This paper presents an experimental investigation of the inelastic behavior of wide-flange structural steel members under combined time-dependent bending and torsional loading. A quantitative evalaution of energy dissipation capacity after occurrence of local buckling was made. Test results show that a W6x15 section with a d/bf ratio equal to one performed better than a W8x10 section, which has a larger d/bf ratio, in resisting combined bending and torsion. Test results also show that the presence of torsion significantly affects a member's bending-moment carrying capacity.
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