IFC 4.3.2.20250327 (IFC4X3_ADD2) under development

5.4.3.8 IfcBridgePart

5.4.3.8.1 Semantic definition

Part of a bridge.

5.4.3.8.2 Entity inheritance

5.4.3.8.3 Attributes

# Attribute Type Description
IfcRoot (4)
IfcObjectDefinition (7)
IfcObject (5)
IfcProduct (5)
IfcSpatialElement (6)
IfcSpatialStructureElement (1)
IfcFacilityPart (1)
Click to show 29 hidden inherited attributes
IfcBridgePart (1)
11 PredefinedType OPTIONAL IfcBridgePartTypeEnum

A list of types to further identify the object. Some property sets may be specifically applicable to one of these types.

Table 5.4.3.8.A

5.4.3.8.4 Formal propositions

Name Description
CorrectPredefinedType

Either PredefinedType is unset or the inherited attribute ObjectType shall be provided, if the PredefinedType is set to USERDEFINED or PredefinedType.

NOT(EXISTS(PredefinedType)) OR
(PredefinedType <> IfcBridgePartTypeEnum.USERDEFINED) OR
((PredefinedType = IfcBridgePartTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType))
Table 5.4.3.8.B

5.4.3.8.5 Property sets

  • Pset_AirSideSystemInformation
    • Description
    • AirSideSystemType
    • AirSideSystemDistributionType
    • TotalAirFlow
    • EnergyGainTotal
    • AirFlowSensible
    • EnergyGainSensible
    • EnergyLoss
    • InfiltrationDiversitySummer
    • InfiltrationDiversityWinter
    • ApplianceDiversity
    • HeatingTemperatureDelta
    • CoolingTemperatureDelta
    • Ventilation
    • FanPower
  • Pset_PropertyAgreement
    • AgreementType
    • TrackingIdentifier
    • AgreementVersion
    • AgreementDate
    • PropertyName
    • CommencementDate
    • TerminationDate
    • Duration
    • Options
    • ConditionCommencement
    • Restrictions
    • ConditionTermination
  • Pset_Risk
    • RiskName
    • RiskType
    • NatureOfRisk
    • RiskAssessmentMethodology
    • UnmitigatedRiskLikelihood
    • UnmitigatedRiskConsequence
    • UnmitigatedRiskSignificance
    • MitigationPlanned
    • MitigatedRiskLikelihood
    • MitigatedRiskConsequence
    • MitigatedRiskSignificance
    • MitigationProposed
    • AssociatedProduct
    • AssociatedActivity
    • AssociatedLocation
  • Pset_SpaceAirHandlingDimensioning
    • CoolingDesignAirFlow
    • HeatingDesignAirFlow
    • SensibleHeatGain
    • TotalHeatGain
    • TotalHeatLoss
    • CoolingDryBulb
    • CoolingRelativeHumidity
    • HeatingDryBulb
    • HeatingRelativeHumidity
    • VentilationDesignAirFlow
    • DesignAirFlow
    • CeilingRAPlenum
    • BoundaryAreaHeatLoss
  • Pset_SpaceCommon
    • Reference
    • IsExternal
    • GrossPlannedArea
    • NetPlannedArea
    • PubliclyAccessible
    • HandicapAccessible
  • Pset_SpaceCoveringRequirements
    • FloorCovering
    • FloorCoveringThickness
    • WallCovering
    • WallCoveringThickness
    • CeilingCovering
    • CeilingCoveringThickness
    • SkirtingBoard
    • SkirtingBoardHeight
    • Molding
    • MoldingHeight
    • ConcealedFlooring
    • ConcealedFlooringOffset
    • ConcealedCeiling
    • ConcealedCeilingOffset
  • Pset_SpaceFireSafetyRequirements
    • FireRiskFactor
    • FlammableStorage
    • FireExit
    • SprinklerProtection
    • SprinklerProtectionAutomatic
    • AirPressurization
  • Pset_SpaceHVACDesign
    • TemperatureSetPoint
    • TemperatureMax
    • TemperatureMin
    • TemperatureSummerMax
    • TemperatureSummerMin
    • TemperatureWinterMax
    • TemperatureWinterMin
    • HumiditySetPoint
    • HumidityMax
    • HumidityMin
    • HumiditySummer
    • HumidityWinter
    • DiscontinuedHeating
    • NaturalVentilation
    • NaturalVentilationRate
    • MechanicalVentilation
    • MechanicalVentilationRate
    • AirConditioning
    • AirConditioningCentral
    • AirHandlingName
  • Pset_SpaceLightingDesign
    • ArtificialLighting
    • Illuminance
  • Pset_SpaceOccupancyRequirements
    • OccupancyType
    • OccupancyNumber
    • OccupancyNumberPeak
    • OccupancyTimePerDay
    • AreaPerOccupant
    • MinimumHeadroom
    • IsOutlookDesirable
  • Pset_SpaceThermalLoad
    • People
    • Lighting
    • EquipmentSensible
    • VentilationIndoorAir
    • VentilationOutdoorAir
    • RecirculatedAir
    • ExhaustAir
    • AirExchangeRate
    • DryBulbTemperature
    • RelativeHumidity
    • InfiltrationSensible
    • TotalSensibleLoad
    • TotalLatentLoad
    • TotalRadiantLoad
  • Pset_SpaceThermalLoadPHistory
    • PeopleHistory
    • LightingHistory
    • EquipmentSensibleHistory
    • VentilationIndoorAirHistory
    • VentilationOutdoorAirHistory
    • RecirculatedAirHistory
    • ExhaustAirHistory
    • AirExchangeRateTimeHistory
    • DryBulbTemperatureHistory
    • RelativeHumidityHistory
    • InfiltrationSensibleHistory
    • TotalSensibleLoadHistory
    • TotalLatentLoadHistory
    • TotalRadiantLoadHistory
  • Pset_SpaceThermalPHistory
    • CoolingAirFlowRate
    • HeatingAirFlowRate
    • VentilationAirFlowRateHistory
    • ExhaustAirFlowRate
    • SpaceTemperatureHistory
    • SpaceRelativeHumidity
  • Pset_ThermalLoad
    • OccupancyDiversity
    • LightingDiversity
    • ApplianceDiversity
    • OutsideAirPerPerson
    • ReceptacleLoadIntensity
    • AppliancePercentLoadToRadiant
    • LightingLoadIntensity
    • LightingPercentLoadToReturnAir
    • TotalCoolingLoad
    • TotalHeatingLoad
    • InfiltrationDiversitySummer
    • InfiltrationDiversityWinter
    • LoadSafetyFactor
  • Pset_Tolerance
    • ToleranceDescription
    • ToleranceBasis
    • OverallTolerance
    • HorizontalTolerance
    • OrthogonalTolerance
    • VerticalTolerance
    • PlanarFlatness
    • HorizontalFlatness
    • ElevationalFlatness
    • SideFlatness
    • OverallOrthogonality
    • HorizontalOrthogonality
    • OrthogonalOrthogonality
    • VerticalOrthogonality
    • OverallStraightness
    • HorizontalStraightness
    • OrthogonalStraightness
    • VerticalStraightness
  • Pset_Uncertainty
    • UncertaintyBasis
    • UncertaintyDescription
    • HorizontalUncertainty
    • LinearUncertainty
    • OrthogonalUncertainty
    • VerticalUncertainty
  • Qto_BodyGeometryValidation
    • GrossSurfaceArea
    • NetSurfaceArea
    • GrossVolume
    • NetVolume
    • SurfaceGenusBeforeFeatures
    • SurfaceGenusAfterFeatures
  • Qto_FacilityPartBaseQuantities
    • Length
    • Width
    • Height
    • Area
    • Volume

5.4.3.8.6 Concept usage

Concept Usage Description
IfcRoot (2)
IfcObjectDefinition (9)
IfcObject (5)
IfcProduct (18)
IfcSpatialElement (11)
IfcSpatialStructureElement (2)
IfcFacilityPart (4)
Click to show 51 hidden inherited concepts
IfcBridgePart (4)
Product Local Placement General

The local placement for IfcBridgePart is defined in its supertype IfcProduct. It is defined by the IfcLocalPlacement or IfcLinearPlacement, which defines the local coordinate system that is referenced by all geometric representations.

  • The PlacementRelTo relationship of IfcLocalPlacement or IfcLinearPlacement shall point (if relative placement is used) to the IfcSpatialStructureElement of type IfcBridge, or of type IfcBridgePart (e.g. to position a bridge part relative to a bridge part complex, or a partial bridge part to a bridge part).
  • If the relative placement is not used, the absolute placement is defined within the world coordinate system.
Spatial Composition General

This concept can be applied to the following resources:

  • IfcBridge - Assignment to the bridge, where the bridge part is a part of.
Spatial Container General

If there are building elements and/or other elements directly related to the IfcBridgePart (like most building elements, such as walls, columns, etc.), they are associated with the IfcBridgePart by using the objectified relationship IfcRelContainedInSpatialStructure. The IfcBridgePart references them by its inverse relationship:

Elements can also be referenced in an IfcBridgePart, for example, if they span through several storeys. This is expressed by using the objectified relationship IfcRelReferencedInSpatialStructure. Systems, such as building service or electrical distribution systems, zonal systems, or structural analysis systems, relate to IfcBridgePart by using the objectified relationship IfcRelServicesBuildings.

Spatial Decomposition General

This concept can be applied to the following resources:

Table 5.4.3.8.C

5.4.3.8.7 Formal representation

ENTITY IfcBridgePart
SUBTYPE OF (IfcFacilityPart);
PredefinedType : OPTIONAL IfcBridgePartTypeEnum;
WHERE
CorrectPredefinedType : NOT(EXISTS(PredefinedType)) OR
(PredefinedType <> IfcBridgePartTypeEnum.USERDEFINED) OR
((PredefinedType = IfcBridgePartTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType));
END_ENTITY;

5.4.3.8.8 References

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5.4.3.8.9 Changelog

5.4.3.8.9.1 IFC4.2

  • New resource

5.4.3.8.9.2 IFC4.3_DEV_738df036

  • where rule, CorrectPredefinedType