linking degrees of freedom of a node

[macarojaime]

Hello,

Is there a command to link the DOF of u (solid displacement) and U (fluid displacement) in one node of a Brick8N_u_p_U element?

Does someone have a reference to find this command in Opensees?

I would appreciate any comment.

Thank you,

MARIA JAIME
Doctoral Student
Dept. of Civil and Environm. Eng.
University of Pittsburgh