IfcStructuralSurfaceMemberTypeEnum

Item	SPF	XML	Change	Description
IFC2x3 to IFC4 4.0.0.0
IfcStructuralSurfaceMemberTypeEnum			ADDED

Semantic definitions at the type

Type definition

This enumeration distinguishes between different types of structural surface members, such as the typical mechanical function of walls, slabs and shells.

HISTORY New enumeration in IFC2x2.

IFC4 CHANGE Renamed from IfcStructuralSurfaceTypeEnum.

Enumeration definition

Constant	Description
BENDING_ELEMENT	A member with capacity to carry out-of-plane loads, i.e. a plate.
MEMBRANE_ELEMENT	A member with capacity to carry in-plane loads, for example a shear wall.
SHELL	A member with capacity to carry in-plane and out-of-plane loads, i.e. a combination of bending element and membrane element.
USERDEFINED	A specially defined member.
NOTDEFINED	A member without further categorization.

Formal representations

XML Specification

 <xs:simpleType name="IfcStructuralSurfaceMemberTypeEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="bending_element"/>

   <xs:enumeration value="membrane_element"/>

   <xs:enumeration value="shell"/>

   <xs:enumeration value="userdefined"/>

   <xs:enumeration value="notdefined"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcStructuralSurfaceMemberTypeEnum = ENUMERATION OF (

 BENDING_ELEMENT, 
 MEMBRANE_ELEMENT, 
 SHELL, 
 USERDEFINED, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram