Steel Column Design (AISC 360)

Design W-shape columns for flexural buckling, slenderness, and P-M interaction per AISC 360-22

AISC 360-22Chapter E CompressionP-M InteractionSlenderness Check

Calculation results are decision-support tools. The design engineer must review and verify all results independently.

Code

AISC uses the W-shape database directly. EC3 / IS 800 / Compare All also work with picker or manual section input.

Input Mode

W-Shape Designation

Unbraced Length L_x (m)

Unbraced Length L_y (m)

K_x (Strong Axis)

K_y (Weak Axis)

K = 1.0 for pinned-pinned, 0.65-0.80 for fixed-fixed, 2.0-2.1 for cantilever. Per AISC Commentary Table C-A-7.1.

Axial Load P_u (kN)

Factored compressive axial load (LRFD). Enter 0 for combined flexure only.

Moment M_ux (kN·m)

Moment M_uy (kN·m)

Set to 0 for pure compression. Non-zero values trigger P-M interaction check per AISC H1.1.

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Select a W-shape, set K-factors and loads, then click Design Column to see AISC 360 results.