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Error exporting rvt to ifc from a file created in Archicad

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eve_silva
229 Aufrufe, 1 Antwort

Error exporting rvt to ifc from a file created in Archicad

We are having trouble exporting some Walls to IFC. This is our current workflow:

 

  1. The architectural design delivers an IFC file, coming from Archicad;
  2. We link this IFC file in Revit 2021, which creates an .rvt file from the .ifc file. We link the ifc to create the rvt, instead of using the "Open IFC" option, to keep the parameters values;
  3. Then we open the .rvt file and fill the parameters that we need for the Quantity Takeoff;
  4. Finally we export a new .ifc to use with a quantity takeoff software.

 

Throught that process we realized that this .rvt, coming from the .ifc link, wasn’t accepting any color filter, not even when we applied a diferent material/color/surface pattern to the element.

 

Exemple of applying green filter to the Walls:

 

eve_silva_0-1679576599890.png

 

eve_silva_1-1679576599891.png

 

Also, these same walls are not exporting to IFC.

 

Exemple of wall that do not export:

eve_silva_2-1679576599918.png

 

Exemple of wall that exports to IFC:

eve_silva_3-1679576599938.png

 

Both elements were built the same way and have the same category: -IfcWall – IfcWallType.

Neither with nor without our propertyset the export worked. We also tried to export using Graphisoft plugin, but still no success.

The only way we found to export these elements was using Revit 2020. But any revit version beyond that faces the same situation.

Any ideas on how to solve this?

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L.Maas
als Antwort auf: eve_silva

I would not follow this approach. An IFC file is meant a final output (think of it as a printout). While Revit has (limited) capabilities to open it and convert (some) things to Revit elements it is a hit and miss. It is also why you will not see IFC editors. It is purely meant to be used as over/underlays and combining different files into a single 3Dmodel.

If data is missing from the source file then it would be better to get back to the party who created that file and have them add the required data or find a way to filter the data based on the existing information.

 

In your case what happens if you get a new modified IFC? Are you then to repeat the process, opening the file and adding all the data again?

 

Louis

EESignature

Please mention Revit version, especially when uploading Revit files.

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