You can use clash check to find clashes between reference model objects, reference model and native Tekla Structures objects, and inside reference models and Tekla Structures models.

1. On the Manage tab, click Clash check .
2. In the Clash Check Manager dialog box, select the appropriate clash check settings. The settings you select here determine what is included in the clash check.

   • Between reference models

     Clashes between reference models are included in the clash check.

   • Objects in reference models

     Clashes within reference models are included in the clash check (bolts and welds are not included).

   • Between parts

     Clashes between native Tekla Structures parts are included in the clash check.

   These settings have related advanced options: XS_CLASH_CHECK_BETWEEN_REFERENCES, XS_CLASH_CHECK_INSIDE_REFERENCE_MODELS, and XS_CLASH_CHECK_BETWEEN_PARTS. Changing the settings in the Clash Check Manager dialog box does not affect the values set in the advanced options. When you open another model or restart Tekla Structures, the settings in the Clash Check Manager dialog box are reset to match the advanced option values.

3. Set the Minimum distance (mm) between reference model objects, and between native Tekla Structures parts and reference model objects.

   Objects that are closer to each other than the set minimum distance are reported in the clash check list. The highest possible minimum distance is 500 mm.

   Note that Tekla Structures uses a hard-coded tolerance when checking clashes between native parts. If native parts overlap less than 0.25 mm, clashes are not reported.

4. In the model, select the objects you want to include in the clash check.
5. Click to check the objects.

   The status bar in Clash Check Manager indicates that clash checking is in progress.

   Tekla Structures also displays a dialog box with a clash check progress bar. The progress bar first shows the clash check progress for Tekla Structures objects, and then for reference model objects and pours. You can cancel the clash check in the dialog box.

   When the clash checking is finished, the status bar in the Clash Check Manager dialog box shows a message about listing the clash check results and a progress bar that indicates how long it will take to add all the clashes to the list of clashes. When the listing is complete, the status bar message changes to Ready.

6. To highlight a clash in the model, select a row in the list of clashes.

   The related model objects are selected.

7. To zoom the active view so that the selected objects are shown in the center of the view, double-click a row.

   To zoom to and highlight a clashing object when there is only one clash in the list of clashes, right-click the clash in the list of clashes and select Clash Information.

8. If you want to include more objects in the clash check, select the desired model objects and re-run the clash check.

   New clashes are appended to the end of the list.

9. After removing or modifying objects, re-run clash check to see if the clash still exists.
   1. Select the desired rows in the list of clashes.
   2. Click to re-run clash check.