IfcStructuralSurfaceMemberTypeEnum

Natural language names
enStructural Surface Member Type Enum
Change log
ItemSPFXMLChangeDescription
IFC2x3 to IFC4
    IfcStructuralSurfaceMemberTypeEnumADDED
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
ConstantDescription
BENDING_ELEMENTA member with capacity to carry out-of-plane loads, i.e. a plate.
MEMBRANE_ELEMENTA member with capacity to carry in-plane loads, for example a shear wall.
SHELLA member with capacity to carry in-plane and out-of-plane loads, i.e. a combination of bending element and membrane element.
USERDEFINEDA specially defined member.
NOTDEFINEDA member without further categorization.
Formal representations
XSD 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;

Link to EXPRESS-G diagram EXPRESS-G diagram

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