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STAAD Commands and Input Instructions
Section 5
5-58
5) TF = Thickness of flange
6) IZ = Moment of inertia about local z-axis (usually strong
axis)
7) IY = Moment of inertia about local y-axis
8) IX = Torsional constant
9) AY = Shear area in local y-axis. If zero, shear deformation is
ignored in the analysis.
10) AZ = Same as above except in local z-axis.
Channel
1) AX, 2) D, 3) TW, 4) WF, 5) TF, 6) IZ, 7) IY, 8) IX, 9) CZ,
10) AY, 11) AZ
Y
CZ
Figure 5.6
Angle
1) D, 2) WF, 3) TF, 4) R, 5) AY, 6) AZ
R = radius of gyration about principal axis, shown as r(Z-Z) in the
AISC manual. Must not be zero.