IFC 4.3.2.20250327 (IFC4X3_ADD2) under development

7.10.3.25 IfcStructuralSurfaceConnection

7.10.3.25.1 Semantic definition

Instances of IfcStructuralSurfaceConnection describe face 'nodes', i.e. faces where two or more surface members are joined, or face supports. Face surfaces may be planar or curved.

*Coordinate Systems*:

See definitions at IfcStructuralItem. The local coordinate system is established by the reference surface given by topology representation.

*Topology Use Definitions*:

Instances of IfcStructuralSurfaceConnection shall have a topology representation which consists of one IfcFaceSurface, representing the reference surface of the surface connection. See definitions at IfcStructuralItem for further specifications.

7.10.3.25.2 Entity inheritance

7.10.3.25.3 Attributes

# Attribute Type Description
IfcRoot (4)
IfcObjectDefinition (7)
IfcObject (5)
IfcProduct (5)
IfcStructuralItem (1)
Click to show 22 hidden inherited attributes
IfcStructuralConnection (2)
8 AppliedCondition OPTIONAL IfcBoundaryCondition

Optional boundary conditions which define support conditions of this connection object, given in local coordinate directions of the connection object. If left unspecified, the connection object is assumed to have no supports besides being connected with members.

ConnectsStructuralMembers SET [1:?] OF IfcRelConnectsStructuralMember FOR RelatedStructuralConnection

References to the IfcRelConnectsStructuralMembers relationship by which structural members can be associated to structural connections.

Table 7.10.3.25.A

7.10.3.25.4 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

7.10.3.25.5 Concept usage

Concept Usage Description
IfcRoot (2)
IfcObjectDefinition (9)
IfcObject (5)
IfcProduct (18)
Click to show 34 hidden inherited concepts
Table 7.10.3.25.B

7.10.3.25.6 Formal representation

ENTITY IfcStructuralSurfaceConnection
SUBTYPE OF (IfcStructuralConnection);
END_ENTITY;

7.10.3.25.7 References