FIRE DESIGN OF STEEL BEAMS WITH SLENDER CROSS-SECTION, The influence of loading
AbstractThe present paper addresses the study of laterally unrestrained steel beams with slendercross-sections for the case of fire with special focus on the influence of loading. A numerical investigation of several beams submitted to triangular and bi-triangular end-moment distribution and uniformly distributed loads is carried out at elevated temperatures usingshell finite elements. The results are compared with the existing simplified beam design rules of Part 1.2 of Eurocode 3 and recent developments on the subject, as well as the utilization of the factor “f” which was developed to take into account the non-uniform bending diagrams but for stocky cross-sections (Class 1 and 2).
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