How to model stacked beams using Rigid Links
Simple specify the member “Type” as “Rigid Link” to create a member that acts as a Rigid Link. When this is done you will see that the rigid link is drawn in light grey color with a “R” symbol beside it:
Rigid Links can be useful to define rigid connections between structures that involve stacked beams or members. They are often thought of as imaginary stiff links that join members so they can translate and/or rotate together. A rigid link can also be used to manually control for member offsets. Additionally you can change the fixity/releases in the rigid link to control what forces and effects it has on what it connects to.