- Title
- Numerical study of the fire resistance of steel columns in axial compression and uniform bending
- Creator
- Talamona, Didier
- Relation
- 2009 Structures Congress. Don't Mess with Structural Engineers: Expanding Our Role: Proceedings of the 2009 Structures Congress (Austin, TX 30 April - 2 May, 2009) p. 650-659
- Publisher Link
- http://dx.doi.org/10.1061/41031(341)72
- Publisher
- American Society of Civil Engineers
- Resource Type
- conference paper
- Date
- 2009
- Description
- This paper investigates the behavior of steel beam‐columns loaded in axial compression and uniform bending at elevated temperatures. The finite element code SAFIR has been used to predict the failure temperature under a determined load (M+N) assuming in a first case that the temperature within the column is uniform and in a second case that a longitudinal thermal gradient exist. The failure loads have then been interpolated and extrapolated to obtain the failure loads at 400, 500, 600, 700, 800 and 900°C. The results obtained under uniform temperature have compared with two analytical formulations, i.e. the one available from the Eurocode 3 part 1.2 (EC3) and the one established after the Buckling Curves in Case of Fire (BCCF) research project. The results of this comparison show that the BCCF formulation provides a slightly more accurate ultimate load when compared to numerical results than the one obtained with the EC3. It has been found that the ultimate load decreases in a similar way as the yield strength coefficient (Kyθ) as the temperature increases. The calculations performed with a longitudinal thermal gradient show that the evolution of the ultimate load as function of temperature follows a similar pattern than the one observed under uniform temperature.
- Subject
- numerical analysis; fire resistance; steel; bending; beam columns; compression
- Identifier
- uon:8990
- Identifier
- http://hdl.handle.net/1959.13/919822
- Identifier
- ISBN:9780784410318
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