IfcBoundaryFaceCondition
Definition
from IAI: The entity IfcBoundaryFaceCondition
describes boundary conditions that can be applied to structural face
connections, either directly for the connection (e.g. the connecting
face) or for the relation between a structural member and the
connection.
The following conventions to
the values of the LinearStiffnessByArea[X,Y,Z]
apply:
- value (-1.) represents an
infinitive large value – or a fixed connectivity with
infinitive stiffness
- value zero (0.), represents
no stiffness or a free connectivity
- any other value represents a
finitive stiffness or spring connectivity in that direction or rotation
- value NIL ($) represents an
unknown connectivity condition
NOTE: Instances of the entity IfcBoundaryFaceCondition
are used e.g., to define the boundary condition for instances of IfcStructuralFaceConnection
or IfcRelConnectsStructuralMember
pointing to a structural face connection.
HISTORY: New entity
in Release IFC2x edition 2.
EXPRESS specification:
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| ENTITY IfcBoundaryFaceCondition
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Attribute definitions:
| LinearStiffnessByAreaX
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:
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Linear stiffness value in x-direction of the coordinate system defined by the instance which uses this
resource object.
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| LinearStiffnessByAreaY
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Linear stiffness value in y-direction of the coordinate system defined by the instance which uses this
resource object.
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| LinearStiffnessByAreaZ
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Linear stiffness value in z-direction of the coordinate system defined by the instance which uses this
resource object.
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Inheritance graph
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| ENTITY IfcBoundaryFaceCondition;
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