Merge analysis models using analysis applications

Tekla Structures
2024
Tekla Structures

Merge analysis models using analysis applications

You can merge Tekla Structures analysis models with models in some external analysis applications. This means that you can make changes to Tekla Structures physical and analysis models even after you have exported them to an analysis application, and still keep the additions you have made to the exported models in the analysis application.

For example, you can create a Tekla Structures model, create an analysis model of it, export the analysis model to an analysis application, add special loads to the model in the analysis application, and then run the analysis. If you then need to make changes to the physical or analysis model in Tekla Structures, you can merge models in the analysis application. If you do not merge models and you re-export the changed Tekla Structures analysis model to the analysis application, you will lose the additions you have made to the model in the analysis application.

For more information, see Analysis and design systems.

Merge analysis models using SAP2000

You can merge Tekla Structures analysis models with models in SAP2000.

By default, Tekla Structures and SAP2000 analysis models are not merged. This means that a new SAP2000 model is created always when you export a Tekla Structures analysis model to SAP2000.

If you choose to merge a Tekla Structures analysis model with a model in SAP2000, the changes in the Tekla Structures physical or analysis model are merged to the model in SAP2000. Additional objects and definitions, such as parts, bars, loads, and load combinations, created in SAP2000 are retained in SAP2000. Additional objects created in SAP2000 cannot be imported to Tekla Structures, but they are taken into account in the analysis. They affect the analysis results, which you can import to Tekla Structures.

When exported to SAP2000, the objects created in Tekla Structures will receive a prefix "_" to their names. The prefix distinguishes the objects created in Tekla Structures from the objects created in SAP2000.

Additional loads created in SAP2000 will be added to the load combinations that are created in SAP2000. If you add additional loads to the load combinations that are created in Tekla Structures, the loads will be removed from these load combinations when you merge models and export a Tekla Structures analysis model to SAP2000.

Merging Tekla Structures and SAP2000 analysis models helps in retaining the existing analysis node and bar numbers in SAP2000.

  • Existing node numbers are kept if the node coordinates stay the same.

  • Existing bar numbers are kept if the start and end node numbers stay the same.

  • Old node and bar numbers are not re-used.

Limitations

Changes in the following properties in Tekla Structures are not updated in SAP2000 even if you merge models:

  • The profile and material properties of parts if a profile or material name already exists in SAP2000

  • Load combinations if the name of the load combination already exists in SAP2000

To keep the changes made in SAP2000 when you re-export a changed Tekla Structures analysis model, you can adjust the profile and material properties and the load combination type in SAP2000.

If you change the support condition settings in SAP2000 and then re-export a Tekla Structures analysis model, you will lose these changes.

How to merge a Tekla Structures analysis model with a model in SAP2000

  1. On the Analysis & design tab, click A&D models.
  2. In the Analysis Model Properties dialog box, do one of the following:
    • To merge an existing analysis model, select the analysis model, and then click Properties to check and modify its properties.

    • To create a new analysis model and merge it, click New.

  3. In the Analysis Model Properties dialog box:
    1. In the Analysis application list, select SAP2000.
    2. In the Model merging with analysis application list, select Enabled.
    3. If you are merging a new analysis model, modify the other analysis model properties if needed.
    4. Click OK to save the analysis model properties.
Tekla Structures merges the models the next time you export the Tekla Structures analysis model to SAP2000 to run the analysis.

Reset merged analysis models

You can reset model merging between Tekla Structures and external analysis applications.

  1. On the Analysis & design tab, click A&D models.
  2. In the Analysis & Design Models dialog box:
    1. Select the analysis model to reset.
    2. Click Properties.
  3. In the Analysis Model Properties dialog box:
    1. In the Model merging with analysis application list, select Disabled.
    2. Click OK to save the analysis model properties.
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