IFC 4.3.0.1 (IFC4X3) development

6.1.2.13 IfcMemberTypeEnum

6.1.2.13.1 Semantic definition

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

6.1.2.13.2 Type values

Type Description
ARCH_SEGMENT

Individual segment of an arch structure.

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

A linear (usually vertical) member used to support something or to mark a point.

PURLIN

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

RAFTER

A linear elements used to support roof slabs or roof covering, usually used with slope.

STAY_CABLE

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

STIFFENING_RIB

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

STRINGER

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

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.

STRUT

A linear element often used within a girder or truss.

STUD

Vertical element in wall framing.

SUSPENDER

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

SUSPENSION_CABLE

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

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.

Table 6.1.2.13.A

6.1.2.13.3 Formal representation

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

6.1.2.13.4 References

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6.1.2.13.5 Changelog

  • item, ARCH_SEGMENT
  • item, STAY_CABLE
  • item, STIFFENING_RIB
  • item, SUSPENDER
  • item, SUSPENSION_CABLE
  • item, STRUCTURALCABLE
  • item, TIEBAR