Kovové a dřevěné konstrukce AdMaS


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    Lateral Torsional Buckling of Selected Cross-Section Types
    (Elsevier, 2017-06-29) Bajer, Miroslav; Barnat, Jan; Piják, Jiří
    urrently used methods of solution of Lateral Torsion buckling which are implemented in design codes are based on solution of critical moment. This method can be correctly used only for minimally single symmetric cross sections. Also FEM based numerical models cannot be generally used because of problematic specification of all imperfections. Usually it is very difficult to define all boundary conditions and also effect of loading during the iteration process. The goal of presented research is an experimental and theoretical analysis of selected types of cross-sections of elements subjected to bending with focus on lateral torsional buckling problems. Those experiments are focused on differences between real behaviour of single symmetric cross section and slightly non symmetric cross section.