In essence lateral buckling occurs under traverse load or at critical loads.
2.
A column with a cross section that lacks symmetry may suffer torsional buckling ( sudden twisting ) before, or in combination with, lateral buckling.
3.
Wood or steel floor frames usually include a rim joist around the perimeter of a system of floor joists, and often include bridging material near the center of a span to prevent lateral buckling of the spanning members.