Define analysis model rules

Tekla Structures
2021
Tekla Structures

Define analysis model rules

You can create analysis model rules to define how Tekla Structures handles individual parts when it creates analysis models, and how parts are connected with each other.

Open the Analysis Model Rules dialog box

Use the Analysis Model Rules dialog box to work with the rules of an analysis model.

  1. On the Analysis & design tab, click A&D models.
  2. In the Analysis & Design Models dialog box:
    1. Select an analysis model.
    2. Click Properties.
  3. In the Analysis Model Properties dialog box, go to the Analysis model tab and click Analysis model rules.

    The Analysis Model Rules dialog box opens.

Add an analysis model rule

  1. Open the Analysis Model Rules dialog box.
  2. Click Add to define how two groups of parts are connected with each other in the analysis.
  3. In the Selection filter 1 column, select a filter to define the first part group.

    If you need to create a new selection filter that suits your needs, click Selection filter.

  4. In the Selection filter 2 column, select a filter to define the second part group.
  5. If you want to prevent connections between the part groups, select Disabled in the Status column.
  6. In the Linkage column, select one of the following options:
    • (blank): Merges nodes or creates a rigid link.

    • Merge: Always merges nodes when parts matching the first selection filter connect with parts matching the second selection filter.

    • Rigid link: Creates a rigid link when parts matching the first selection filter connect with parts matching the second selection filter.

    • Rigid link, moment release at node 1: Creates a rigid link and a moment release at the nodes of parts matching the first selection filter.

    • Rigid link, moment release at node 2: Creates a rigid link and a moment release at the nodes of parts matching the second selection filter.

    • Rigid link, moment release at both nodes: Creates a rigid link and moment releases at the nodes of parts matching the first and the second selection filter.

  7. Click OK to save the rules.
  8. In the Analysis Model Properties dialog box, click OK to save the rules as properties of the current analysis model.

Organize analysis model rules

You can change the order of the analysis model rules that you have created for an analysis model. The last rule in the Analysis Model Rules dialog box overrides the previous ones.

  1. Open the Analysis Model Rules dialog box.
  2. Select a rule.
  3. To move the rule up in the list, click Move up.

    To move the rule down in the list, click Move down.

  4. Click OK to save the changes.
  5. In the Analysis Model Properties dialog box, click OK to save the rules as properties of the current analysis model.

Delete analysis model rules

You can delete one or more selected analysis model rules from an analysis model.

  1. Open the Analysis Model Rules dialog box.
  2. Select the rule or rules to delete.

    To select multiple rules, hold down the Ctrl or Shift key.

  3. Click Remove.
  4. Click OK to save the changes.
  5. In the Analysis Model Properties dialog box, click OK.

Test analysis model rules

You can test the analysis model rules that you have created on the selected parts before you bring the rules into use.

  1. In the model, select the parts on which you want to test the rules.
  2. In the Analysis Model Rules dialog box:
    1. Click Test selected parts.

      Tekla Structures opens the Analysis model rules test report that lists the IDs of the selected parts, matching selection filters, and the results of using the rules.

    2. If needed, modify or reorganize the rules and test again.
    3. When the rules work as you desired, click OK to save the rules.
  3. In the Analysis Model Properties dialog box, click OK to save the rules as properties of the current analysis model.

Save analysis model rules

You can save analysis model rules for later use in the same or another analysis model.

  1. In the Analysis Model Rules dialog box:
    1. If needed, save the rules for later use:

      Enter a unique name in the box next to the Save as button, and then click Save as.

      Tekla Structures saves the rules file in the \attributes folder under the current model folder.

      The file name extension of an analysis model rules file is .adrules.

    2. Click OK.
  2. In the Analysis Model Properties dialog box, click OK to save the rules as properties of the current analysis model.
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