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Buckling of an axially restrained steel column under fire loading
ID Hozjan, Tomaž (Author), ID Planinc, Igor (Author), ID Saje, Miran (Author), ID Srpčič, Stane (Author)

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PID: 20.500.12556/rul/f629a3fc-0e23-45e5-87be-1325bb272695

Abstract
Analytical procedure, based on the linearized stability analysis, is presented for the determination of the buckling load and the buckling temperature of a straight, geometrically perfect, axially loaded steel column subjected to an increasing temperature simulating fire conditions. The nonlinear kinematical equations and the nonlinearity of material are considered. The stress strain relation for steel at the elevated temperature and the rules for reduction of material parameters due to increased temperature are taken from European standard EC 3. Theoretical findings are applied in the parametric analysis of a series of Euler's columns subjected to two parametric fires. It is found how the slenderness of the column, the material nonlinearity, the temperature dependence of material parameters, and the stiffness of restraints at supports effect the critical temperature. While these parameters have major influence on the critical temperature, they have no effect on the shape of the buckling mode.

Language:English
Keywords:steel columns, inelastic buckling, critical temperature, fire analysis, high temperatures, Reissner beam
Typology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Publisher:World Scientific Publishing
Year:2011
Number of pages:Str. 451-472
Numbering:Letn. 11, št. 3
PID:20.500.12556/RUL-32131 This link opens in a new window
UDC:624.07
ISSN on article:0219-4554
DOI:10.1142/SO219455411004245 This link opens in a new window
COBISS.SI-ID:5405537 This link opens in a new window
Publication date in RUL:10.07.2015
Views:4356
Downloads:1092
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Record is a part of a journal

Title:International journal of structural stability and dynamics
Publisher:World Scientific
ISSN:0219-4554
COBISS.SI-ID:517367321 This link opens in a new window

Secondary language

Language:English
Keywords:jekleni ukloni, nelinearni uklon, kritična temperatura, požarna analiza, povišane temperature, Reissnerjev nosilec, nosilci

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