IfcBeamTypeEnum

Semantic definitions at the type

Type definition

This enumeration defines the different predefined types of beams that can further specify an IfcBeam or IfcBeamType.

HISTORY New enumeration type in IFC2x2.

IFC4 CHANGE The enumerators HOLLOWCORE and SPANDREL have been added.

Enumeration definition

Constant	Description
BEAM	A standard beam usually used horizontally.
JOIST	A beam used to support a floor or ceiling.
HOLLOWCORE	A wide often prestressed beam with a hollow-core profile that usually serves as a slab component.
LINTEL	A beam or horizontal piece of material over an opening (e.g. door, window).
SPANDREL	A tall beam placed on the facade of a building. One tall side is usually finished to provide the exterior of the building. Can be used to support joists or slab elements on its interior side.
T_BEAM	A beam that forms part of a slab construction and acts together with the slab which its carries. Such beams are often of T-shape (therefore the English name), but may have other shapes as well, e.g. an L-Shape or an Inverted-T-Shape.
USERDEFINED	User-defined linear beam element.
NOTDEFINED	Undefined linear beam element.

Formal representations

XSD Specification

 <xs:simpleType name="IfcBeamTypeEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="beam"/>

   <xs:enumeration value="joist"/>

   <xs:enumeration value="hollowcore"/>

   <xs:enumeration value="lintel"/>

   <xs:enumeration value="spandrel"/>

   <xs:enumeration value="t_beam"/>

   <xs:enumeration value="userdefined"/>

   <xs:enumeration value="notdefined"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcBeamTypeEnum = ENUMERATION OF (

 BEAM, 
 JOIST, 
 HOLLOWCORE, 
 LINTEL, 
 SPANDREL, 
 T_BEAM, 
 USERDEFINED, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcBeamTypeEnum
HOLLOWCORE			ADDED
SPANDREL			ADDED

	Beam Type Enum
	Énumération des types de poutres