C-G4G4 Rectangular HSS, box sections, and other singly and doubly symmetric members

The shear strength of rectangular HSS and box-section webs is taken as the shear yield strength if web slenderness, $h / t_{w}$, does not exceed the yielding limit, or the shear buckling strength. Post-buckling strength from Section G2.1 is not included due to lack of experimental verification.