Abstract
Although the fire resistance of various steel profiles has been predicted and presented in the literature, the effect of local buckling requires further research. This comprehensive study discusses this effect on the fire resistance of steel “I” slender cross-sections for uniform compression and simple bending cases. A numerical modelling analysis with SAFIR considering the ABNT NBR 14.323:2013 and Eurocode 3 Part 1-2 (2005) design rules is conducted. For the catalogue profiles, the standards are conservative for columns and beams for a temperature range between 600.00°C and 800.00°C and 400.00°C and 800.00°C, respectively. However, the results determined with the standards may be unsafe. The need for an improvement in the precision of the current standards is also discussed.
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