0 Votes

Point support (Geometry)

Last modified by Iwona Budny Bjergø on 2022/01/18 12:22

 Point support propertyDescription
Modules where available1585144692288-753.png 1585144734520-453.png 1585144749045-948.png 1585144766585-800.png 1585144809846-685.png   
Motion component directionParallel with Global Z axis in 1585144698486-947.png
 Arbitrary direction in Global XY plane in 1585144740982-523.png 1585144752883-322.png 
 Arbitrary direction in 1585144772035-285.png 1585144816799-559.png 
Rotation component directionArbitrary direction in Global XY plane in 1585144703612-442.png
 Not available in 1585144729218-540.png 1585144756560-230.png 
 Arbitrary direction in 1585144787830-313.png 1585144802792-943.png 
Geometry- (insertion point)
Available analysis resultsReaction forces and moments
Load can be assignedPoint support motion load 1585144712975-627.png
Default Short CommandSPT

Definition steps

warning.pngWhile support definition, keep in mind not to create unstable situation! For example in 3D modules, model a hinged support under a wall with hinged line support added to a wall at its rigid edge or with rigid line support added to a wall at its hinged wall. In case of unstable situation the program sends a warning message during calculation.


Figure: Modeling same wall support condition in two ways

  1. If needed (and available in the current FEM-Design module), set a proper position for the working plane.
  2. Start the required support command from 1585144918223-757.png  tabmenu and choose 1585144927340-296.png  Define.
  3. In case of single Support, choose the displacement type you would like to be define:
    • 1585144934118-530.png  Motion
    • 1585144940508-160.png  Rotation
  4. Set the support properties as mentioned before in the applied support’s Default settings dialog. See the settings possibilities and options at Properties (Non-Linear Behaviors).
    In the settings dialog of a curved line support, the support direction has to set fixed or variable along the support’s reference line.
     Figure: Possible support directions in case of curved reference line
  5. Define the required support component direction for the single Support or set the reference system for the Support group.
  6. Choose a geometry definition method for the support’s reference point/line/region.
  7. Define the support in the model view based on the chosen geometry method.

Optional steps:

  1. Modify the geometry with the Edit menu commands valid for line/region elements.
  2. Modify the support properties with the 1585147816254-924.png  Properties tool of the support’s tool palette.
  3. Set the display settings of supports at Settings > All > Display > Support.1585147826068-830.png
    warning.pngLabel” represents the supports’ ID number generated by analysis/design calculation or by clicking Refresh numbering (Tools menu).

    Rotation support is displayed with symbol strongly different from motion representation.

    Figure: Typical symbols by support types

    light.pngSupport groups can also be separated from the single Supports by displaying their Local system.


    Figure: Local system separates a one-component Support group from a same directional single Support

  4. The supports are stored on “Supports” Object layers. At layer settings, the default color of the single Supports and pen width of all support types can be set. The color and the symbol line type (e.g. dotted) of selected supports can be modified by Edit > Properties > Change appearance.