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When the national code EC-EN is selected, the buckling configurations given in the following paragraphs can be selected. These systems are only used in case of L-sections (Formcode 4).
The following properties are defined:
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iyy |
radius of gyration around yy axis |
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izz |
radius of gyration around zz axis |
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ivv |
radius of gyration around vv axis |
When the option 'Bracing members are sufficiently supported' is activated in the buckling data, the effective slenderness is reduced as follows:
Reference is made to EN 1993-1-1 Annex BB Article BB.1.2 and formula (BB.1).