|Fundament / Flachgründung|
A footing is a part of the foundation of a structure that spreads and transmits the load to the soil. A footing is also characterized as shallow foundation, where the loads are transfered to the ground near the surface.
NOTE Definition according to
ISO 6707-1: stepped construction that spreads the load at the foot of a wall or column.
HISTORY New entity in IFC2x2.
NOTE Slab foundations, also called slab-on-grade, are not instantiated as IfcFooting but as IfcSlab or as its subtype IfcSlabStandardCase, IfcSlabElementedCase with a predefined type of IfcSlabTypeEnum.BASESLAB. Deep foundations, which transfer the loads to subsurface layers, are represented by IfcPile.
Common Use Definitions
The following concepts are inherited at supertypes:
- IfcRoot: Identity, Revision Control
- IfcElement: Box Geometry, Body SurfaceOrSolidModel Geometry, Body SurfaceModel Geometry, Body Tessellation Geometry, Body Brep Geometry, Body AdvancedBrep Geometry, Body CSG Geometry, Mapped Geometry
- IfcBuildingElement: Product Assignment, Spatial Containment, Surface 3D Geometry
The Object Typing concept applies to this entity as shown in Table 642.
Table 642 — IfcFooting Object Typing
Property Sets for Objects
The Property Sets for Objects concept applies to this entity as shown in Table 643.
Table 643 — IfcFooting Property Sets for Objects
The Quantity Sets concept applies to this entity as shown in Table 644.
Table 644 — IfcFooting Quantity Sets
Material Profile Set Usage
The Material Profile Set Usage concept applies to this entity.
The Product Placement concept applies to this entity as shown in Table 645.
Table 645 — IfcFooting Product Placement
The Axis Geometry concept applies to this entity as shown in Table 646.
Table 646 — IfcFooting Axis Geometry
The FootPrint Geometry concept applies to this entity as shown in Table 647.
| || || || |
|FootPrint||GeometricCurveSet|| ||Any collection of points and curves representing the floor plan projection.|
|FootPrint||Annotation2D|| ||Any collection of points and curves, and additional hatching and text representing the floor plan projection.|
Table 647 — IfcFooting FootPrint Geometry
The Body Geometry concept applies to this entity as shown in Table 648.
Table 648 — IfcFooting Body Geometry
XSD Specification: <xs:element name="IfcFooting" type="ifc:IfcFooting" substitutionGroup="ifc:IfcBuildingElement" nillable="true"/>
<xs:attribute name="PredefinedType" type="ifc:IfcFootingTypeEnum" use="optional"/>
|CorrectPredefinedType|| : ||NOT EXISTS(PredefinedType) OR
(PredefinedType <> IfcFootingTypeEnum.USERDEFINED) OR
((PredefinedType = IfcFootingTypeEnum.USERDEFINED) AND EXISTS(SELF\IfcObject.ObjectType));|
|CorrectTypeAssigned|| : ||(SIZEOF(IsTypedBy) = 0) OR
('IFCSTRUCTURALELEMENTSDOMAIN.IFCFOOTINGTYPE' IN TYPEOF(SELF\IfcObject.IsTypedBy.RelatingType))
|CorrectPredefinedType|| : ||
Either the PredefinedType attribute is unset (e.g. because an IfcFootingType is associated), or the inherited attribute ObjectType shall be provided, if the PredefinedType is set to USERDEFINED.
|CorrectTypeAssigned|| : ||
If this occurrence is defined by a type object, the latter has to be an IfcFootingType.
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