Section Properties — I / H Section

1

Geometry

Flange width b_f, flange thickness t_f, overall depth h, web thickness t_w

J is calculated with the thin-walled approximation as Σbt³/3 (fillet effects neglected). With unequal flanges the centroid shifts away from mid-depth, so S_x,top ≠ S_x,bot.

2

Geometric properties

Area, centroid, moment of inertia, elastic section modulus, radius of gyration

3

Plastic modulus and torsion

Z_x, Z_y, shape factor, J

4

Principal axes

I_xy, θ, I₁, I₂