The Structural Engineer > Archive > Volume 66 (1988) > Issues > Issue 23 > Flexural-Torsional Buckling of Monosymmetric Beam-Columns/ Tie-Beams
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Flexural-Torsional Buckling of Monosymmetric Beam-Columns/ Tie-Beams

The paper reviews rerent research developments on elastic flexural-torsional buckling of monosymmetric I-beams and of doubly symmetric and monosymmetric beam-columns/tie-beams. The developments include the introduction of a new set of non-dimensional parameters, which illuminates the buckling behaviour of these types of member and facilitates the derivation of simple design formulae for predicting the buckling capacities. More importantly, the paper extends the recent work to monosymmetric beam-columns/tie-beams under non-uniform moment load cases, including double curvature bending. Approximate out-of-plane buckling formulae describing the stability criteria for such members under common inplane loading conditions are derived. S. Kitipornchai and C.M. Wang