Definition from IAI: A steel bar, usually with manufactured deformations in the surface, used in concrete and masonry construction to provide additional strength.
HISTORY New entity in IFC Release 2x2
Property Set Use Definition:
The property sets relating to the IfcReinforcingBar are defined by the IfcPropertySet and attached by the IfcRelDefinesByProperties relationship. It is accessible by the inverse IsDefinedBy relationship. The following property set definitions specific to the IfcReinforcingBar are part of this IFC release:
Geometry Use Definitions:
The geometric representation of IfcReinforcingBar is given by the IfcProductDefinitionShape, allowing multiple geometric representations. Included are:
The use of local placement is defined at the supertype IfcBuildingElementComponent.
Standard Geometric Representation using Swept Solid
The standard geometric representation of IfcReinforcingBar is defined using the swept solid representation. The RepresentationType attribute of IfcShapeRepresentation should have the value 'SweptSolid'. The solid is formed from a cross section approximated as a circular disk swept along any arbitrary curve. Given this, the following constraints apply to the standard representation:
Simplified Geometric Representation
Simplified geometric representations may be used based on local agreements.
|NominalDiameter||:||The nominal diameter defining the cross-section size of the reinforcing bar.|
|CrossSectionArea||:||The effective cross-section area of the reinforcing bar.|
|BarLength||:|| The total length of the reinforcing bar. The total length of bended bars are calculated according to
local standards with corrections for the bends.
|BarRole||:|| The role, purpose or usage of the bar, i.e. the kind of loads and stresses it is intended to carry.
|BarSurface||:|| Indicator for whether the bar surface is plain or textured.
|WR1||:||The attribute ObjectType shall be given, if the bar role type is set to USERDEFINED.|