Steel Frame K Factor Calculation – AISC

The K factor calculations for a two-story rigid steel frame structure according to the specifications in the AISC Steel Construction Manual 360-10. This calculation package determines the effective length factors for column buckling analysis in the major and minor building directions.

The frame consists of:

• IPE400 lower columns
• HE200A upper columns
• HE300A right beam
• IPE300 left beam

Columns are assumed fixed at the base.

K factor calculations performed:

• Summation of beam stiffness per AISC C-C2-1
• Summation of column stiffness per AISC C-C2-1
• Calculation of GA ratio per AISC C-C2-1
• Determination of K factors per AISC table C-C2-1

The provided calculations follow the specifications of the AISC Steel Construction Manual for determining K factors. This complete analysis provides K factors needed for column buckling checks and is ready to use for your steel building project