 | Bewehrung |
 | Reinforcing Element |
 | Elément d'armature |
A reinforcing element represents bars, wires, strands, meshes, tendons, and other components embedded in concrete in such a manner that the reinforcement and the concrete act together in resisting forces.
NOTE Definition according to ISO 6707-1: rod(s), bar(s), fabric, fibres, wires and cable(s) added to give additional strength or support to a material or component.
One or several instances of subtypes of IfcReinforcingElement should always be accompanied by a defining instance of a respective subtype of IfcReinforcingElementType. The type object holds shape and material information.
HISTORY New entity in IFC2x2
IFC4 CHANGE Attribute SteelGrade deprecated.
| # | Attribute | Type | Cardinality | Description | R |
|---|---|---|---|---|---|
| 9 | SteelGrade | - | This attribute is out of scope for this model view definition and shall not be set. |
| # | Attribute | Type | Cardinality | Description | R |
|---|---|---|---|---|---|
| IfcRoot | |||||
| 1 | GlobalId | IfcGloballyUniqueId | Assignment of a globally unique identifier within the entire software world. | X | |
| 2 | OwnerHistory | IfcOwnerHistory | ? |
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. IFC4 CHANGE The attribute has been changed to be OPTIONAL. | X |
| 3 | Name | IfcLabel | ? | 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 |
| 4 | Description | IfcText | ? | Optional description, provided for exchanging informative comments. | X |
| IfcObjectDefinition | |||||
| HasAssignments | IfcRelAssigns @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 | |
| Nests | IfcRelNests @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).
IFC4 CHANGE The inverse attribute datatype has been added and separated from Decomposes defined at IfcObjectDefinition. | ||
| IsNestedBy | IfcRelNests @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).
IFC4 CHANGE The inverse attribute datatype has been added and separated from IsDecomposedBy defined at IfcObjectDefinition. | X | |
| HasContext | IfcRelDeclares @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.
IFC4 CHANGE The inverse attribute datatype has been added. | ||
| IsDecomposedBy | IfcRelAggregates @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).
IFC4 CHANGE The inverse attribute datatype has been changed from the supertype IfcRelDecomposes to subtype IfcRelAggregates. | X | |
| Decomposes | IfcRelAggregates @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).
IFC4 CHANGE The inverse attribute datatype has been changed from the supertype IfcRelDecomposes to subtype IfcRelAggregates. | X | |
| HasAssociations | IfcRelAssociates @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 | |||||
| 5 | ObjectType | IfcLabel | ? |
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 |
| IsTypedBy | IfcRelDefinesByType @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.
IFC4 CHANGE New inverse relationship, the link to IfcRelDefinesByType had previously be included in the inverse relationship IfcRelDefines. Change made with upward compatibility for file based exchange. | X | |
| IsDefinedBy | IfcRelDefinesByProperties @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.
IFC4 CHANGE The data type has been changed from IfcRelDefines to IfcRelDefinesByProperties with upward compatibility for file based exchange. | X | |
| IfcProduct | |||||
| 6 | ObjectPlacement | IfcObjectPlacement | ? | 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 |
| 7 | Representation | IfcProductRepresentation | ? | 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 |
| IfcElement | |||||
| 8 | Tag | IfcIdentifier | ? | 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 |
| FillsVoids | IfcRelFillsElement @RelatedBuildingElement | S[0:1] | Reference to the IfcRelFillsElement Relationship that puts the element as a filling into the opening created within another element. | ||
| HasOpenings | IfcRelVoidsElement @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 | |
| ContainedInStructure | IfcRelContainedInSpatialStructure @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 | |
| IfcElementComponent | |||||
| IfcReinforcingElement | |||||
| 9 | SteelGrade | - | This attribute is out of scope for this model view definition and shall not be set. | ||
Body AdvancedSwept DiskSolid PolyCurve Geometry
The Body Advanced Swept Disk PolyCurve Geometry concept applies to this entity.
The default geometric item to exchange the body shape representation of reinforcing elements is the IfcSweptDiskSolid using the IfcIndexedPolyCurve to describe the Directrix.
Element Voiding
The Element Voiding concept (defined at a supertype) does NOT apply to this entity.
The various subtypes of IfcReinforcingElement do not support the concept of voiding - there shall no voids (openings, cut-outs, recesses) being defined as shape features for reinforcing elements.
Quantity Sets
The Quantity Sets concept template applies to this entity as shown in Table 331.
| ||||||||||||||||||||||||
Table 331 — IfcReinforcingElement Quantity Sets |
Instance diagram
<?xml version="1.0"?>
<ConceptRoot xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" uuid="3334ca53-2094-46a0-b7c8-1c7adacc1d69" name="IfcReinforcingElement" status="sample" applicableRootEntity="IfcReinforcingElement">
<Applicability uuid="00000000-0000-0000-0000-000000000000" status="sample">
<Template ref="b68fdc17-1d4a-4a04-bf53-8eb17ec88169" />
<TemplateRules operator="and" />
</Applicability>
<Concepts>
<Concept uuid="89a66378-b01c-4745-86f1-5a6da4f5099f" name="Body AdvancedSwept DiskSolid PolyCurve Geometry" status="sample" override="false">
<Template ref="1c224429-1512-4000-bfff-19fd3129f1ab" />
</Concept>
<Concept uuid="a3745e10-c5a3-4e2e-9767-a333db83162f" name="Element Voiding" status="sample" override="true">
<Template ref="b9005e79-b5c5-4c0b-9d86-046c21ad420d" />
</Concept>
<Concept uuid="e3665990-c9bc-4d43-8a66-2c6670547914" name="Quantity Sets" status="sample" override="false">
<Template ref="6652398e-6579-4460-8cb4-26295acfacc7" />
<TemplateRules operator="and">
<TemplateRule Parameters="QsetName=Qto_ReinforcingElementBaseQuantities;" />
</TemplateRules>
</Concept>
</Concepts>
</ConceptRoot>
<xs:element name="IfcReinforcingElement" type="ifc:IfcReinforcingElement" abstract="true" substitutionGroup="ifc:IfcElementComponent" nillable="true"/>
<xs:complexType name="IfcReinforcingElement" abstract="true">
<xs:complexContent>
<xs:extension base="ifc:IfcElementComponent"/>
</xs:complexContent>
</xs:complexType>
ENTITY IfcReinforcingElement
ABSTRACT SUPERTYPE OF(ONEOF(IfcReinforcingBar, IfcReinforcingMesh, IfcTendon, IfcTendonAnchor))
SUBTYPE OF (IfcElementComponent);
SteelGrade : OPTIONAL IfcStrippedOptional;
END_ENTITY;
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