Steel Buildings in Europe

Part 8: Design Software – Section Capacity 8 - 5 Buckling length The calculated resistance that is displayed is the design value of the lateral torsional buckling (LTB) resistance in kNm. The figure shows a cross-section of the selected section, to scale, and the main geometric properties. 2.5 N-M (combined axial force and bending moment) Worksheet The following data may be selected: Section type Section data is included for the following section types (profiles):  IPE  HD  HE  HL Section All the standard sections within each section type are available for selection from the drop-down menu. Beam grade The steel grade for the beams may be selected from the following:  S235  S275  S355  S460 The internal moments and forces  Maximum bending moment about the major axis, M y,Ed,max  Minimum bending moment about the major axis, M y,Ed,min  Maximum bending moment about the minor axis, M z,Ed,max  Minimum bending moment about the minor axis, M z,Ed,min  Axial force, N Ed Buckling lengths  Major axis buckling length, L y  Minor axis buckling length, L z  Torsional buckling length, L T  Lateral torsional buckling length, L LTB Choice of Annex A or Annex B The result that is displayed is the unity factor from the interaction equations 6.61 and 6.62 from EN 1993-1-1 and according to the chosen National Annex.