Improved Design Assessment of Lateral Torsional Buckling of I-Section Members [N23A]

Recent research to accurately compute the LTB strength of flexural members has resulted in efficient computational buckling procedures that can be implemented within today's design procedures. Such methods are able to account more rigorously for member inelasticity, moment gradient effects, load height effects, bracing effects and end restraint effects from connection details and member continuity across braced points. Employing experimental databases used in the 2003 and 2005 AASHTO and AISC Specification developments, this session will take a fresh look at design strength predictions using advanced software capabilities, providing new knowledge regarding the LTB limit state and the practical benefits of using such capabilities.

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