Pregledni rad
https://doi.org/10.13167/2017.15.1
STRUCTURAL ANALYSIS OF A STEEL COLUMN EXPOSED TO A LOCALIZED FIRE
Tonko Faldić
orcid.org/0000-0003-3730-9653
; Fakultet građevinarstva, geodezije i arhitekture, Sveučilište u Splitu
Helder David Craveiro
; ISISE - University of Coimbra, Faculty of Science and Technology, Department of Civil Engineering
Aldina Santiago
; ISISE - University of Coimbra, Faculty of Science and Technology, Department of Civil Engineering
Neno Torić
; Fakultet građevinarstva, geodezije i arhitekture, Sveučilište u Splitu
Sažetak
This paper presents an investigation on the structural analysis of a steel column exposed to a localized fire. Because EN 1991-1-2 does not provide a simplified method to calculate heat transfer to vertical elements, a CFD (Computational Fluid Dynamics) model of a localized fire is developed, based on previously conducted experiments. Furthermore, a heat transfer analysis was performed based on the results of CFD modeling and for the ISO temperature–time curve. Finally, a nonlinear structural analysis of the steel column was conducted for the localized fire scenario, as well as for the ISO temperature–time curve. A comparison between the localized fire and ISO fire exposure points indicates that localized fires can cause earlier failure of a column, depending on the level of external load.
Ključne riječi
fire modeling; localized fire; heat transfer; structural analysis; nonlinear analysis; steel
Hrčak ID:
191453
URI
Datum izdavanja:
23.12.2017.
Posjeta: 1.190 *