| Product(s): | OpenBuildings Designer (and AECOsim Building Designer) | ||
| Version(s): | CONNECT Edition and V8i | ||
| Area: | Import/Export | ||
| Subarea: | IFC | ||
Why don't all of the elements in a design model export to IFC COBie
COBie is a subset of IFC, i.e., only selected objects are extracted from the model and are included in the COBie spread sheet. The objects that are extracted are those defined by COBie as being Physical assests that will require maintenance or tracking, e.g, chairs, light fixtures, etc.
Walls, columns and slabs are not generally included in the export as they are deemed not to require maintenance.
As the (FMH) Facilities Management Handover/COBie Model View Definition (MVD) is focused on ‘manageable assets’, elements such as walls, columns, beams, slabs, stairs, etc. are excluded and not exported. The excluded IFC classes are defined in:
…/Dataset_<region>/setting/IFC_COBieFilter.set.
If you comment out classes, they will be exported, but that may violate the MVD. To comment add double-slash (//) in the front of the line. Do not forget to enable type object classes when you enable entity class.
Example file content from Dataset_ISO19650:
/*--------------------------------------------------------------------------------------+|| IFC EXPORT FM Handover / COBie filter||---------------------------------------------------------------------------------------| $RCSfile: IFC_COBieFilter.set,v $| $Revision: 1.2 $|| $Copyright: (c) 2021 Bentley Systems, Incorporated. All rights reserved. $|+--------------------------------------------------------------------------------------*/
VERSION 2.2FILE_DESCRIPTION "ViewDefinition [FMHandOverView]";
EXCLUDE_DOMAIN//OBJECT IDM IGNORED ENTITY LISTS//Source: COBie TOOLKIT USER GUIDE//Release: Beta 1.3//Release date: April 18, 2013//IfcAnnotationIfcBeam//IfcBeamStandardCaseIfcBeamTypeIfcBuildingElementPartIfcBuildingElementProxyIfcBuildingElementProxyType//IfcCableCarrierSegmentIfcCableCarrierSegmentType//IfcCableSegmentIfcCableSegmentTypeIfcColumn//IfcColumnStandardCaseIfcColumnTypeIfcCoveringIfcCoveringTypeIfcCurtainWallIfcCurtainWallTypeIfcDistributionPortIfcDuctFittingType//IfcDuctSegmentIfcDuctSegmentTypeIfcElementAssemblyIfcFastenerIfcFastenerTypeIfcFeatureElementIfcFeatureElementAdditionIfcFeatureElementSubtractionIfcFlowFittingIfcFlowFittingTypeIfcFlowSegmentIfcFlowSegmentTypeIfcFootingIfcJunctionBoxTypeIfcMechanicalFastenerIfcMember//IfcMemberStandardCaseIfcMemberTypeIfcOpeningElement//IfcOpeningStandardCaseIfcPileIfcPipeFittingType//IfcPipeSegmentIfcPipeSegmentTypeIfcPlate//IfcPlateStandardCaseIfcPlateTypeIfcProjectionElementIfcRailingIfcRailingTypeIfcRampIfcRampFlightIfcRampFlightType//IfcRampTypeIfcReinforcingBarIfcReinforcingMeshIfcRoofIfcSlab//IfcSlabElementedCase//IfcSlabStandardCaseIfcSlabTypeIfcSpaceTypeIfcStairIfcStairFlightIfcStairFlightType//IfcStairTypeIfcStructuralActionIfcStructuralActivityIfcStructuralConnection//IfcStructuralCurveActionIfcStructuralCurveConnectionIfcStructuralCurveMemberIfcStructuralCurveMemberVarying//IfcStructuralCurveReactionIfcStructuralItemIfcStructuralLinearActionIfcStructuralMemberIfcStructuralPlanarActionIfcStructuralPointActionIfcStructuralPointConnectionIfcStructuralPointReactionIfcStructuralReaction//IfcStructuralSurfaceActionIfcStructuralSurfaceConnectionIfcStructuralSurfaceMemberIfcStructuralSurfaceMemberVarying//IfcStructuralSurfaceReaction//IfcSurfaceFeatureIfcVirtualElement//IfcVoidingFeatureIfcWall//IfcWallElementedCaseIfcWallStandardCaseIfcWallType
ALLOW_PROPERTY_SET Pset_* ePset_* COBie_* @AirHandling @AirDistribution @Door @Furniture @ObjectManufacturer @ObjectPostalAddress @Plumbing @Properties @Pumps @Space @Spaces @Specialty_Safety @VAV @Window BaseQuantities
// Add further or remove property set names as required (without .xsd extension).// Use wildcards (*) as necessary, e.g.// Pset_* - export all property sets starting with 'Pset_' for all objects// Door - only export the 'Door' property set, but not ArchDoor, Door_PAZ, etc.// ObjectManufacturer FOR Casework - export the ObjectManufacturer property set only for Casework// *COBie* - export every property set that includes the string 'COBie'// @<property set> - export using the internal property set name, not the display name
SYSTEMS "Properties/@SystemId"
PREFERRED_CLASSIFICATION Uniclass// Enter the preferred classification system name
ONLY_ONE_CLASSIFICATION