Reference Type:  Journal Article
Record Number: 1
Author: Maślak, M.
Year: 2006
Title: Simplified approach to evaluation of steel beam-column fire resistance
Journal: Advanced Steel Construction
Volume: 3
Issue: 1
Pages: 18
Start Page: 512
Short Title: Simplified approach to evaluation of steel beam-column fire resistance
DOI: 10.18057/IJASC.2007.3.1.6
Keywords: beam-column; fire; temperature; fire resistance; thermal deformation
Abstract: The approach, presented in this paper, allows a designer to assess the value of steel member fire resistance if unlimited thermal deformations are restrained. The beam analysed in the example is subject to bending in persistent design situation; whereas, under the influence of fire temperature, additional compression force occurs. The fire resistance of structural element depends on the degree of restraints. Large flexural stiffness of columns which bound the beam leads to the relatively small value of beam fire resistance. Alternatively, if their stiffness is lower (deformability is greater) the reduction of member fire resistance in relation to the beam with fully unrestrained thermal deformations is also softer. Results obtained in the presented analysis should be interpreted only as an approximation of real values. More accurate solutions can be reckoned only if rheological effects, particularly creep of steel, are taken into account.
Author Address: Assistant Professor, Department of Civil Engineering, Cracow University of Technology, 31-155 Cracow, Warszawska 24, Poland