Design of Cantilever Steel Beams: Refined Approach

Proposed design model of overhanging C-beams

“…/r t ), the load position and the tip boundary conditions. Essa and Kennedy [6] proposed effective length factors for doublysymmetric built-in cantilevers as a function of torsional beam parameter and presented an interaction method for determining the elastic critical moment for overhanging beams for a variety of loading conditions.…”

Beams

“…Solutions in the form of tables, charts, and approximate formulas for the elastic lateral-torsional buckling load of cantilever beams are available for a variety of loading and boundary conditions (Poley, 1956;Timoshenko and Gere, 1961;Nethercot and Rockey, 1972;Nethercot, 1973b;Trahair, 1983bTrahair, , 1993Essa and Kennedy, 1994;Andrade et al, 2007). Buckled shapes for unbraced cantilever beams show that the tension flange translates farther than the compression flange.…”

“…Essa and Kennedy (1994) have developed equations for the buckling capacity of a cantilever segment with a concentrated load at the tip. It consists of a cantilever segment on at least one end and a backspan.…”

“…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.…”

Lateral buckling of overhanging crane trolley monorails

“…Although buckling of overhanging beams in general has received attention in the research literature [4][5][6][7], the special case of crane trolley monorails has only been investigated by Tanner [8]. In Tanner's study [8] a generic single overhanging monorail shown in Fig.…”