Entering in RFEM
A nodal constraint can be entered by using the menu "Insert" → "Model Data" → "Nodal Constraints," or using Project Navigator - Data → "Model Data" → "Nodal Constraints."
There are two types of constraints available for selection: The "Diaphragm Constraint" type couples all degrees of freedom perpendicular to the plane, while the "Equal Condition Constraint" type allows you to determine the constraints individually.