IFC 4.3.2.20250327 (IFC4X3_ADD2) under development

7.10.3.11 IfcStructuralCurveMemberVarying

7.10.3.11.1 Semantic definition

This entity describes edge members with varying profile properties. Each instance of IfcStructuralCurveMemberVarying is composed of two or more instances of IfcStructuralCurveMember with differing profile properties. These subordinate members relate to the instance of IfcStructuralCurveMemberVarying by IfcRelAggregates.

*Coordinate Systems*:

See definitions at IfcStructuralItem and IfcStructuralCurveMember. The local coordinates of the aggregate are derived from those of its parts. Length measures in local x direction of the aggregate depend on continuity and lengths of the parts. The Axis of the aggregate shall be the same as the Axis of the part at the start of the aggregate.

*Material Use Definition*

Only the individual parts (direct instances of IfcStructuralCurveMember) carry material and profile information.

7.10.3.11.2 Entity inheritance

7.10.3.11.3 Attributes

# Attribute Type Description
IfcRoot (4)
IfcObjectDefinition (7)
IfcObject (5)
IfcProduct (5)
IfcStructuralItem (1)
IfcStructuralMember (1)
Click to show 23 hidden inherited attributes
IfcStructuralCurveMember (2)
8 PredefinedType IfcStructuralCurveMemberTypeEnum

Type of member with respect to its load carrying behavior in this analysis idealization.

9 Axis IfcDirection

Direction which is used in the definition of the local z axis. Axis is specified relative to the so-called global coordinate system, i.e. the SELF\IfcProduct.ObjectPlacement.

Table 7.10.3.11.A

7.10.3.11.4 Property sets

  • Pset_Risk
    • RiskName
    • RiskType
    • NatureOfRisk
    • RiskAssessmentMethodology
    • UnmitigatedRiskLikelihood
    • UnmitigatedRiskConsequence
    • UnmitigatedRiskSignificance
    • MitigationPlanned
    • MitigatedRiskLikelihood
    • MitigatedRiskConsequence
    • MitigatedRiskSignificance
    • MitigationProposed
    • AssociatedProduct
    • AssociatedActivity
    • AssociatedLocation
  • 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

7.10.3.11.5 Concept usage

Concept Usage Description
IfcRoot (2)
IfcObjectDefinition (9)
IfcObject (5)
IfcProduct (18)
IfcStructuralCurveMember (3)
Click to show 37 hidden inherited concepts
Table 7.10.3.11.B

7.10.3.11.6 Formal representation

ENTITY IfcStructuralCurveMemberVarying
SUBTYPE OF (IfcStructuralCurveMember);
END_ENTITY;

7.10.3.11.7 References