On the Local Buckling of Steel ``I{''} Profiles in a Fire Situation

Autor(es)

Calobrezi, Gian Carlo ^[1] ; Silva, Valdir Pignatta ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Polytech Sch, Civil Engn Bldg, Ave Prof Luciano Gualberto, BR-05505010 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: FIRE TECHNOLOGY; v. 57, n. 1, p. 415-438, JAN 2021.
• Citações Web of Science: 0

Resumo

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 degrees C and 800.00 degrees C and 400.00 degrees C and 800.00 degrees 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. (AU)

• Processo FAPESP: 15/21602-4 - Análise avançada de estruturas em situação de incêndio
• Beneficiário: Valdir Pignatta e Silva
• Modalidade de apoio: Auxílio à Pesquisa - Regular