ORBi: Talamona D. - Comparative study of analytical formulae for the fire resistance of steel beam-columns

Reference : Comparative study of analytical formulae for the fire resistance of steel beam-columns


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Materials science & engineering
	To cite this reference:	http://hdl.handle.net/2268/15082

Title :	Comparative study of analytical formulae for the fire resistance of steel beam-columns
Language :	English
Author, co-author :	Talamona, D. [ > > ]
	Castagne, S. [ > > ]
	Lopes, N. [ > > ]
	Vila Real, P. M. M. [ > > ]
	Franssen, Jean-Marc [Université de Liège - ULg > Département Argenco : Secteur SE > Ingénierie du feu >]
Publication date :	2008
Main document title :	Proceedings of the Fifth International Conference Structures in Fire
Author, co-author :	Kodur
	Tan
Pages :	101-112
On invitation :	No
Audience :	International
ISBN :	978-981-08-0767-2
Event name :	Fifth International Conference Structures in Fire
Event organizer :	Nanyang Techn. University
Keywords :	[en] fire resistance ; steel ; column ; simple model ; design equation ; Eurocode ; beam-column
Abstract :	[en] This paper investigates the difference between the buckling formulae published in the Eurocode 3 part 1.2 and the recommendations made in the final report of the Buckling Curves in Case of Fire (BCCF) research project. This study compares the critical temperatures obtained with both formulations to assess the impact on the fire endurance of steel columns subjected to axial compression and bending. An extensive comparison of the ultimate temperatures obtained with both formulations has been performed (382 profiles, buckling about the strong and weak axis, 12 column lengths, 6 M/N ratios and uniform and triangular bending moment distributions). Failure temperatures between 400°C and 860°C have been considered. The formulations are also compared with Finite Elements (F.E.) calculations performed for a S235 HEA 200 at 600ºC. This analysis shows that for buckling about the strong axis the BCCF method is better than the EC3 but for buckling about the weak axis the EC3 predicts failure temperatures closer to the F.E. model than the BCCF formulation. Finally, the ultimate temperatures predicted by the two formulations have also been compared with experimental results from the database SCOFIDAT. This comparison shows that there is no major difference between the two formulations for small and large bending moments. This study concludes that the EC3 and BCCF formulations are generally equivalent and that either formulation can be used.
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/15082

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