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002574
2019-03-05

Question

I am performing an analysis according to General Method 6.3.4 EN 1993‑1‑1 and have activated the addition "Adapted Method According to Naumes". The critical factor α*crit is displayed in red. Should I be worried?

Answer:

Not at all. If the value of alpha*crit (the critical buckling value without torsional stiffness) is displayed in red and thus amounts to "0", there is no reduction of the imperfection factor (European lateral-torsional buckling line). The basic value for the imperfection factor is used.

Critical Factor alpha*crit for General Method and Adapted Method According to Naumes
Critical Factor alpha*crit for General Method and Adapted Method According to Naumes
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