CHCalcHandbook

T Section — Flange Up

Section Properties · Tee Section · A, C, I, S, r, Z, J
1

Geometry

Flange width bf, flange thickness tf, overall depth h, web thickness tw
The centroid lies close to the flange, so Sx,bot (web tip) is smaller than Sx,top and usually governs the stress. The plastic neutral axis (PNA) does not coincide with the centroid.
2

Geometric properties

Area, centroid, moment of inertia, elastic section modulus, radius of gyration
3

Plastic modulus and torsion

Zx, Zy, shape factor, J
4

Principal axes

Ixy, θ, I₁, I₂