IFC 4.3.2.20250327 (IFC4X3_ADD2) under development

8.19.3.4 IfcBoundaryNodeCondition

8.19.3.4.1 Semantic definition

Describes linearly elastic support conditions or connection conditions.

Applicability:

  • Point supports and connections.

8.19.3.4.2 Entity inheritance

8.19.3.4.3 Attributes

# Attribute Type Description
IfcBoundaryCondition (1)
Click to show 1 hidden inherited attributes
IfcBoundaryNodeCondition (6)
2 TranslationalStiffnessX OPTIONAL IfcTranslationalStiffnessSelect

Translational stiffness value in x-direction of the coordinate system defined by the instance which uses this resource object.
3 TranslationalStiffnessY OPTIONAL IfcTranslationalStiffnessSelect

Translational stiffness value in y-direction of the coordinate system defined by the instance which uses this resource object.
4 TranslationalStiffnessZ OPTIONAL IfcTranslationalStiffnessSelect

Translational stiffness value in z-direction of the coordinate system defined by the instance which uses this resource object.
5 RotationalStiffnessX OPTIONAL IfcRotationalStiffnessSelect

Rotational stiffness value about the x-axis of the coordinate system defined by the instance which uses this resource object.
6 RotationalStiffnessY OPTIONAL IfcRotationalStiffnessSelect

Rotational stiffness value about the y-axis of the coordinate system defined by the instance which uses this resource object.
7 RotationalStiffnessZ OPTIONAL IfcRotationalStiffnessSelect

Rotational stiffness value about the z-axis of the coordinate system defined by the instance which uses this resource object.
Table 8.19.3.4.B

8.19.3.4.4 Examples

8.19.3.4.5 Formal representation 

ENTITY IfcBoundaryNodeCondition
 SUPERTYPE OF (ONEOF
	(IfcBoundaryNodeConditionWarping))
 SUBTYPE OF (IfcBoundaryCondition);
	TranslationalStiffnessX : OPTIONAL IfcTranslationalStiffnessSelect;
	TranslationalStiffnessY : OPTIONAL IfcTranslationalStiffnessSelect;
	TranslationalStiffnessZ : OPTIONAL IfcTranslationalStiffnessSelect;
	RotationalStiffnessX : OPTIONAL IfcRotationalStiffnessSelect;
	RotationalStiffnessY : OPTIONAL IfcRotationalStiffnessSelect;
	RotationalStiffnessZ : OPTIONAL IfcRotationalStiffnessSelect;
END_ENTITY;

8.19.3.4.6 References

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3 contributor(s):
Last change: Improve definition split (#876) * bring back headers headers were previously removed by mistake, now bringing them back * add new lines and rename the tag add the word 'short' in it * unify newlines make exactly one newline before and two after the tag * resolving typos Because bringing back headers required to go back in time to previous version, I'm now re-resolving the issues: #861, #860, #856 by ArturTomczak on 7/16/2024, 2:07:28 PM

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8.19.3.4.7 Changelog

8.19.3.4.7.1 IFC4