Statistical Evaluation Of The Lateral-torsional Buckling Resistance Of Steel I-beams, Part 2: Variability Of Steel Properties

摘要

The statistical evaluation of codified resistance models is a crucial step to ensure that the derived reliability targets are achieved. Experimental tests are seldom sufficient to provide a statistically representative sample so that nowadays numerical tests are accepted provided they accurately reproduce experimental results. The evaluation of the influence of the variability of steel properties on the lateral-torsional resistance of steel beams is presented in this paper, leading to the assessment of the required partial safety factor γ_(M1), to ensure compliance with the EN 1990 reliability criteria. Results confirm that the choice of γ_(M1) = 1.0 is appropriate.