4.3. MAPPING CATEGORIES REVIT, PRECAUTIONS AND DETAILS
In revit, it is important to respect the Revit categories listed below in order to have the required properties in Revit.
In IFC, it is important to respect the IFC class in the GID sheet so that all properties defined in Revit are present in the IFC.
| Objet CRTI-B | Catégorie Revit [Classification BIMQ] |
|---|---|
| Level Zone Space (AR) Space(MEP) Foundation footing Slab-on-grade (load-bearing or not) Foundation beam Deep foundation Caisson foundation Column Beam Slab (load-bearing) Ramp Wall (load-bearing or not) Curtain wall Door Window Stair Roof Linear structural member Chimney Water collector Ventilation duct Transport equipment (excluding lifts) Lift Technical floor False ceiling Wall finishing Floor finishing Roof finishing Sanitary equipment Pump Tank Sanitary/heating pipe Sanitary/heating pipe fitting Ventilation air terminal Air-to-air exchanger Filter Fan Air handling unit (AHU) Ventilation duct Ventilation duct connection Ventilation silencer Damper and register Heat production – water Heat production – steam Heat diffusion – radiator Chiller Heat/cold distribution – convector Heat/cold diffusion – surface Solar panel Electrical switch Cable tray Cable tray connection Lightfixture Safety lighting Electrical generator Electricity storage Electrical transformer Electrical panel Electrical protection equipment Electrical outlet Electric appliance Data device Audiovisual device Actuator Management panel Breeching inlet Fire hydrant Fire hose reel Sprinkler Fire protection cabinet Extinguisher Furniture | Levels HVAC Zones Rooms Spaces Structural Foundations [Foundation footing] Structural Foundations [Slab-on-grade (load-bearing or not)] Structural Framing [Foundation beam] Structural Foundations [Deep foundation] Structural Foundations [Caisson foundation] Structural Columns Structural Framing [Beam] Floors [Slab (load-bearing)] Ramps Walls [Wall (load-bearing or not)] Curtain walls Doors Windows Stairs Roofs [Roof] Structural Framing [Linear structural member] Pipes [Chimney] Gutters Ducts [Ventilation duct] Specialty Equipment [Transport equipment (excluding lifts)] Specialty Equipment [Lift] Floors [Technical floor] Ceilings [False ceiling] Walls [Wall finishing] Floors [Floor finishing] Roofs [Roof finishing] Plumbing Fixtures Mechanical Equipment [Pump] Mechanical Equipment [Tank] Pipes Pipe Fittings Air Terminals Mechanical Equipment [Air-to-air exchanger] Mechanical Equipment [Filter] Mechanical Equipment [Fan] Mechanical Equipment [Air handling unit (AHU)] Ducts [Ventilation duct] Duct Fittings Duct Accessories [Ventilation silencer] Duct Accessories [Damper and register] Mechanical Equipment [Heat production – water] Mechanical Equipment [Heat production – steam] Mechanical Equipment [Heat diffusion – radiator] Mechanical Equipment [Chiller] Mechanical Equipment [Heat/cold distribution – convector] Mechanical Equipment [Heat/cold diffusion – surface] Electrical Equipment [Solar panel] Lighting Devices Cable Trays Cable Tray Fittings Lighting Fixtures [Lightfixture] Lighting Fixtures [Safety lighting] Electrical Equipment [Electrical generator] Electrical Equipment [Electricity storage] Electrical Equipment [Electrical transformer] Electrical Equipment [Electrical panel] Security Devices [Electrical protection equipment] Electrical Fixtures Electrical Equipment [Electric appliance] Data Devices [Data device] Communication Devices Data Devices [Actuator] Data Devices [Management panel] Mechanical Equipment [Breeching inlet] Mechanical Equipment [Fire hydrant] Mechanical Equipment [Fire hose reel] Sprinklers Mechanical Equipment [Fire protection cabinet] Specialty Equipment [Extinguisher] Furniture |
Precautions and details
It should be noted that some properties or attributes do not work satisfactorily. It is therefore the responsibility of the modeler to check if each required property is present, before and after IFC export, see also 5. Quality control before IFC export and 7. Control and export of the IFC. We have also noticed that the mapping of certain “built in” properties poses problems for certain objects, in particular. So in some cases we have duplicated the built-in property and it is this duplicated property that must be completed. You just have to look at the properties displayed in the objects to know if this is the case or not. We have listed below the other anomalies or exceptions.
Architecture and structure objects :
- Object “Gutter” : no property of this object works.
- Attribute “Class.Type”: does not work for the objects “Chimney” (IFC2x3), “Curtain Wall”, “Ramp” and “Building”.
- Attribute “Class.Type”: there are no types in the IFC2x3 scheme for “Furniture”, “Door” and “Window”.
- Material” attribute: does not work for “Chimney”
- Property “Carrier Element”:
- The built-in property has been used for the objects “Slab”, “Slab on grade” and “wall”.
- A custom property has been used for the objects “Threaded footing”, “Insulated footing”, “Foundation sill”, “Pile”, “Foundation box”, “Column”, “Beam”, “Ramp”, “and “Structural element”.
- Property “Exterior”:
- A custom property was created for all objects in Revit. Indeed, the Built-in property was not conclusive and stable.
- Please note that the generated configuration file has been manually modified for “Slab on grade” due to a generation problem, no action is required as long as you do not use BIMQ to generate custom configuration files yourself.
- Property “Thermal transmission” : does not work for “Curtain wall”.
- Attribute “Classification Uniformat II 2010 Number”: this property does not exist for the “spaces” because not foreseen in the classification.
- Attribute “Classification Uniformat II 2010 Description”: this property does not exist for the “spaces” because not foreseen in the Classification.
MEP objects:
- Property “Type of airflow”: to assign a value to this property, you have to connect the pipe to a terminal (such as a mouth), then the value of the property would be specified in the pipe automatically.
- Property “Class.Type” : does not work for “Electricity – Table” (IFC2x3)
- Voltage” property: does not work for “Electricity – Lighting” (IFC2x3), “Electricity – Emergency Lighting” (IFC2x3)
- Property “Nominal power” : the property does not work for the object “Cold production” (IFC2x3)
- Nominal consumption power” property: the property does not work for the “Cold production” object (IFC2x3)
- Property “Radiator type” : finned tube, panel, section, tubular – not available in IFC2x3 for object “Heat diffusion, radiator (centralized or not)
- Voltage” property: the Pset for the “Voltage” property has been changed from Pset (which exists in the IFC2x3 schema) to ePset to make it work in IFC2x3, otherwise the property does not appear in IFC.