A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SIMPLE FIRE DESIGN OF COLD‐FORMED STEEL C‐SECTION BEAMS WITH LATERAL–TORSIONAL BUCKLING
Fire design rules for cold‐formed steel beams are commonly based on past research on hot‐rolled steel beams. Hence this paper present a methodology for calculating the fire response of unrestrained cold‐formed steel C‐section flexural members, based on guidelines of EN1993‐1.2 for fire design of steel beams and on results of experimental and numerical studies. European fire design rules were found to be unsafe or over‐conservative, depending on their relative slenderness and serviceability load applied on the beams. Therefore, new formulae for lateral–torsional buckling of unrestrained cold‐formed steel C‐section flexural members, which approximate better their real behaviour in case of fire, are proposed. Comparison with numerical moment capacities demonstrates the accuracy of the new design methodology.
SIMPLE FIRE DESIGN OF COLD‐FORMED STEEL C‐SECTION BEAMS WITH LATERAL–TORSIONAL BUCKLING
Fire design rules for cold‐formed steel beams are commonly based on past research on hot‐rolled steel beams. Hence this paper present a methodology for calculating the fire response of unrestrained cold‐formed steel C‐section flexural members, based on guidelines of EN1993‐1.2 for fire design of steel beams and on results of experimental and numerical studies. European fire design rules were found to be unsafe or over‐conservative, depending on their relative slenderness and serviceability load applied on the beams. Therefore, new formulae for lateral–torsional buckling of unrestrained cold‐formed steel C‐section flexural members, which approximate better their real behaviour in case of fire, are proposed. Comparison with numerical moment capacities demonstrates the accuracy of the new design methodology.
SIMPLE FIRE DESIGN OF COLD‐FORMED STEEL C‐SECTION BEAMS WITH LATERAL–TORSIONAL BUCKLING
Laím, Luís (author) / Rodrigues, João Paulo C. (author)
ce/papers ; 1 ; 573-590
2017-12-01
18 pages
Article (Journal)
Electronic Resource
English
fire , steel , cold‐formed , beams , buckling , design , finite element analyses
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