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2024-01-16

Starting the Calculation

There are several ways to start the calculation.

Calculate Current Loading

If you only want to calculate the results of the current load case or combination, select Calculate Current Loading on the Calculate menu. Alternatively, use the 'Show Results' button.

You are asked if you want to calculate the results.

Calculate All

If you want to calculate all load cases, combinations, and design situations, select Calculate All on the Calculate menu. You can also use the corresponding button.

RFEM calculates all load cases, load combinations, result combinations, and design situations for which input data are available. The calculation is performed in parallel using several computation kernels (see image Calculation Progress).

Info

Be careful with the 'Calculate All' function: Certain load cases cannot occur on their own. Wind loads, for example, only act together with self-weight. When calculating these load cases, instabilities may occur in models with tension members or tension-free supports.

Load cases that you have excluded from calculations (see Load Cases chapter) are not analyzed by the 'Calculate All' function.

Calculate specific load cases or combinations

If you only want to analyze certain load cases or combinations, select To Calculate on the Calculate menu. The 'To Calculate' dialog box appears.

The 'Not Calculated' column lists all load cases, design situations, and combinations that you have created. To transfer an entry to the 'Selected for Calculation' list, you can use the following options:

  • Double-click the entry.
  • Select the load case or combination. Several entries can be selected by holding down the Ctrl key. Then, click the Add button.

Click 'OK' to start the calculation of the selected load cases and combinations.

Cloud Calculation

If the options for Cloud Calculations are activated, further items become available on the 'Calculate' menu (see Image 'Calculate' menu for Cloud Calculations ). Use these functions to perform calculations on a high-performance external server. This option is particularly recommended for complex models containing many load combinations.

Info

The requirements for using cloud calculations are described in the technical article about Cloud Calculations. There, you will also find detailed instructions.

Calculation process

The calculation process is shown in the 'Calculation Progress' window. In the 'Convergence Diagram', you can also observe the progresses of the maximum displacements in addition to the passed calculation steps.

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