standardization, Brussels, stage 34 draft May
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  8. Moore, D. B. (1995), 'Steel fire tests on a building framed'. Building Research Establishment, Paper No. PD220/95, Watford, p. 13
  9. Moore, D. B., Nethercot, D. A. and Kirby, P. A. (1993), 'Testing steel frames at full scale', The Structural Engineer, 71(23-24), December
  10. Pettersson, O., Magnusson, S. E. and Thor, J. (1976), Fire Engineering Design of Steel Structures. Publication 50. Swedish Institut of Steel Construction, Stockholm. Sweden
  11. Wald, F., Simoes da Silva, L., Moore, D. and Santiago, A. (2004a), 'Experimental behaviour of steel joints under natural fire', in Proc. of the Fifth Workshop on Connections in Steel Structures V Innovated Steel Connections, Amsterdam, The Netherlands
  12. Wald, F., Silva, S., Moore, D. B. and Lennon, T. (2004b), 'Structural integrity fire test' in Proc. of 10th Nordic Steel Construction Conf. (Ed. Danish Steel Institute), 577-588, Copenhagen, Denmark
  13. Wald, F., Silva, S., Moore, D. B., Lennon, T., Chladna, M., Santiago, A. and Benes, M. (2005), 'Experiment with structure under natural fire', New Steel Construction, 13(3), 24-27
  14. Wald, F., Santiago, A., Chladna, M., Lennon, T., Burges, I. and Benes, M. (2003) 'Tensile membrane action and robustness of structural steel joints under natural fire', Part 1 - Project of Measurements; Part 2 - Prediction; Part 3 - Measured data; Part 4 - Behaviour, Internal report, BRE, Watford

피인용 문헌

  1. Column Web Panel at Elevated Temperature vol.46, pp.1, 2010, https://doi.org/10.1007/s10694-009-0094-8
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  15. Simplified robustness assessment of steel framed structures under fire-induced column failure vol.35, pp.2, 2006, https://doi.org/10.12989/scs.2020.35.2.199