Why are the results in RFEM/RSTAB deleted sometimes when exporting the data to Revit?

Answer

The interface between Dlubal Software and Revit works internally with so-called Global Unique Identifiers (GUIDs). In Revit, a GUID is assigned to each object. During the import and export, this GUID is transferred via the interface and added to the corresponding Dlubal Software object (member, surface, and so on). By using GUIDs, you can carry out updates in both directions with only those objects to be updated that are affected by the changes. Other objects remain unaffected. This results in a better compatibility during the data exchange.

The comparison assumes that each object in Revit has a corresponding counterpart in the Dlubal Software application. For example, Revit treats each line support individually. If a line support type is assigned to several lines in RFEM, the line support type is automatically duplicated when exporting to Revit in RFEM. A line is assigned to each duplicate. Then, a 1:1 comparison is possible (see the figure).

Due to the described functionality of the interface with the resulting modification of the Dlubal Software model data, it cannot be excluded that the results may be deleted. Therefore, it is recommended to export the model to Revit before the calculation. The results can be transferred retroactively within the second export process. 

Keywords

Revit Result GUID BIM

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RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD