STRUCTURAL ANALYSIS OF A STEEL COLUMN EXPOSED TO A LOCALIZED FIRE

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...

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Bibliographic Details
Main Authors: Tonko Faldić, Helder David Craveiro, Aldina Santiago, Neno Torić
Format: Article
Language:English
Published: Faculty of Civil Engineering Osijek 2017-01-01
Series:e-GFOS
Online Access:http://e-gfos.gfos.hr/app/storage/protected/22-12-2017-18-13-03-paper-1-faldic.pdf
Description
Summary: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.
ISSN:1847-8948