6.1.3.5 IfcBuildingElementProxy
6.1.3.5.1 Semantic definition
The IfcBuildingElementProxy is a proxy definition that provides the same functionality as subtypes of IfcBuiltElement, but without having a predefined meaning of the special type of building element it represents.
IfcBuildingElementProxy may be used:
- To exchange special types of building elements for which the current specification does not yet provide a semantic definition.
- To represent building elements for which the participating applications can not provide a semantic definition.
6.1.3.5.2 Entity inheritance
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- IfcBuildingElementProxy
- IfcBeam
- IfcBearing
- IfcChimney
- IfcColumn
- IfcCourse
- IfcCovering
- IfcCurtainWall
- IfcDeepFoundation
- IfcDoor
- IfcEarthworksElement
- IfcFooting
- IfcKerb
- IfcMember
- IfcMooringDevice
- IfcNavigationElement
- IfcPavement
- IfcPlate
- IfcRail
- IfcRailing
- IfcRamp
- IfcRampFlight
- IfcRoof
- IfcShadingDevice
- IfcSlab
- IfcStair
- IfcStairFlight
- IfcTrackElement
- IfcWall
- IfcWindow
6.1.3.5.3 Attributes
# | Attribute | Type | Description |
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IfcRoot (4) | |||
IfcObjectDefinition (7) | |||
IfcObject (5) | |||
IfcProduct (5) | |||
IfcElement (13) | |||
Click to show 34 hidden inherited attributes Click to hide 34 inherited attributes | |||
IfcBuildingElementProxy (1) | |||
9 | PredefinedType | OPTIONAL IfcBuildingElementProxyTypeEnum |
Predefined generic type for a building element proxy that is specified in an enumeration. There may be a property set given specifically for the predefined types. |
6.1.3.5.4 Formal propositions
Name | Description | ||||||
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CorrectPredefinedType |
Either the PredefinedType attribute is unset (e.g. because an IfcBuildingElementProxyType is associated), or the inherited attribute ObjectType shall be provided, if the PredefinedType is set to USERDEFINED. |
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CorrectTypeAssigned |
Either there is no building element proxy type object associated, i.e. the IsTypedBy inverse relationship is not provided, or the associated type object has to be of type IfcBuildingElementProxyType. |
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HasObjectName |
A Name attribute should be asserted for a building element proxy. |
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6.1.3.5.5 Property sets
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Pset_BuildingElementProxyCommon
- Reference
- Status
- IsExternal
- ThermalTransmittance
- LoadBearing
- FireRating
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Pset_ConcreteElementGeneral
- AssemblyPlace
- CastingMethod
- StructuralClass
- StrengthClass
- ExposureClass
- ReinforcementVolumeRatio
- ReinforcementAreaRatio
- DimensionalAccuracyClass
- ConstructionToleranceClass
- ConcreteCover
- ConcreteCoverAtMainBars
- ConcreteCoverAtLinks
- ReinforcementStrengthClass
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Pset_Condition
- AssessmentDate
- AssessmentCondition
- AssessmentDescription
- AssessmentType
- AssessmentMethod
- LastAssessmentReport
- NextAssessmentDate
- AssessmentFrequency
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Pset_ConstructionAdministration
- ProcurementMethod
- SpecificationSectionNumber
- SubmittalIdentifer
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Pset_ConstructionOccurence
- InstallationDate
- ModelNumber
- TagNumber
- AssetIdentifier
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Pset_ElementKinematics
- CyclicPath
- CyclicRange
- LinearPath
- LinearRange
- MaximumAngularVelocity
- MaximumConstantSpeed
- MinimumTime
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Pset_EnvironmentalCondition
- ReferenceAirRelativeHumidity
- ReferenceEnvironmentTemperature
- MaximumAtmosphericPressure
- StorageTemperatureRange
- MaximumWindSpeed
- OperationalTemperatureRange
- MaximumRainIntensity
- SaltMistLevel
- SeismicResistance
- SmokeLevel
- MaximumSolarRadiation
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Pset_EnvironmentalImpactIndicators
- Reference
- FunctionalUnitReference
- IndicatorsUnit
- LifeCyclePhase
- ExpectedServiceLife
- TotalPrimaryEnergyConsumptionPerUnit
- WaterConsumptionPerUnit
- HazardousWastePerUnit
- NonHazardousWastePerUnit
- ClimateChangePerUnit
- AtmosphericAcidificationPerUnit
- RenewableEnergyConsumptionPerUnit
- NonRenewableEnergyConsumptionPerUnit
- ResourceDepletionPerUnit
- InertWastePerUnit
- RadioactiveWastePerUnit
- StratosphericOzoneLayerDestructionPerUnit
- PhotochemicalOzoneFormationPerUnit
- EutrophicationPerUnit
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Pset_EnvironmentalImpactValues
- TotalPrimaryEnergyConsumption
- WaterConsumption
- HazardousWaste
- NonHazardousWaste
- ClimateChange
- AtmosphericAcidification
- RenewableEnergyConsumption
- NonRenewableEnergyConsumption
- ResourceDepletion
- InertWaste
- RadioactiveWaste
- StratosphericOzoneLayerDestruction
- PhotochemicalOzoneFormation
- Eutrophication
- LeadInTime
- Duration
- LeadOutTime
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Pset_InstallationOccurrence
- InstallationDate
- AcceptanceDate
- PutIntoOperationDate
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Pset_MaintenanceStrategy
- AssetCriticality
- AssetFrailty
- AssetPriority
- MonitoringType
- AccidentResponse
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Pset_MaintenanceTriggerCondition
- ConditionTargetPerformance
- ConditionMaintenanceLevel
- ConditionReplacementLevel
- ConditionDisposalLevel
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Pset_MaintenanceTriggerDuration
- DurationTargetPerformance
- DurationMaintenanceLevel
- DurationReplacementLevel
- DurationDisposalLevel
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Pset_MaintenanceTriggerPerformance
- TargetPerformance
- PerformanceMaintenanceLevel
- ReplacementLevel
- DisposalLevel
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Pset_ManufacturerOccurrence
- AcquisitionDate
- BarCode
- SerialNumber
- BatchReference
- AssemblyPlace
- ManufacturingDate
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Pset_ManufacturerTypeInformation
- GlobalTradeItemNumber
- ArticleNumber
- ModelReference
- ModelLabel
- Manufacturer
- ProductionYear
- AssemblyPlace
- OperationalDocument
- SafetyDocument
- PerformanceCertificate
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Pset_PrecastConcreteElementFabrication
- TypeDesignation
- ProductionLotId
- SerialNumber
- PieceMark
- AsBuiltLocationNumber
- ActualProductionDate
- ActualErectionDate
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Pset_PrecastConcreteElementGeneral
- TypeDesignation
- CornerChamfer
- ManufacturingToleranceClass
- FormStrippingStrength
- LiftingStrength
- ReleaseStrength
- MinimumAllowableSupportLength
- InitialTension
- TendonRelaxation
- TransportationStrength
- SupportDuringTransportDescription
- SupportDuringTransportDocReference
- HollowCorePlugging
- CamberAtMidspan
- BatterAtStart
- BatterAtEnd
- Twisting
- Shortening
- PieceMark
- DesignLocationNumber
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Pset_ProvisionForVoid
PROVISIONFORVOID
- VoidShape
- Width
- Height
- Diameter
- Depth
- System
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Pset_RepairOccurrence
- RepairContent
- RepairDate
- MeanTimeToRepair
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Pset_Risk
- RiskName
- RiskType
- NatureOfRisk
- RiskAssessmentMethodology
- UnmitigatedRiskLikelihood
- UnmitigatedRiskConsequence
- UnmitigatedRiskSignificance
- MitigationPlanned
- MitigatedRiskLikelihood
- MitigatedRiskConsequence
- MitigatedRiskSignificance
- MitigationProposed
- AssociatedProduct
- AssociatedActivity
- AssociatedLocation
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Pset_ServiceLife
- ServiceLifeDuration
- MeanTimeBetweenFailure
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Pset_Tolerance
- ToleranceDescription
- ToleranceBasis
- OverallTolerance
- HorizontalTolerance
- OrthogonalTolerance
- VerticalTolerance
- PlanarFlatness
- HorizontalFlatness
- ElevationalFlatness
- SideFlatness
- OverallOrthogonality
- HorizontalOrthogonality
- OrthogonalOrthogonality
- VerticalOrthogonality
- OverallStraightness
- HorizontalStraightness
- OrthogonalStraightness
- VerticalStraightness
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Pset_Uncertainty
- UncertaintyBasis
- UncertaintyDescription
- HorizontalUncertainty
- LinearUncertainty
- OrthogonalUncertainty
- VerticalUncertainty
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Pset_Warranty
- WarrantyIdentifier
- WarrantyStartDate
- IsExtendedWarranty
- WarrantyPeriod
- WarrantyContent
- PointOfContact
- Exclusions
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Qto_BodyGeometryValidation
- GrossSurfaceArea
- NetSurfaceArea
- GrossVolume
- NetVolume
- SurfaceGenusBeforeFeatures
- SurfaceGenusAfterFeatures
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Qto_BuildingElementProxyQuantities
- NetSurfaceArea
- NetVolume
6.1.3.5.6 Concept usage
Concept | Usage | Description | |
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IfcRoot (2) | |||
IfcObjectDefinition (9) | |||
IfcObject (5) | |||
IfcProduct (18) | |||
IfcElement (44) | |||
IfcBuiltElement (3) | |||
Click to show 81 hidden inherited concepts Click to hide 81 inherited concepts | |||
IfcBuildingElementProxy (4) | |||
Object Typing | General |
If no IfcBuildingElementProxyType is attached (i.e. if only occurrence information is available) the PredefinedType should be provided. If set to USERDEFINED a user defined value has to be provided by the ObjectType attribute. This concept can be applied to the following resources: |
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Property Sets for Objects | General |
This concept can be applied to the following resources:
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Spatial Containment | General |
The IfcBuildingElementProxy, as any subtype of IfcBuiltElement, may participate alternatively in one of the two different containment relationships:
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Quantity Sets | General |
This concept can be applied to the following resources: |
6.1.3.5.7 Examples
6.1.3.5.8 Formal representation
ENTITY IfcBuildingElementProxy SUBTYPE OF (IfcBuiltElement); PredefinedType : OPTIONAL IfcBuildingElementProxyTypeEnum; WHERE CorrectPredefinedType : NOT(EXISTS(PredefinedType)) OR (PredefinedType <> IfcBuildingElementProxyTypeEnum.USERDEFINED) OR ((PredefinedType = IfcBuildingElementProxyTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType)); CorrectTypeAssigned : (SIZEOF(IsTypedBy) = 0) OR ('IFC4X3_DEV_0065273e.IFCBUILDINGELEMENTPROXYTYPE' IN TYPEOF(SELF\IfcObject.IsTypedBy[1].RelatingType)); HasObjectName : EXISTS(SELF\IfcRoot.Name); END_ENTITY;