G.18.1.4 Force Envelopes
Force envelopes of the member forces FX (axial force), FY (Shear-y), and MZ (moment about local z-axis, i.e., strong axis) can be printed for any number of intermediate sections. The force values include maximum and minimum numbers representing maximum positive and maximum negative values.
|FX||A positive value is compression, and negative tension.|
|FY||A positive value is shear in the positive y-direction, and negative in the negative y-direction.|
|FZ||Same as above, except in local z-direction.|
|MZ||A positive moment will mean a moment causing tension at the top of the member. Conversely, a negative moment will cause tension at the bottom of the member. The top of a member is defined as the side towards positive local y-axis.|
|MY||Same as above, except about local y axis.|