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Monosymmetry section constant

Monosymmetry section constant

(OP)
I need some help in calculating the monosymmetry constant for a unique cold foremd steel section.
SO far all i can find is the formula for it which involves a rather nasty looking intergration.
Cheers
Replies continue below

RE: Monosymmetry section constant

From ‘The Behaviour and Design of Steel Structures’ by NS Trahair and MA Bradford, Chapman and Hall, 1988.

An approx. method is given where the monosymmetry constant for a monosymmetric I-beam is;

β x = 0.9*h*(2*ρ m – 1)*(1-Iy^2/Ix^2)

Where;
ρ m = Iyc/ Iy

And;
Iyc is the section minor axis second moment of area of the compression flange.

And;
h is the distance between the centroids of the compression and tension flanges.

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