Design of Steel Columns for Combined Forces

SYMBOLS

P_r: Required axial force resistance for LRFD or ASD load combinations

P_c: Strength of axial compressive force available according to Section E

M_r: Required bending moment strength for LRFD or ASD load combinations

M_c: current bending moment strength according to Section F

Design for Axial Force and Flexural Moment

• The strength calculation is made by taking into account the combined stresses created in the elements under flexural and axial force.

• The superposition of the stresses only applies to similar stresses.

• The superposition rule does not apply to stability losses.

Design with AISC 360-16

• Equation H1.1 is used for biaxial and single symmetry axis members under the influence of axial compression and flexural moment.

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Example of Column Design with AISC 360-16

Related Topics

• Steel Column Design Settings

• Flexural Buckling Members without Slender Elements per AISC 360-16 with ideCAD

• Torsional and Flexural-Torsional Buckling of Members without Slender Elements per AISC 360-16 with ideCAD

• Effective Length and Effective Length Factor per AISC 360-16 with ideCAD