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IFC export, possibility to calculating each skin

ELEMENTS THAT ARE DRAWN WITH COMPOSITES CAN BE EXPORTED AS IFC FOR MORE DETAILED CALCULATION IN E.G. SOLIBRI, AS YOU GET THE OPPORTUNITY TO CALCULATE EACH SPECIFIC LAYER IN THE ELEMENTS.

This is recommended to have a specific IFC translator used when requested. It is also recommended to update your startup files so that it is ready when requested.

Start by starting a new project and drawing out a chosen composite wall as the first test.

Classifications

First, we need to create new classifications to be able to distinguish between different core elements of the composites.

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 Building Materials

In order to facilitate IFC exports, builidng materials for specific layers should be created with proper classification. It is important that all parts that are part of a composite are classified either as structural wall or as another component instead of material classification.

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When all the building materials are finished, you must not forget to update the composites so that they have the new building materials that have been created.

IFC Translator

For IFC exports, a specific adjusted IFC translator is needed.

Create a copy of "Precise Geometry Export (BIP)" and rename it.

Change:

Model View Defenition (Coordination View (Surface Geometry)

Model Filter All 3D elements (Coordination View (Surface Geometry

Type Mapping Structural walls to be exported as ifcWall, the same applies to slab and roof. The other skins shall be exported as ifcCovering

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 Geometry Conversion Optimized for CostX  

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Property Mapping

Metadata such as each layer's climate data or other information that should be on the specific layers must be mapped so that the desired metadata is exported to the "For Element Components only" layers.

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It is recommended that you test it in your own boot file and check the result with created composites before applying it to live projects.

When exported as an IFC, the model is checked in Solibri.

During the check, you should see the element and it shows what is included in the element with the desired metadata for each element.

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 With the help of this, it is possible to create Information Takeoff in Solibri that can be used for e.g. cost calculation in exel.  

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 Keep in mind that the more specific metadata that is applied to the layers makes it easier to structure and extract the information in Solibri.