Use this dialog to specify imposed displacements for structure support nodes.
U
Defines the displacement along the X, Y, or Z axis of the coordinate system.
R
Defines the rotation around the X, Y, or Z axis of the coordinate system.
Load treated as
Specifies if the load should be treated as a displacement, a velocity, or an acceleration.
Note: The imposed velocity or acceleration on a supported node can be used in the time history analysis only; this type of load has no effect in the static analysis.