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7.10.3.19 IfcStructuralPointAction

7.10.3.19.1 Semantic definition

This entity defines an action which acts on a point. A point action is typically connected with a point connection. It may also be connected with a curve member or curve connection, or surface member or surface connection.

*Coordinate Systems*:

See definitions at IfcStructuralActivity.

*Topology Use Definitions*:

Standard Case: If connected with a point item, instances of IfcStructuralPointAction shall not have an ObjectPlacement nor a Representation. It is implied that the placement and representation of the action is the same as the structural item.

Special Case 1: If connected with a curve item or surface item, instances of IfcStructuralPointAction shall have an ObjectPlacement and Representation, containing an IfcVertexPoint. See IfcStructuralActivity for further definitions.

Special Case 2: If not connected with a structural item (which may happen in an incomplete or conceptual model), a point action should have an ObjectPlacement and Representation, containing an IfcVertexPoint. See IfcStructuralActivity for further definitions.

7.10.3.19.2 Entity inheritance

7.10.3.19.3 Attributes

# Attribute Type Description
IfcRoot (4)
IfcObjectDefinition (7)
IfcObject (5)
IfcProduct (5)
IfcStructuralActivity (3)
Click to show 24 hidden inherited attributes
IfcStructuralAction (1)
10 DestabilizingLoad OPTIONAL IfcBoolean

Indicates if this action may cause a stability problem. If it is 'FALSE', no further investigations regarding stability problems are necessary.

Table 7.10.3.19.A

7.10.3.19.4 Formal propositions

Name Description
SuitableLoadType

A structural point action shall place either a single force or a single displacement.

SIZEOF(['IFC4X3_DEV_738df036.IFCSTRUCTURALLOADSINGLEFORCE', 'IFC4X3_DEV_738df036.IFCSTRUCTURALLOADSINGLEDISPLACEMENT'] * TYPEOF(SELF\IfcStructuralActivity.AppliedLoad)) = 1
Table 7.10.3.19.B

7.10.3.19.5 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

7.10.3.19.6 Concept usage

Concept Usage Description
IfcRoot (2)
IfcObjectDefinition (9)
IfcObject (5)
IfcProduct (18)
Click to show 34 hidden inherited concepts
Table 7.10.3.19.C

7.10.3.19.7 Formal representation

ENTITY IfcStructuralPointAction
SUBTYPE OF (IfcStructuralAction);
WHERE
SuitableLoadType : SIZEOF(['IFC4X3_DEV_738df036.IFCSTRUCTURALLOADSINGLEFORCE', 'IFC4X3_DEV_738df036.IFCSTRUCTURALLOADSINGLEDISPLACEMENT'] * TYPEOF(SELF\IfcStructuralActivity.AppliedLoad)) = 1;
END_ENTITY;

7.10.3.19.8 References

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7.10.3.19.9 Changelog

7.10.3.19.9.1 IFC4

  • where rule, SuitableLoadType
  • where rule, WR61