IfcBeamType

Definition from IAI: The element type (IfcBeamType) defines a list of commonly shared property set definitions of a beam and an optional set of product representations. It is used to define a beam specification (i.e. the specific product information that is common to all occurrences of that product type).

NOTE: The product representations are defined as representation maps (at the level of the supertype IfcTypeProduct, which gets assigned by an element occurrence instance through the IfcShapeRepresentation.Item[1] being an IfcMappedItem.

A beam type is used to define the common properties of a certain type of beam that may be applied to many instances of that type to assign a specific style. Beam types may be exchanged without being already assigned to occurrences.

The occurrences of the IfcBeamType are represented by instances of IfcBeam.

HISTORY New entity in Release IFC2x Edition 2.

EXPRESS specification:

ENTITY IfcBeamType

SUBTYPE OF (

IfcBuildingElementType);

PredefinedType

IfcBeamTypeEnum;

END_ENTITY;

Attribute definitions:

PredefinedType

Identifies the predefined types of a beam element from which the type required may be set.

Inheritance graph

ENTITY IfcBeamType;

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 IfcTypeObject;

ApplicableOccurrence

OPTIONAL IfcLabel;

HasPropertySets

OPTIONAL SET [1:?] OF IfcPropertySetDefinition;

INVERSE

ObjectTypeOf

SET [0:1] OF IfcRelDefinesByType FOR RelatingType;

ENTITY IfcTypeProduct;

RepresentationMaps

OPTIONAL LIST [1:?] OF UNIQUE IfcRepresentationMap;

Tag

OPTIONAL IfcLabel;

ENTITY IfcElementType;

ElementType

OPTIONAL IfcLabel;

ENTITY IfcBuildingElementType;

ENTITY IfcBeamType;

PredefinedType

IfcBeamTypeEnum;

END_ENTITY;