TR.19.3 Angle

Figure 1. Angle section
 property-spec = D WF TF R AY AZ
D Depth of angle (i.e., length of the leg along the local y-axis)
WF Width of angle (i.e., length of the leg along the local z-axis)
TF Thickness of angle leg
R Radius of gyration about principal axis, shown as r(Z-Z) in the AISC manual (this must not be zero)
AY Shear area in local y-axis. If zero, shear deformation is ignored in the analysis.
AZ Shear area in local z-axis. If zero, shear deformation is ignored in the analysis.