6.4.3.2 IfcFurniture

Mobilier
Mobiliar

Furniture defines complete furnishings such as a table, desk, chair, or cabinet, which may or may not be permanently attached to a building structure.

Occurrences of furniture that are built in (where the property Pset_FurnitureTypeCommon.IsBuiltIn is asserted to be TRUE) should have their connection relationship with a building element occurrence defined through the IfcRelConnectsElements relationship.

HISTORY  New entity in IFC2x2.

Common Use Definitions

The following concepts are inherited at supertypes:

 Instance diagram

Object Typing

The Object Typing concept applies to this entity as shown in Table 235.
Type
IfcFurnitureType

Table 235 — IfcFurniture Object Typing



Property Sets for Objects

The Property Sets for Objects concept applies to this entity as shown in Table 236.
PredefinedTypeName
CHAIRPset_FurnitureTypeChair
 Pset_FurnitureTypeCommon
DESKPset_FurnitureTypeDesk
FILECABINETPset_FurnitureTypeFileCabinet
TABLEPset_FurnitureTypeTable
 Pset_Condition
 Pset_EnvironmentalImpactIndicators
 Pset_EnvironmentalImpactValues
 Pset_ManufacturerOccurrence
 Pset_ManufacturerTypeInformation
 Pset_PackingInstructions
 Pset_ServiceLife
 Pset_Warranty

Table 236 — IfcFurniture Property Sets for Objects



Material Constituents

The Material Constituents concept applies to this entity as shown in Table 237.
NameDescription
FinishThe finish, typically at visible aspects of the furniture.
FrameThe frame from which the object is constructed.
HardwareFiniish hardware such as knobs or handles.
PaddingPadding such as cushions.
PanelPanels such as glass.

Table 237 — IfcFurniture Material Constituents



Object Aggregation

The Object Aggregation concept applies to this entity as shown in Table 238.
PredefinedTypeRelatedObjectsDescription
 IfcSystemFurnitureElementModular furniture may be aggregated into components.

Table 238 — IfcFurniture Object Aggregation




XSD Specification:

 <xs:element name="IfcFurniture" type="ifc:IfcFurniture" substitutionGroup="ifc:IfcFurnishingElement" nillable="true"/>
 <xs:complexType name="IfcFurniture">
  <xs:complexContent>
   <xs:extension base="ifc:IfcFurnishingElement">
    <xs:attribute name="PredefinedType" type="ifc:IfcFurnitureTypeEnum" use="optional"/>
   </xs:extension>
  </xs:complexContent>
 </xs:complexType>

EXPRESS Specification:

ENTITY IfcFurniture
SUBTYPE OF IfcFurnishingElement;
PredefinedType : OPTIONAL IfcFurnitureTypeEnum;
WHERE
CorrectPredefinedType : NOT(EXISTS(PredefinedType)) OR (PredefinedType <> IfcFurnitureTypeEnum.USERDEFINED) OR ((PredefinedType = IfcFurnitureTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType));
CorrectTypeAssigned : (SIZEOF(IsTypedBy) = 0) OR ('IFCSHAREDFACILITIESELEMENTS.IFCFURNITURETYPE' IN TYPEOF(SELF\IfcObject.IsTypedBy[1].RelatingType));
END_ENTITY;

Link to EXPRESS-G diagram EXPRESS-G diagram

Inheritance Graph:

ENTITY IfcFurniture
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 IfcObject
ObjectType : OPTIONAL IfcLabel;
INVERSE
IsDeclaredBy : SET [0:1] OF IfcRelDefinesByObject FOR RelatedObjects;
Declares : SET OF IfcRelDefinesByObject FOR RelatingObject;
IsTypedBy : SET [0:1] OF IfcRelDefinesByType FOR RelatedObjects;
IsDefinedBy : SET OF IfcRelDefinesByProperties 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;
IsInterferedByElements : SET OF IfcRelInterferesElements FOR RelatedElement;
InterferesElements : SET OF IfcRelInterferesElements FOR RelatingElement;
HasProjections : SET OF IfcRelProjectsElement FOR RelatingElement;
ReferencedInStructures : SET OF IfcRelReferencedInSpatialStructure FOR RelatedElements;
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 IfcFurnishingElement
ENTITY IfcFurniture
PredefinedType : OPTIONAL IfcFurnitureTypeEnum;
END_ENTITY;

Link to this page  Link to this page