IFC 4.3.2.20250327 (IFC4X3_ADD2) under development

7.5.3.27 IfcDuctSegment

7.5.3.27.1 Semantic definition

A duct segment is used to typically join two sections of duct network.

7.5.3.27.2 Entity inheritance

7.5.3.27.3 Attributes

# Attribute Type Description
IfcRoot (4)
IfcObjectDefinition (7)
IfcObject (5)
IfcProduct (5)
IfcElement (13)
IfcDistributionElement (1)
IfcDistributionFlowElement (1)
Click to show 36 hidden inherited attributes
IfcDuctSegment (1)
9 PredefinedType OPTIONAL IfcDuctSegmentTypeEnum

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

Table 7.5.3.27.D

7.5.3.27.4 Formal propositions

Name Description
CorrectPredefinedType

Either the PredefinedType attribute is unset (e.g. because an IfcDuctSegmentType is associated), or the inherited attribute ObjectType shall be provided, if the PredefinedType is set to USERDEFINED.

NOT(EXISTS(PredefinedType)) OR
(PredefinedType <> IfcDuctSegmentTypeEnum.USERDEFINED) OR
((PredefinedType = IfcDuctSegmentTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType))
CorrectTypeAssigned

Either there is no duct segment type object associated, i.e. the IsTypedBy inverse relationship is not provided, or the associated type object has to be of type IfcDuctSegmentType.

(SIZEOF(IsTypedBy) = 0) OR
('IFC4X3_DEV_738df036.IFCDUCTSEGMENTTYPE' IN TYPEOF(SELF\IfcObject.IsTypedBy[1].RelatingType))
Table 7.5.3.27.E

7.5.3.27.5 Property sets

  • Pset_Condition
    • AssessmentDate
    • AssessmentCondition
    • AssessmentDescription
    • AssessmentType
    • AssessmentMethod
    • LastAssessmentReport
    • NextAssessmentDate
    • AssessmentFrequency
  • Pset_ConstructionAdministration
    • ProcurementMethod
    • SpecificationSectionNumber
    • SubmittalIdentifer
  • Pset_ConstructionOccurence
    • InstallationDate
    • ModelNumber
    • TagNumber
    • AssetIdentifier
  • Pset_DuctSegmentOccurrence
    • InteriorRoughnessCoefficient
    • HasLiner
    • Colour
  • Pset_DuctSegmentPHistory
    • LossCoefficient
    • AtmosphericPressure
    • LeakageCurveHistory
    • FluidFlowLeakage
  • Pset_DuctSegmentTypeCommon
    • Reference
    • Status
    • CrossSectionShape
    • WorkingPressure
    • PressureRange
    • TemperatureRange
    • LongitudinalSeam
    • NominalDiameterOrWidth
    • NominalHeight
    • Reinforcement
    • ReinforcementSpacing
  • Pset_ElectricalDeviceCommon
    • RatedCurrent
    • RatedVoltage
    • NominalFrequencyRange
    • PowerFactor
    • ConductorFunction
    • NumberOfPoles
    • HasProtectiveEarth
    • InsulationStandardClass
    • IP_Code
    • IK_Code
    • EarthingStyle
    • HeatDissipation
    • Power
    • NominalPowerConsumption
    • NumberOfPowerSupplyPorts
  • Pset_ElectricalDeviceCompliance
    • ElectroMagneticStandardsCompliance
    • ExplosiveAtmosphereStandardsCompliance
    • FireProofingStandardsCompliance
    • LightningProtectionStandardsCompliance
  • Pset_ElementKinematics
    • CyclicPath
    • CyclicRange
    • LinearPath
    • LinearRange
    • MaximumAngularVelocity
    • MaximumConstantSpeed
    • MinimumTime
  • Pset_EnergyRequirements
    • EnergyConsumption
    • PowerDemand
    • EnergySourceLabel
    • EnergyConversionEfficiency
  • Pset_EnvironmentalCondition
    • ReferenceAirRelativeHumidity
    • ReferenceEnvironmentTemperature
    • MaximumAtmosphericPressure
    • StorageTemperatureRange
    • MaximumWindSpeed
    • OperationalTemperatureRange
    • MaximumRainIntensity
    • SaltMistLevel
    • SeismicResistance
    • SmokeLevel
    • MaximumSolarRadiation
  • Pset_EnvironmentalEmissions
    • CarbonDioxideEmissions
    • SulphurDioxideEmissions
    • NitrogenOxidesEmissions
    • ParticulateMatterEmissions
    • NoiseEmissions
  • Pset_EnvironmentalImpactIndicators
    • Reference
    • FunctionalUnitReference
    • IndicatorsUnit
    • LifeCyclePhase
    • ExpectedServiceLife
    • TotalPrimaryEnergyConsumptionPerUnit
    • WaterConsumptionPerUnit
    • HazardousWastePerUnit
    • NonHazardousWastePerUnit
    • ClimateChangePerUnit
    • AtmosphericAcidificationPerUnit
    • RenewableEnergyConsumptionPerUnit
    • NonRenewableEnergyConsumptionPerUnit
    • ResourceDepletionPerUnit
    • InertWastePerUnit
    • RadioactiveWastePerUnit
    • StratosphericOzoneLayerDestructionPerUnit
    • PhotochemicalOzoneFormationPerUnit
    • EutrophicationPerUnit
  • Pset_EnvironmentalImpactValues
    • TotalPrimaryEnergyConsumption
    • WaterConsumption
    • HazardousWaste
    • NonHazardousWaste
    • ClimateChange
    • AtmosphericAcidification
    • RenewableEnergyConsumption
    • NonRenewableEnergyConsumption
    • ResourceDepletion
    • InertWaste
    • RadioactiveWaste
    • StratosphericOzoneLayerDestruction
    • PhotochemicalOzoneFormation
    • Eutrophication
    • LeadInTime
    • Duration
    • LeadOutTime
  • Pset_InstallationOccurrence
    • InstallationDate
    • AcceptanceDate
    • PutIntoOperationDate
  • Pset_MaintenanceStrategy
    • AssetCriticality
    • AssetFrailty
    • AssetPriority
    • MonitoringType
    • AccidentResponse
  • Pset_MaintenanceTriggerCondition
    • ConditionTargetPerformance
    • ConditionMaintenanceLevel
    • ConditionReplacementLevel
    • ConditionDisposalLevel
  • Pset_MaintenanceTriggerDuration
    • DurationTargetPerformance
    • DurationMaintenanceLevel
    • DurationReplacementLevel
    • DurationDisposalLevel
  • Pset_MaintenanceTriggerPerformance
    • TargetPerformance
    • PerformanceMaintenanceLevel
    • ReplacementLevel
    • DisposalLevel
  • Pset_ManufacturerOccurrence
    • AcquisitionDate
    • BarCode
    • SerialNumber
    • BatchReference
    • AssemblyPlace
    • ManufacturingDate
  • Pset_ManufacturerTypeInformation
    • GlobalTradeItemNumber
    • ArticleNumber
    • ModelReference
    • ModelLabel
    • Manufacturer
    • ProductionYear
    • AssemblyPlace
    • OperationalDocument
    • SafetyDocument
    • PerformanceCertificate
  • Pset_RepairOccurrence
    • RepairContent
    • RepairDate
    • MeanTimeToRepair
  • Pset_Risk
    • RiskName
    • RiskType
    • NatureOfRisk
    • RiskAssessmentMethodology
    • UnmitigatedRiskLikelihood
    • UnmitigatedRiskConsequence
    • UnmitigatedRiskSignificance
    • MitigationPlanned
    • MitigatedRiskLikelihood
    • MitigatedRiskConsequence
    • MitigatedRiskSignificance
    • MitigationProposed
    • AssociatedProduct
    • AssociatedActivity
    • AssociatedLocation
  • Pset_ServiceLife
    • ServiceLifeDuration
    • MeanTimeBetweenFailure
  • Pset_SoundGeneration
    • SoundCurve
  • 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
  • Pset_Warranty
    • WarrantyIdentifier
    • WarrantyStartDate
    • IsExtendedWarranty
    • WarrantyPeriod
    • WarrantyContent
    • PointOfContact
    • Exclusions
  • Qto_BodyGeometryValidation
    • GrossSurfaceArea
    • NetSurfaceArea
    • GrossVolume
    • NetVolume
    • SurfaceGenusBeforeFeatures
    • SurfaceGenusAfterFeatures
  • Qto_DuctSegmentBaseQuantities
    • Length
    • GrossCrossSectionArea
    • NetCrossSectionArea
    • OuterSurfaceArea
    • GrossWeight

7.5.3.27.6 Concept usage

Concept Usage Description
IfcRoot (2)
IfcObjectDefinition (9)
IfcObject (5)
IfcProduct (18)
IfcElement (44)
IfcDistributionElement (4)
IfcDistributionFlowElement (4)
IfcFlowSegment (3)
Click to show 89 hidden inherited concepts
IfcDuctSegment (6)
Material Set General

This concept can be applied to the following resources:

  • Casing - Material from which the duct fitting is constructed.
  • Coating - The outer coating, if applicable.
  • Insulation - The insulating wrapping, if applicable.
  • Lining - The inner lining, if applicable.
Object Typing General

This concept can be applied to the following resources:

Port Nesting General

This concept can be applied with the following combinations:

PortName Flow PredefinedType Description
Inlet SINK NOTDEFINED No description available.
Outlet SOURCE NOTDEFINED No description available.
Table 7.5.3.27.G
Property Sets for Objects General

This concept can be applied to the following resources:

Quantity Sets General

This concept can be applied to the following resources:

Property Sets for Performance General

This concept can be applied to the following resources:

Table 7.5.3.27.F

7.5.3.27.7 Formal representation

ENTITY IfcDuctSegment
SUBTYPE OF (IfcFlowSegment);
PredefinedType : OPTIONAL IfcDuctSegmentTypeEnum;
WHERE
CorrectPredefinedType : NOT(EXISTS(PredefinedType)) OR
(PredefinedType <> IfcDuctSegmentTypeEnum.USERDEFINED) OR
((PredefinedType = IfcDuctSegmentTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType));
CorrectTypeAssigned : (SIZEOF(IsTypedBy) = 0) OR
('IFC4X3_DEV_738df036.IFCDUCTSEGMENTTYPE' IN TYPEOF(SELF\IfcObject.IsTypedBy[1].RelatingType));
END_ENTITY;

7.5.3.27.8 References

Edit on Github


Is this page difficult to understand? Let us know!

7.5.3.27.9 Changelog

7.5.3.27.9.1 IFC4

  • New resource