Limit states design and partial factors γ_(M0) and γ_(M1) in metal Eurocodes

摘要

Overview of values and definitions of material partial factors γ_(M0) and γ_(M1) used in all 20 parts of Eurocode EN 1993 Design of steel structures and in all 5 parts of Eurocode EN 1999 Design of aluminium structures. Applications of γ_(M0) and γ_(M1) partial factors values and their definitions in all clauses of EN 1993. Comparison of safety levels of former Czechoslovak standards (CSN) with current Eurocodes. Proposals for correction of definitions and applications of γ_(M0) and γ_(M1) partial factors in all clauses of EN 1993. Overview and corrections enable more appropriate choice from five official options, aiming to change current value γ_(M1) = 1.0 valid in EN 1993-1-1 for buildings, which were presented at CEN/TC250 SC3 meetings in October 24th 2014 and in March 19th 2015 in Berlin.