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Geometrical Properties of Tee Section


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Dimensions

h = m, tw = m

bf = m, tf = m

Area

Aw = h·tw m2

Af = (bftwtf m2

A = Aw + Af m2

Centroid

yc = bf/2 m

Sy = Aw·h/2 + Af·(htf/2) m3

zc = Sy/A m

Perimeter

P = 2·(h + bf) m

Second moments of area

Iy_w = Aw·(h2/12 + (zch/2)2) m4

Iy_f = Af·(tf2/12 + (hzctf/2)2) m4

Iy = Iy_w + Iy_f m4

Iz = (tf·bf3 + (htftw3)/12 m4

Polar moment of area

Ix = Iy + Iz m4

Radii of gyration

ry = √Iy/A m

rz = √Iz/A m

rx = √Ix/A m


Substitute