Calculate#

Calculates immediately the system associated to the active view.

The calculation is controlled by the analysis tasks and settings in the System View Properties.

General#

Important

All elements visible in the active Revit view are taken into account when generating the Finite Element model. Elements which are not visible in the active Revit view are ignored.

In extenso: What you see is what you get…

Ensure the Structural Properties panel is displayed.
If not, click SOFiSTiK Analysis Tab ‣ Manage ‣ Structural Properties to open it.
There, check and adjust the system’s analysis tasks and settings (in the System View Properties associated with the active view).
Click SOFiSTiK Analysis Tab ‣ Current System ‣ Calculate to start immediately with the calculations [3].

Calculate the Main System#

If the active Revit view is the SOFiSTiK Main System View, Calculate enables you to generate, load and analyze its Finite Element model.

Calculate a Subsystem#

If the active Revit view is a SOFiSTiK Subsystem View, Calculate enables you to generate, load and analyze secondary Finite Element models called “Subsystems”. In this case, additional options, specific to subsystems, are available in the System View properties. For instance, subsystems allow for an the automatic generation of boundary conditions and the application of a load take down.

Important

If a subsystem is part of a Load Take Down set and this set is active, some System View properties are handled through the set, as indicated through the read-only state.

Tip

The What you see is what you get rule allows to configure different Revit views (especially Subsystem Views) to generate different kind of systems within the same project. For example to obtain different loading situations or even different structural models.

System View Properties#

*Structural Properties* for System View#
General [1] [2]	Here, find general SOFiSTiK information associated to the system. `Self-weight in` defines the load case in which the self-weight for the visible elements in the view is generated at calculation. `Type` defines the type of subsystem, e.g., a 3D system or a reduced 2D system.[2]
Analysis Tasks [1] [2]	The properties listed here control which analysis tasks will be performed during Calculate. `Generate FE Mesh` allows to control if a Finite Element Model is generated and meshed. Meshing is only necessary for full analysis of systems. To optimize calculation time in a strictly subsystem-based workflow, meshing of the Main System can be deactivated.[1] `Analysis Settings` In the Geometry tab, adjust settings related to geometry healing and the processing of the analytical model (e.g., tolerance settings). In the Meshing tab, adjust meshing-related settings (e.g., type of elements generated, element size). Tip For experienced users, when the property `Process immediately` is `OFF`, the CADiNP input of to the calculation is generated but not processed. This allows to save calculation time, e.g., by processing this input later from the SOFiSTiK Structural Desktop (SSD).
Load Take Down [2]	The properties listed here allow checking if the subsystem is part of Load Take Down sets.
Boundary Conditions [2]	SOFiSTiK Analysis + Design provides the possibility to transform supporting elements into Boundary Conditions. Create Boundary Conditions activates this transformation for the current subsystem. Note When the property Create Boundary Conditions is `OFF`, Finite Elements will also be generated for the supporting elements. Supporting Elements ‣ Highlight Visualises the supporting elements for the current subsystem. Components Selection ‣ Edit… Allows to select or deselect supporting elements. To control the subsystem support: Select the supporting elements (either manually or using Supporting Elements ‣ Highlight). The Structural Properties now show the properties of the selected elements, e.g., Column or Wall. Adjust stiffnesses according to the options available under Subsystem Support for the respective element type.

Tip

When selecting one or multiple subsystem in the Analysis Browser, the Subsystem panel displays in Structural Properties. It is a reduced System View panel to check and adjust its most important information.