6.1.3.15 IfcCurtainWallType

Vorhangfassade - Typ
Type de mur rideau

The building element type IfcCurtainWallType defines commonly shared information for occurrences of curtain walls. The set of shared information may include:

It is used to define a curtain wall type specification indicating the specific product information that is common to all occurrences of that product type. The IfcCurtainWallType may be declared within IfcProject or IfcProjectLibrary using IfcRelDeclares and may be exchanged with or without occurrences of the type. Occurrences of IfcCurtainWallType are represented by instances of IfcCurtainWall. Refer to the documentation at IfcCurtainWall for supported property sets, materials, and composition.

HISTORY  New entity in IFC2x3.

Common Use Definitions

The following concepts are inherited at supertypes:

 Instance diagram

Type Body Geometry

The Type Body Geometry concept applies to this entity.




XSD Specification:

 <xs:element name="IfcCurtainWallType" type="ifc:IfcCurtainWallType" substitutionGroup="ifc:IfcBuildingElementType" nillable="true"/>
 <xs:complexType name="IfcCurtainWallType">
  <xs:complexContent>
   <xs:extension base="ifc:IfcBuildingElementType">
    <xs:attribute name="PredefinedType" type="ifc:IfcCurtainWallTypeEnum" use="optional"/>
   </xs:extension>
  </xs:complexContent>
 </xs:complexType>

EXPRESS Specification:

ENTITY IfcCurtainWallType
SUBTYPE OF IfcBuildingElementType;
PredefinedType : IfcCurtainWallTypeEnum;
WHERE
CorrectPredefinedType : (PredefinedType <> IfcCurtainWallTypeEnum.USERDEFINED) OR ((PredefinedType = IfcCurtainWallTypeEnum.USERDEFINED) AND EXISTS(SELF\IfcElementType.ElementType));
END_ENTITY;

Link to EXPRESS-G diagram EXPRESS-G diagram

Attribute Definitions:

PredefinedType : Identifies the predefined types of a curtain wall element from which the type required may be set.

Formal Propositions:

CorrectPredefinedType : The inherited attribute ElementType shall be provided, if the PredefinedType is set to USERDEFINED.

Inheritance Graph:

ENTITY IfcCurtainWallType
ENTITY IfcRoot
GlobalId : IfcGloballyUniqueId;
OwnerHistory : OPTIONAL IfcOwnerHistory;
Name : OPTIONAL IfcLabel;
Description : OPTIONAL IfcText;
ENTITY IfcObjectDefinition
INVERSE
HasAssignments : SET OF IfcRelAssigns FOR RelatedObjects;
Nests : SET [0:1] OF IfcRelNests FOR RelatedObjects;
IsNestedBy : SET OF IfcRelNests FOR RelatingObject;
HasContext : SET [0:1] OF IfcRelDeclares FOR RelatedDefinitions;
IsDecomposedBy : SET OF IfcRelAggregates FOR RelatingObject;
Decomposes : SET [0:1] OF IfcRelAggregates FOR RelatedObjects;
HasAssociations : SET OF IfcRelAssociates FOR RelatedObjects;
ENTITY IfcTypeObject
ApplicableOccurrence : OPTIONAL IfcIdentifier;
HasPropertySets : OPTIONAL SET [1:?] OF IfcPropertySetDefinition;
INVERSE
Types : SET [0:1] OF IfcRelDefinesByType FOR RelatingType;
ENTITY IfcTypeProduct
RepresentationMaps : OPTIONAL LIST [1:?] OF UNIQUE IfcRepresentationMap;
Tag : OPTIONAL IfcLabel;
INVERSE
ReferencedBy : SET OF IfcRelAssignsToProduct FOR RelatingProduct;
ENTITY IfcElementType
ElementType : OPTIONAL IfcLabel;
ENTITY IfcBuildingElementType
ENTITY IfcCurtainWallType
PredefinedType : IfcCurtainWallTypeEnum;
END_ENTITY;

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