IFC 4.3.x development

6.1.2.14 IfcMemberTypeEnum

6.1.2.14.1 Semantic definitions at the entity

This enumeration defines the different types of linear elements an IfcMember or IfcMemberType object can fulfill.

HISTORY  New enumeration type in IFC2x2.

IFC2x2 CHANGE  The additional identifiers CHORD, PLATE, STUD are added.

IFC2x3 CHANGE  The additional identifier MULLION are added.

Items

BRACE

A linear element (usually sloped) often used for bracing of a girder or truss.

CHORD

Upper or lower longitudinal member of a truss, used horizontally or sloped.

COLLAR

A linear element (usually used horizontally) within a roof structure to connect rafters and posts.

MEMBER

A linear element within a girder or truss with no further meaning.

MULLION

A linear element within a curtain wall system to connect two (or more) panels.

PLATE

A linear continuous horizontal element in wall framing, such as a head piece or a sole plate.

POST
PURLIN

A linear element (usually used horizontally) within a roof structure to support rafters.

RAFTER
STRINGER

A linear element used to support stair or ramp flights, usually used with slope.

STRUT
STUD

Vertical element in wall framing.

STIFFENING_RIB

A linear element added to a flange or a web plate of a girder for local stiffening.

ARCH_SEGMENT

Individual segment of an arch structure.

SUSPENSION_CABLE

A suspended element, typically comprising steel wire, sheath, etc.

SUSPENDER

A vertical element suspending a structure (such as bridge deck) from a suspension cable or an arch.

STAY_CABLE

A sloped element suspending a structure (such as bridge deck) from a pylon.

STRUCTURALCABLE

A linear cable element used to secure or stabilise a structure by resisting lateral and longitudinal loading through tension only, but cannot resist compression. usually formed of a flexible cable or wire.

TIEBAR

A linear bar element used to secure or stabilise a structure by resisting lateral and longitudinal loading through tension and or compression. usually formed by a solid bar.

USERDEFINED

User-defined linear element.

NOTDEFINED

Undefined linear element.

6.1.2.14.1 Formal representations

TYPE IfcMemberTypeEnum = ENUMERATION OF
	(BRACE
	,CHORD
	,COLLAR
	,MEMBER
	,MULLION
	,PLATE
	,POST
	,PURLIN
	,RAFTER
	,STRINGER
	,STRUT
	,STUD
	,STIFFENING_RIB
	,ARCH_SEGMENT
	,SUSPENSION_CABLE
	,SUSPENDER
	,STAY_CABLE
	,STRUCTURALCABLE
	,TIEBAR
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;