C-G6G6 Doubly symmetric and singly symmetric members subjected to minor-axis shear

The minor-axis shear strength of I-shaped members and channel flanges is the shear yield strength if flange slenderness, $b_{f} / 2 t_{f}$ for I-shapes or $b_{f} / t_{f}$ for channels, does not exceed the limit $1.10 \sqrt{k_{v} E / F_{y}}$, or the shear buckling strength, otherwise. Because shear post-buckling strength is not included for these cases due to lack of experimental verification, the shear buckling coefficient, $C_{v 2}$, from Section G2.2 is used. The plate buckling coefficient, $k_{v}$, is 1.2 due to the presence of a free edge.

The maximum plate slenderness of all rolled shapes is $b_f/t_f=b_f/2t_f=13.8$. The lower bound of $1.10\sqrt{k_vE/F_y}$, computed using $F_y=100\mathrm{\;ksi}$, is $1.10\sqrt{1.2(29,000\mathrm{\;ksi})/100\mathrm{\;ksi}}=20.5$

The maximum plate slenderness does not exceed the lower bound of the yielding limit; therefore, $C_{v 2}=1.0$, except for built-up shapes with very slender flanges.