Numerical And Experimental Evaluation Of Lateral Torsional
Buckling Of Beams At Elevated Temperatures
Author(s)
P.A.G. Piloto, P.M.M. Vila Real, J-M. Franssen
Abstract
Numerical and experimental evaluation of lateral
torsional buckling of beams at elevated
temperatures
P.A.G. Piloto', P.M.M. Vila Real*, J.-M. Franssen'
* Mechanical Department, Polytechnic of Bragan^a, Portugal
*Civil Department, University of Aveiro, Portugal
* Civil Department, University of Liege, Belgium.
Abstract
When a beam is bent about its greatest flexural resistance axis it may twist
and move laterally, before it reaches its strength limit. Although this
problem of lateral torsional buckling of steel beams at room temperature is
well known, the same problem at elevated temperature is not.
This paper summarises the results obtained in the scope of a research
project entitled "Lateral buckling of steel I beams under fire conditions",
where a set of 120 experimental and numerical tests were performed on
IPE100 beams, submitted to temperatures varying from 20 °C to 600 °C, to
validate a new proposal for the buckling resistance moment of a laterally
unrestrained be
Keywords
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