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.
GIRDER_SEGMENT	A segment of a girder (e.g. each span of a continuous girder).
DIAPHRAGM	End portion of a girder transmitting loads to supports and providing moment resistance to adjoining segment.
PIERCAP	A transversal beam on top of a pier (on a single column or extending from one column of a pier to another column of the same pier).
HATSTONE	A beam on top of a retaining wall or a wing wall, preventing earth movement.
CORNICE	A non-loadbearing beam on the longitudinal edge of bridge slab, usually encasing installations.
EDGEBEAM	A beam on the longitudinal edge of bridge slab, usually concrete, providing additional stiffening and protection from the elements.
USERDEFINED	User-defined linear beam element.
NOTDEFINED	Undefined linear beam element.

Formal representations

XML 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="girder_segment"/>

   <xs:enumeration value="diaphragm"/>

   <xs:enumeration value="piercap"/>

   <xs:enumeration value="hatstone"/>

   <xs:enumeration value="cornice"/>

   <xs:enumeration value="edgebeam"/>

   <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, 
 GIRDER_SEGMENT, 
 DIAPHRAGM, 
 PIERCAP, 
 HATSTONE, 
 CORNICE, 
 EDGEBEAM, 
 USERDEFINED, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram

Item	SPF	XML	Change	Description
IFC2x3 to IFC4 4.0.0.0
IfcBeamTypeEnum
HOLLOWCORE			ADDED
SPANDREL			ADDED
IFC4x2 Candidate 4.2.0.0
IfcBeamTypeEnum
GIRDER_SEGMENT			ADDED
DIAPHRAGM			ADDED
PIERCAP			ADDED
HATSTONE			ADDED
CORNICE			ADDED
EDGEBEAM			ADDED

	Beam Type Enum
	Énumération des types de poutres