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.
A member with capacity to carry out-of-plane loads, i.e. a plate.
A member with capacity to carry in-plane loads, for example a shear wall.
A specially defined member.
A member without further categorization.
TYPE IfcStructuralSurfaceMemberTypeEnum = ENUMERATION OF (BENDING_ELEMENT ,MEMBRANE_ELEMENT ,SHELL ,USERDEFINED ,NOTDEFINED); END_TYPE;