zone gridpoint force-reaction command

Syntax

zone gridpoint <keyword> <range>

Primary keywords:

force-reaction    force-reaction-x    force-reaction-y    force-reaction-z

For each gridpoint in the range, in each of the the specified degree-of-freedoms, checks if the gridpoint is fixed in that direction. If it is, then the fixity condition is removed and an applied force is created (as with zone gridpoint fix force-applied) that is equal and opposite to the reaction force present. Assuming the model was in equilibrium, the gridpoint will have removed the fixity condition and still be in equilibrium.

force-reaction

Create reaction forces in all degrees-of-freedom.

force-reaction-x

Create reaction forces in x-direction.

force-reaction-y

Create reaction forces in y-direction.

force-reaction-z (3D only)

Create reaction forces in z-direction.