Properties of the User Defined loads are entered in the Story Forces dialog.

• Story - Indicates the level at which the force acts.
• Diaph. # - Indicates the diaphragm at which the force acts.
• Force - Indicates the magnitude of the force.
• Direction - Specifies the direction of the force measured in degrees. 0 indicates a force acting along the X-Axis. 90 indicates a force acting along the Y-Axis.
• X - The X-Coordinate where the force acts.
• Y - The Y-Coordinate where the force acts.

Seismic Story Forces

X and Y are applicable for only rigid diaphragms. Eccentricities, (ex and ey) are only applicable for semirigid diaphragms. Note that (ex and ey) are eccentricities defined along X and Y-directions, respectfully and they are measured from diaphragm's center of mass.

Wind Story Forces

X and Y are applicable for only rigid diaphragms. Windward/Leeward percent (WF and LF) and eccentricities, (ex and ey) are only applicable for semirigid diaphragms. Note that (ex and ey) are eccentricities defined along X and Y directions, respectfully and they are measured from center of exposure.

Click the OK button to save this load case. Click Cancel to return to the previous dialog box without saving this load case.