FLEXURAL-TORSIONAL BUCKLING OF MONO-SYMMETRICAL I-SECTION BEAM WITH HOLLOW FLANGE
Abstract
This paper presents formulae and procedure to determine geometrical properties of a mono-symmetrical I-section beam with hollow flange; this is an opened-closed section. Then the expressions of flexural-torsional buckling can be applied to obtain critical moments. The comparison of critical moments between the symmetrical I-section and the mono-symmetrical I-section shows the efficiency of the hollow flange.
Keywords: Flexural-torsional buckling; opened-closed section; shear center; sectorial coordinates; warping constant; torsion constant; uniform and non-uniform torsion.
Received: July 22th, 2016, revised: August 5th, 2016, accepted: October 13th, 2016
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