IfcPile

Natural language names
deFundament / Tiefgründung
enPile
frPieu
Change log
ItemSPFXMLChangeDescription
IFC2x3 to IFC4
    IfcPile
      OwnerHistoryMODIFIEDInstantiation changed to OPTIONAL.
      PredefinedTypeMODIFIEDInstantiation changed to OPTIONAL.
Semantic definitions at the entity
Entity definition

A pile is a slender timber, concrete, or steel structural element, driven, jetted, or otherwise embedded on end in the ground for the purpose of supporting a load. A pile is also characterized as deep foundation, where the loads are transfered to deeper subsurface layers.

NOTE  Definition according to ISO 6707-1: slender structural member, substantially underground, intended to transmit force(s) into loadbearing strata below the surface of the ground.
NOTE  Shallow foundations, which transfer the loads to the ground near its surface, are represented by IfcFooting.
HISTORY  New entity in IFC2x2.
Attribute definitions
#AttributeTypeCardinalityDescription C
9PredefinedTypeIfcPileTypeEnum[0:1] The predefined generic type of the pile according to function. X
10ConstructionTypeIfcPileConstructionEnum[0:1] Deprecated. X
Formal Propositions
RuleDescription
CorrectPredefinedTypeEither the PredefinedType attribute is unset (e.g. because an IfcPileType is associated), or the inherited attribute ObjectType shall be provided, if the PredefinedType is set to USERDEFINED.
CorrectTypeAssignedIf this occurrence is defined by a type object, the latter has to be an IfcPileType.
Inherited definitions from supertypes
Entity inheritance IfcBuildingElement IfcElement IfcProduct IfcObject IfcObjectDefinition IfcRoot
Attribute inheritance
#AttributeTypeCardinalityDescriptionC
IfcRoot
1GlobalIdIfcGloballyUniqueId[1:1] Assignment of a globally unique identifier within the entire software world. X
2OwnerHistoryIfcOwnerHistory[0:1] Assignment of the information about the current ownership of that object, including owning actor, application, local identification and information captured about the recent changes of the object,
NOTE  only the last modification in stored - either as addition, deletion or modification.
X
3NameIfcLabel[0:1] Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule. X
4DescriptionIfcText[0:1] Optional description, provided for exchanging informative comments.X
IfcObjectDefinition
HasAssignmentsIfcRelAssigns
@RelatedObjects
S[0:?]Reference to the relationship objects, that assign (by an association relationship) other subtypes of IfcObject to this object instance. Examples are the association to products, processes, controls, resources or groups.X
NestsIfcRelNests
@RelatedObjects
S[0:1]References to the decomposition relationship being a nesting. It determines that this object definition is a part within an ordered whole/part decomposition relationship. An object occurrence or type can only be part of a single decomposition (to allow hierarchical strutures only). X
IsNestedByIfcRelNests
@RelatingObject
S[0:?]References to the decomposition relationship being a nesting. It determines that this object definition is the whole within an ordered whole/part decomposition relationship. An object or object type can be nested by several other objects (occurrences or types). X
HasContextIfcRelDeclares
@RelatedDefinitions
S[0:1]References to the context providing context information such as project unit or representation context. It should only be asserted for the uppermost non-spatial object. X
IsDecomposedByIfcRelAggregates
@RelatingObject
S[0:?]References to the decomposition relationship being an aggregation. It determines that this object definition is whole within an unordered whole/part decomposition relationship. An object definitions can be aggregated by several other objects (occurrences or parts). X
DecomposesIfcRelAggregates
@RelatedObjects
S[0:1]References to the decomposition relationship being an aggregation. It determines that this object definition is a part within an unordered whole/part decomposition relationship. An object definitions can only be part of a single decomposition (to allow hierarchical strutures only). X
HasAssociationsIfcRelAssociates
@RelatedObjects
S[0:?]Reference to the relationship objects, that associates external references or other resource definitions to the object.. Examples are the association to library, documentation or classification.X
IfcObject
5ObjectTypeIfcLabel[0:1] The type denotes a particular type that indicates the object further. The use has to be established at the level of instantiable subtypes. In particular it holds the user defined type, if the enumeration of the attribute PredefinedType is set to USERDEFINED.
X
IsDeclaredByIfcRelDefinesByObject
@RelatedObjects
S[0:1]Link to the relationship object pointing to the declaring object that provides the object definitions for this object occurrence. The declaring object has to be part of an object type decomposition. The associated IfcObject, or its subtypes, contains the specific information (as part of a type, or style, definition), that is common to all reflected instances of the declaring IfcObject, or its subtypes. X
DeclaresIfcRelDefinesByObject
@RelatingObject
S[0:?]Link to the relationship object pointing to the reflected object(s) that receives the object definitions. The reflected object has to be part of an object occurrence decomposition. The associated IfcObject, or its subtypes, provides the specific information (as part of a type, or style, definition), that is common to all reflected instances of the declaring IfcObject, or its subtypes. X
IsTypedByIfcRelDefinesByType
@RelatedObjects
S[0:1]Set of relationships to the object type that provides the type definitions for this object occurrence. The then associated IfcTypeObject, or its subtypes, contains the specific information (or type, or style), that is common to all instances of IfcObject, or its subtypes, referring to the same type. X
IsDefinedByIfcRelDefinesByProperties
@RelatedObjects
S[0:?]Set of relationships to property set definitions attached to this object. Those statically or dynamically defined properties contain alphanumeric information content that further defines the object. X
IfcProduct
6ObjectPlacementIfcObjectPlacement[0:1] Placement of the product in space, the placement can either be absolute (relative to the world coordinate system), relative (relative to the object placement of another product), or constraint (e.g. relative to grid axes). It is determined by the various subtypes of IfcObjectPlacement, which includes the axis placement information to determine the transformation for the object coordinate system.X
7RepresentationIfcProductRepresentation[0:1] Reference to the representations of the product, being either a representation (IfcProductRepresentation) or as a special case a shape representations (IfcProductDefinitionShape). The product definition shape provides for multiple geometric representations of the shape property of the object within the same object coordinate system, defined by the object placement.X
ReferencedByIfcRelAssignsToProduct
@RelatingProduct
S[0:?]Reference to the IfcRelAssignsToProduct relationship, by which other products, processes, controls, resources or actors (as subtypes of IfcObjectDefinition) can be related to this product.X
IfcElement
8TagIfcIdentifier[0:1] The tag (or label) identifier at the particular instance of a product, e.g. the serial number, or the position number. It is the identifier at the occurrence level.X
FillsVoidsIfcRelFillsElement
@RelatedBuildingElement
S[0:1]Reference to the IfcRelFillsElement Relationship that puts the element as a filling into the opening created within another element. X
ConnectedToIfcRelConnectsElements
@RelatingElement
S[0:?]Reference to the element connection relationship. The relationship then refers to the other element to which this element is connected to. X
IsInterferedByElementsIfcRelInterferesElements
@RelatedElement
S[0:?]Reference to the interference relationship to indicate the element that is interfered. The relationship, if provided, indicates that this element has an interference with one or many other elements.
NOTE  There is no indication of precedence between IsInterferedByElements and InterferesElements.
X
InterferesElementsIfcRelInterferesElements
@RelatingElement
S[0:?]Reference to the interference relationship to indicate the element that interferes. The relationship, if provided, indicates that this element has an interference with one or many other elements.
NOTE  There is no indication of precedence between IsInterferedByElements and InterferesElements.
X
HasProjectionsIfcRelProjectsElement
@RelatingElement
S[0:?]Projection relationship that adds a feature (using a Boolean union) to the IfcBuildingElement.X
ReferencedInStructuresIfcRelReferencedInSpatialStructure
@RelatedElements
S[0:?]Reference relationship to the spatial structure element, to which the element is additionally associated. This relationship may not be hierarchical, an element may be referenced by zero, one or many spatial structure elements. X
HasOpeningsIfcRelVoidsElement
@RelatingBuildingElement
S[0:?]Reference to the IfcRelVoidsElement relationship that creates an opening in an element. An element can incorporate zero-to-many openings. For each opening, that voids the element, a new relationship IfcRelVoidsElement is generated. X
IsConnectionRealizationIfcRelConnectsWithRealizingElements
@RealizingElements
S[0:?]Reference to the connection relationship with realizing element. The relationship, if provided, assigns this element as the realizing element to the connection, which provides the physical manifestation of the connection relationship. X
ProvidesBoundariesIfcRelSpaceBoundary
@RelatedBuildingElement
S[0:?]Reference to space boundaries by virtue of the objectified relationship IfcRelSpaceBoundary. It defines the concept of an element bounding spaces. X
ConnectedFromIfcRelConnectsElements
@RelatedElement
S[0:?]Reference to the element connection relationship. The relationship then refers to the other element that is connected to this element. X
ContainedInStructureIfcRelContainedInSpatialStructure
@RelatedElements
S[0:1]Containment relationship to the spatial structure element, to which the element is primarily associated. This containment relationship has to be hierachical, i.e. an element may only be assigned directly to zero or one spatial structure. X
HasCoveringsIfcRelCoversBldgElements
@RelatingBuildingElement
S[0:?]Reference to IfcCovering by virtue of the objectified relationship IfcRelCoversBldgElement. It defines the concept of an element having coverings associated.X
IfcBuildingElement
IfcPile
9PredefinedTypeIfcPileTypeEnum[0:1] The predefined generic type of the pile according to function. X
10ConstructionTypeIfcPileConstructionEnum[0:1] Deprecated. X
Definitions applying to Common Use Definitions

 Instance diagram


Concept usage

Object Typing

The Object Typing concept applies to this entity as shown in Table 649.

Type
IfcPileType

Table 649 — IfcPile Object Typing



Property Sets for Objects

The Property Sets for Objects concept applies to this entity as shown in Table 650.

PredefinedTypeNameProperties
 Pset_ConcreteElementGeneralSingle Value
NameValue
ConstructionMethodIfcLabel
StructuralClassIfcLabel
StrengthClassIfcLabel
ExposureClassIfcLabel
ReinforcementVolumeRatioIfcMassDensityMeasure
ReinforcementAreaRatioIfcAreaDensityMeasure
DimensionalAccuracyClassIfcLabel
ConstructionToleranceClassIfcLabel
ConcreteCoverIfcPositiveLengthMeasure
ConcreteCoverAtMainBarsIfcPositiveLengthMeasure
ConcreteCoverAtLinksIfcPositiveLengthMeasure
ReinforcementStrengthClassIfcLabel
 Pset_PileCommonSingle Value
NameValue
ReferenceIfcIdentifier
Enumerated Value
NameValueValue
StatusIfcLabelIfcLabel
 Pset_PrecastConcreteElementFabricationSingle Value
NameValue
TypeDesignatorIfcLabel
ProductionLotIdIfcIdentifier
SerialNumberIfcIdentifier
PieceMarkIfcLabel
AsBuiltLocationNumberIfcLabel
ActualProductionDateIfcDateTime
ActualErectionDateIfcDateTime
 Pset_PrecastConcreteElementGeneralSingle Value
NameValue
TypeDesignatorIfcLabel
CornerChamferIfcPositiveLengthMeasure
ManufacturingToleranceClassIfcLabel
FormStrippingStrengthIfcPressureMeasure
LiftingStrengthIfcPressureMeasure
ReleaseStrengthIfcPressureMeasure
MinimumAllowableSupportLengthIfcPositiveLengthMeasure
InitialTensionIfcPressureMeasure
TendonRelaxationIfcPositiveRatioMeasure
TransportationStrengthIfcPressureMeasure
SupportDuringTransportDescriptionIfcText
HollowCorePluggingIfcLabel
CamberAtMidspanIfcRatioMeasure
BatterAtStartIfcPlaneAngleMeasure
BatterAtEndIfcPlaneAngleMeasure
TwistingIfcPlaneAngleMeasure
ShorteningIfcRatioMeasure
PieceMarkIfcLabel
DesignLocationNumberIfcLabel
 Pset_EnvironmentalImpactIndicatorsSingle Value
NameValue
ReferenceIfcIdentifier
FunctionalUnitReferenceIfcLabel
UnitIfcText
ExpectedServiceLifeIfcTimeMeasure
TotalPrimaryEnergyConsumptionPerUnitIfcEnergyMeasure
WaterConsumptionPerUnitIfcVolumeMeasure
HazardousWastePerUnitIfcMassMeasure
NonHazardousWastePerUnitIfcMassMeasure
ClimateChangePerUnitIfcMassMeasure
AtmosphericAcidificationPerUnitIfcMassMeasure
RenewableEnergyConsumptionPerUnitIfcEnergyMeasure
NonRenewableEnergyConsumptionPerUnitIfcEnergyMeasure
ResourceDepletionPerUnitIfcMassMeasure
InertWastePerUnitIfcMassMeasure
RadioactiveWastePerUnitIfcMassMeasure
StratosphericOzoneLayerDestructionPerUnitIfcMassMeasure
PhotochemicalOzoneFormationPerUnitIfcMassMeasure
EutrophicationPerUnitIfcMassMeasure
Enumerated Value
NameValueValue
LifeCyclePhaseIfcLabelIfcLabel
 Pset_EnvironmentalImpactValuesSingle Value
NameValue
TotalPrimaryEnergyConsumptionIfcEnergyMeasure
WaterConsumptionIfcVolumeMeasure
HazardousWasteIfcMassMeasure
NonHazardousWasteIfcMassMeasure
ClimateChangeIfcMassMeasure
AtmosphericAcidificationIfcMassMeasure
RenewableEnergyConsumptionIfcEnergyMeasure
NonRenewableEnergyConsumptionIfcEnergyMeasure
ResourceDepletionIfcMassMeasure
InertWasteIfcMassMeasure
RadioactiveWasteIfcMassMeasure
StratosphericOzoneLayerDestructionIfcMassMeasure
PhotochemicalOzoneFormationIfcMassMeasure
EutrophicationIfcMassMeasure
LeadInTimeIfcDuration
DurationIfcDuration
LeadOutTime 
 Pset_ConditionSingle Value
NameValue
AssessmentDateIfcDate
AssessmentConditionIfcLabel
AssessmentDescriptionIfcText
 Pset_ManufacturerOccurrenceSingle Value
NameValue
AcquisitionDateIfcDate
BarCodeIfcIdentifier
SerialNumberIfcIdentifier
BatchReferenceIfcIdentifier
Enumerated Value
NameValueValue
AssemblyPlaceIfcLabelIfcLabel
 Pset_ManufacturerTypeInformationSingle Value
NameValue
GlobalTradeItemNumberIfcIdentifier
ArticleNumberIfcIdentifier
ModelReferenceIfcLabel
ModelLabelIfcLabel
ManufacturerIfcLabel
ProductionYearIfcLabel
Enumerated Value
NameValueValue
AssemblyPlaceIfcLabelIfcLabel
 Pset_ServiceLifeSingle Value
NameValue
MeanTimeBetweenFailureIfcDuration
Bounded Value
NameValueValue
ServiceLifeDurationIfcDurationIfcDuration
 Pset_WarrantySingle Value
NameValue
WarrantyIdentifierIfcIdentifier
WarrantyStartDateIfcDate
WarrantyEndDateIfcDate
IsExtendedWarrantyIfcBoolean
WarrantyPeriodIfcTimeMeasure
WarrantyContentIfcText
ExclusionsIfcText

Table 650 — IfcPile Property Sets for Objects



Quantity Sets

The Quantity Sets concept applies to this entity as shown in Table 651.

Name
Qto_PileBaseQuantities

Table 651 — IfcPile Quantity Sets



Material Profile Set Usage

The Material Profile Set Usage concept applies to this entity.



Product Local Placement

The Product Local Placement concept applies to this entity as shown in Table 652.

TypeRelativeDescription
IfcLocalPlacementIfcLocalPlacementRelative placement according to position and rotation relative to container.
IfcLocalPlacementAbsolute placement according to position and rotation of world coordinate system.
IfcGridPlacementPlacement according to grid intersection.

Table 652 — IfcPile Product Local Placement



Axis Geometry

The Axis Geometry concept applies to this entity as shown in Table 653.

IdentifierTypeItems
  

Table 653 — IfcPile Axis Geometry



FootPrint Geometry

The FootPrint Geometry concept applies to this entity as shown in Table 654.

IdentifierTypeItemsDescription
   
FootPrintGeometricCurveSetAny collection of points and curves representing the floor plan projection.
FootPrintAnnotation2DAny collection of points and curves, and additional hatching and text representing the floor plan projection.

Table 654 — IfcPile FootPrint Geometry



Body Geometry

The Body Geometry concept applies to this entity as shown in Table 655.

IdentifierType
  

Table 655 — IfcPile Body Geometry



Concept inheritance

#ConceptModel View
IfcRoot
Software IdentityCommon Use Definitions
Revision ControlCommon Use Definitions
IfcObject
Object Occurrence Predefined TypeCommon Use Definitions
IfcElement
Box GeometryCommon Use Definitions
Body SurfaceOrSolidModel GeometryCommon Use Definitions
Body SurfaceModel GeometryCommon Use Definitions
Body Tessellation GeometryCommon Use Definitions
Body Brep GeometryCommon Use Definitions
Body AdvancedBrep GeometryCommon Use Definitions
Body CSG GeometryCommon Use Definitions
Mapped GeometryCommon Use Definitions
Mesh GeometryCommon Use Definitions
IfcBuildingElement
Product AssignmentCommon Use Definitions
Spatial ContainmentCommon Use Definitions
Surface 3D GeometryCommon Use Definitions
IfcPile
Object TypingCommon Use Definitions
Property Sets for ObjectsCommon Use Definitions
Quantity SetsCommon Use Definitions
Material Profile Set UsageCommon Use Definitions
Product Local PlacementCommon Use Definitions
Axis GeometryCommon Use Definitions
FootPrint GeometryCommon Use Definitions
Body GeometryCommon Use Definitions
Formal representations
XSD Specification
 <xs:element name="IfcPile" type="ifc:IfcPile" substitutionGroup="ifc:IfcBuildingElement" nillable="true"/>
 <xs:complexType name="IfcPile">
  <xs:complexContent>
   <xs:extension base="ifc:IfcBuildingElement">
    <xs:attribute name="PredefinedType" type="ifc:IfcPileTypeEnum" use="optional"/>
    <xs:attribute name="ConstructionType" type="ifc:IfcPileConstructionEnum" use="optional"/>
   </xs:extension>
  </xs:complexContent>
 </xs:complexType>
EXPRESS Specification
ENTITY IfcPile
 SUBTYPE OF (IfcBuildingElement);
  PredefinedType : OPTIONAL IfcPileTypeEnum;
  ConstructionType : OPTIONAL IfcPileConstructionEnum;
 WHERE
  CorrectPredefinedType : NOT EXISTS(PredefinedType) OR (PredefinedType <> IfcPileTypeEnum.USERDEFINED) OR ((PredefinedType = IfcPileTypeEnum.USERDEFINED) AND EXISTS(SELF\IfcObject.ObjectType));
  CorrectTypeAssigned : (SIZEOF(IsTypedBy) = 0) OR ('IFCSTRUCTURALELEMENTSDOMAIN.IFCPILETYPE' IN TYPEOF(SELF\IfcObject.IsTypedBy[1].RelatingType));
END_ENTITY;

Link to EXPRESS-G diagram EXPRESS-G diagram

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