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

Answer

The interface between Dlubal and Revit works internally with so-called Global Unique Identifiers (GUIDs). Revit assigns a GUID to each object. During the import and export, this GUID is transferred via the interface and added to the corresponding Dlubal object (member, surface, etc.). By using GUIDs, you can carry out updates in both directions with only those objects needing to be updated that are affected by 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 application. For example, Revit treats each line support individually. If a line support type is assigned to several lines in RFEM, duplicates of the line support type are automatically created when exporting to Revit in RFEM. A line is assigned to each duplicate. Then, a 1:1 comparison is possible (see Figure).

Due to the described functionality of the interface with the resulting modification of the Dlubal model data, it cannot be ruled out that the results will be deleted. Therefore, it is recommended to export the model to Revit before the calculation is made. The results can be transferred retroactively within a 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