Influence of Plate Stiffener Geometry on LTB Capacity

Contributing USMA Research Unit(s)

Civil and Mechanical Engineering, Center for Innovation and Engineering


The standard analytical equations for elastic and inelastic lateral-torsional buckling assume a connection that permits rotation about the strong axis (as well as warping), but prevents twist about the longitudinal axis. The plate stiffener, commonly called a shear tab, is idealized as such a connection. In this paper, the influence of plate stiffener geometry on the lateral-torsional buckling capacities of various wide-flange beams is studied, using high-fidelity computer simulation. Preliminary results indicate that plate stiffener geometries have a significant effect on beam LTB capacity.

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Conference Proceeding

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