In the Main tab , you can assign the analysis types and define other parameters. Select the load case in the 'list' on the left.
Categories
In this section, you can define the basic settings for the time history analysis of the load case.
Analysis Type
If the 'Time History Analysis' add-on is activated in the model's Base Data, the two analysis types Time History Analysis | Accelerogram and Time History Analysis | time diagram for selection. Assign one of these analysis types to each load case for which you want to perform a time history analysis.
Time History Analysis Settings
In the list of 'Time History Analysis Settings' ( DHS ), select the specifications according to which the load case is to be analyzed. For example, this concerns the combination expression or damping. These parameters are described in the Time History Analysis Settings chapter.
Use the
button to add new time history analysis settings or the
button to edit the selected setting.
Import modal analysis from load case
This option is displayed if you have selected the 'Linear Modal' solving method in the Time History Analysis Settings. In the list of the defined modal analysis load cases, specify which eigenvalue analysis should form the basis for the time history analysis.
Import masses only from load case/combination
This option is displayed if you have selected the 'Linear Implicit Newmark Analysis' solving method in the Time History Analysis Settings. In the list of the defined load cases and combinations, specify which loading is to be considered as mass in the time history analysis.
Action category
The definition of the action category is only available for load cases of the analysis type 'Time History Analysis | time diagram is possible. Load cases of type 'Time History Analysis | Accelerogram' are automatically assigned to the 'earthquake actions ( AE ) category.
Options
You can access the 'Structure modification' check box if you have selected the 'Linear implicit Newmark analysis' solving method in the Time History Analysis Settings. It opens the possibility to consider a stiffness adjustment or a special treatment of nonlinearities in the load case (see Chapter Structure Modifications of RFEM). manual). Select the appropriate structural modification in the list, or create a new modification type using the
button.
If you have specified the solving method 'Linear Modal' in the Time History Analysis Settings, the settings of the corresponding modal analysis load case will be used