Toward A More Comprehensive Approach for Design Using Buckling Analysis

摘要

This paper discusses a comprehensive approach for the design checking of structural steel members and their bracing systems via the use of buckling analysis combined with appropriate column or beam stiffness reduction factors. The stiffness reduction factors are derived from the AISC column and lateral torsional buckling strength curves. The resulting analysis provides a direct check of the member design resistance without the need for separate checking of the underlying Specification limit state equations. In addition, it can be used to directly evaluate stability bracing stiffness requirements. The paper presents the stiffness reduction factor equations for both columns and beams, and explains how these factors can be incorporated into a buckling analysis calculation. The paper closes with a representative beam design example.