1 Cv

ky = 5 + 5/(a/h)2 (ky shall be taken as 5.0 if a/h exceeds 3.0 or [260/(h/iw)]2, whichever is smaller)

Aw = dtw (where d is the section depth and tw is the web thickness)

Fyw = web yield stress

Cv = shear coefficient, calculated as follows:

Range of h/tw

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