IFC 4.3.0.1 (IFC4X3) development

6.3.2.2 IfcDiscreteAccessoryTypeEnum

6.3.2.2.1 Semantic definition

This enumeration defines the different types of discrete accessories.

6.3.2.2.2 Type values

Type Description
ANCHORPLATE

An accessory consisting of a steel plate, shear stud connectors or welded-on rebar which is embedded into the surface of a concrete element so that other elements can be welded or bolted onto it later.

BIRDPROTECTION

A device that prevents a sitting down of birds at electrically critical points and thus birds are protected against electrical shocks and disturbances by short circuit are avoided.

BRACKET

An L-shaped or similarly shaped accessory attached in a corner between elements to hold them together or to carry a secondary element.

CABLEARRANGER

A cable arranger is a flexible accessory or a part of a component placed around cables to arrange and minimize flexing of them at the point where it is placed.

ELASTIC_CUSHION

A track elastic cushion is a kind of layer set on grooved sides of a concrete base, which is used for mitigating the impact of longitudinal and lateral load on track structures. A track elastic cushion shall only appear in ballastless track structures.

EXPANSION_JOINT_DEVICE

Assembly connection element between construction elements to allow for thermic differential expansions.

FILLER

Sealant, gap filler rod, packing material or other used to close a gap.

FLASHING

Construction material used to manage the passage of water around objects.

INSULATOR

A device designed to support and insulate a conductive element. Note: definition from IEC 151-15-39.

LOCK

A lock is a mechanical or electronic fastening device that is released either by a physical object (e.g., key, fingerprint, RFID card, security token etc.), by supplying secret information (e.g., number permutation, password), or by a combination thereof.

PANEL_STRENGTHENING

A component that minimizes pump effects of the substructure.

POINTMACHINEMOUNTINGDEVICE

Point machine mounting device.

POINT_MACHINE_LOCKING_DEVICE

Point machine locking device.

RAILBRACE

A rail component that prevents rails from tipping and twisting.

RAILPAD

A non-metallic pad placed between rail and baseplate or rail and sleeper, bearer or slab. Note: definition from EN 13481-1.

RAIL_LUBRICATION

A device that prevents wearing of the rails throughout the flange of wheel to reduce noise emissions. It is often located at inner side of the outer rail in a curve or near turnouts (depends on function wearing or noise reduction).

RAIL_MECHANICAL_EQUIPMENT

A rail mechanical equipment is a mechnical equipment installed at railside, like blocking device, speed regulator, bias loaded inspector, track scale or controllable retarder.

SHOE

A column shoe or a beam shoe (beam hanger) used to support or secure an element.

SLIDINGCHAIR

A component which supports and retains the stock rail and a flat surface upon which the foot of the switch rail slides.

SOUNDABSORPTION

A component in the track for sound absorption and may also absorb vibrations. It is often used in combination with slab tracks.

TENSIONINGEQUIPMENT

An equipment used to maintain the tension of conductors or cables.

USERDEFINED

User-defined accessory.

NOTDEFINED

Undefined accessory.

Table 6.3.2.2.A

6.3.2.2.3 Formal representation

TYPE IfcDiscreteAccessoryTypeEnum = ENUMERATION OF
	(ANCHORPLATE
	,BIRDPROTECTION
	,BRACKET
	,CABLEARRANGER
	,ELASTIC_CUSHION
	,EXPANSION_JOINT_DEVICE
	,FILLER
	,FLASHING
	,INSULATOR
	,LOCK
	,PANEL_STRENGTHENING
	,POINTMACHINEMOUNTINGDEVICE
	,POINT_MACHINE_LOCKING_DEVICE
	,RAILBRACE
	,RAILPAD
	,RAIL_LUBRICATION
	,RAIL_MECHANICAL_EQUIPMENT
	,SHOE
	,SLIDINGCHAIR
	,SOUNDABSORPTION
	,TENSIONINGEQUIPMENT
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;

6.3.2.2.4 References

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6.3.2.2.5 Changelog

  • item, EXPANSION_JOINT_DEVICE
  • item, BIRDPROTECTION
  • item, CABLEARRANGER
  • item, ELASTIC_CUSHION
  • item, FILLER
  • item, FLASHING
  • item, INSULATOR
  • item, LOCK
  • item, PANEL_STRENGTHENING
  • item, POINTMACHINEMOUNTINGDEVICE
  • item, POINT_MACHINE_LOCKING_DEVICE
  • item, RAILBRACE
  • item, RAILPAD
  • item, RAIL_LUBRICATION
  • item, RAIL_MECHANICAL_EQUIPMENT
  • item, SLIDINGCHAIR
  • item, SOUNDABSORPTION
  • item, TENSIONINGEQUIPMENT