IfcFastener

Definition from IAI: Representations of fixing parts which are used as fasteners to connect or join elements with other elements.

HISTORY New entity in IFC Release 2x2

General usage

The exact type information of the IfcFastener is given in the ObjectType attribute inherited from IfcObject. Standard type designations are provided for guideline below. Note that mechanical fasteners are represented by instances of the subtype IfcMechanicalFastener.

Standard fastener type designation	Description
'Glue'	A fastening connection where glue is used to join together elements.
'Weld'	A weld seam used to join together building elements.
'Jointing mortar'	Mortar used to join together building elements. The strength of the joint may be taken into consideration in calculations.

Geometry Use Definitions:

The geometric representation of IfcFastener is given by the IfcProductDefinitionShape, allowing multiple geometric representations. Included are:

Local Placement
The use of local placement is defined in the supertype IfcElementComponent.

Standard Geometric Representation
The use of Standard Geometric Representations is defined in the supertype IfcElementComponent.

EXPRESS specification:

ENTITY IfcFastener

SUPERTYPE OF

(IfcMechanicalFastener)

SUBTYPE OF (

IfcElementComponent);

END_ENTITY;

Inheritance graph

ENTITY IfcFastener;

ENTITY IfcRoot;

GlobalId

IfcGloballyUniqueId;

OwnerHistory

IfcOwnerHistory;

Name

OPTIONAL IfcLabel;

Description

OPTIONAL IfcText;

ENTITY IfcObjectDefinition;

INVERSE

HasAssignments

SET OF IfcRelAssigns FOR RelatedObjects;

IsDecomposedBy

SET OF IfcRelDecomposes FOR RelatingObject;

Decomposes

SET [0:1] OF IfcRelDecomposes FOR RelatedObjects;

HasAssociations

SET OF IfcRelAssociates FOR RelatedObjects;

ENTITY IfcObject;

ObjectType

OPTIONAL IfcLabel;

INVERSE

IsDefinedBy

SET OF IfcRelDefines FOR RelatedObjects;

ENTITY IfcProduct;

ObjectPlacement

OPTIONAL IfcObjectPlacement;

Representation

OPTIONAL IfcProductRepresentation;

INVERSE

ReferencedBy

SET OF IfcRelAssignsToProduct FOR RelatingProduct;

ENTITY IfcElement;

Tag

OPTIONAL IfcIdentifier;

INVERSE

FillsVoids

SET [0:1] OF IfcRelFillsElement FOR RelatedBuildingElement;

ConnectedTo

SET OF IfcRelConnectsElements FOR RelatingElement;

HasCoverings

SET OF IfcRelCoversBldgElements FOR RelatingBuildingElement;

HasProjections

SET OF IfcRelProjectsElement FOR RelatingElement;

HasStructuralMember

SET OF IfcRelConnectsStructuralElement FOR RelatingElement;

ReferencedInStructures

SET OF IfcRelReferencedInSpatialStructure FOR RelatedElements;

HasPorts

SET OF IfcRelConnectsPortToElement FOR RelatedElement;

HasOpenings

SET OF IfcRelVoidsElement FOR RelatingBuildingElement;

IsConnectionRealization

SET OF IfcRelConnectsWithRealizingElements FOR RealizingElements;

ProvidesBoundaries

SET OF IfcRelSpaceBoundary FOR RelatedBuildingElement;

ConnectedFrom

SET OF IfcRelConnectsElements FOR RelatedElement;

ContainedInStructure

SET [0:1] OF IfcRelContainedInSpatialStructure FOR RelatedElements;

ENTITY IfcElementComponent;

ENTITY IfcFastener;

END_ENTITY;