Lateral buckling of overhanging crane trolley monorails

Upper and lower bound solutions for lateral-torsional buckling of doubly symmetric members

“…Park et al [28] examined the effect of continuous top flange bracing on LTB capacity of simply supported and multi-span beams subject to uniformly distributed and concentrated loads based on the four-node plate element within the finite element program MSC/NASTRAN. Using shell analysis, Ozdemir and Topkaya [29] examined LTB capacity of overhanging monorails under various loading and boundary conditions. Based on a shell element solution and the finite difference method, Serna et al [30] proposed a new moment gradient factor for simply supported beams restrained torsionally at both ends and subject to general loads applied at the shear center.…”

Beams

“…Essa and Kennedy (1995) have developed a design method for beams in cantilever-suspended span construction, where secondary framing members provide both lateral and torsional restraints to the top flange of the beam. Tanner (1985), Essa and Kennedy (1994), Ozdemir and Topkaya (2006), and Trahair (2008) provide expressions for calculating the buckling resistance of overhanging monorail beams, where the compression flange is unbraced at the support.…”

Combined web distortional and lateral-torsional buckling of partially restrained I-section beams

“…It is well-known that beams, which have a large flexural rigidity in their loaded plane and a small flexural rigidity in the other plane, such as I-section beams and castellated beams, are prone to web distortional buckling [1][2][3][4][5][6][7][8][9] and/or lateral-torsional buckling [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] depending on lateral restraint conditions and the slenderness of the flanges and web of the beams. The load, at which the buckling occurs, may be considerably less than the inplane load-carrying capacity of the beam.…”

“…Collin et al [3] discussed the lateral-torsional buckling of continuous bridge girders. Özdemir and Topkaya [4] examined the lateral buckling of overhanging crane trolley monorails. Andrade et al [5] studied the lateral-torsional buckling of singly symmetric web-tapered thin-walled I-beams.…”