IfcStructuralSurfaceMemberTypeEnum

BACnet MVD

#### IfcStructuralSurfaceMemberTypeEnum

Natural language names

| Structural Surface Member Type Enum

Change log

Item | SPF | XML | Change | Description
--- | --- | --- | --- | ---
IFC2x3 to IFC4
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

`

References: IfcStructuralSurfaceMember

Link to this page