Node Specification dialog
Used to specify rigid links or specialized linkages in the structure. This facility can be used to model special structural elements such as ties or a floor diaphragm which makes the floor rigid for in-plane movements. The process is to select a node to act as the control and then degrees of freedom for which the dependent nodes are linked to the control.
Opens when Node is clicked on the Specifications - Whole Structure dialog.
It is called as such because the displacements of the dependent node will be based on the displacement of this "control" node. From the drop-down list, select the node which should serve as the control node.
Floor Diaphragm tab
|Floor Level group||
Select one of the options as the method to define the floor level of the diaphragm.
Used when the YRange option is selected.
|Control Node Information group||
Select the method used to define the Control node of the diaphragm.
|Define Floor Range||Set this option to define the floor range as a XZ range of coordinates or by manually selecting coordinates.|