IFC 4.3.0.1 (IFC4X3) development

5.4.2.7 IfcElementAssemblyTypeEnum

5.4.2.7.1 Semantic definition

This enumeration defines the basic configuration types for element assemblies.

5.4.2.7.2 Type values

Type Description
ABUTMENT

A bridge abutment built up of walls, beams, slabs etc.

ACCESSORY_ASSEMBLY

Assembled accessories or components.

ARCH

A curved structure.

BEAM_GRID

Interconnected beams, located in one (typically horizontal) plane.

BRACED_FRAME

A rigid frame with additional bracing members.

CROSS_BRACING

A Structural linear member or assembly of members inside a box girder or between girders, typically on a pier, to resist lateral forces and transfer them to the support.

DECK

A platform (such as floor or bridge deck) built up of beams, slabs.

DILATATIONPANEL

Device which permits longitudinal relative rail movement of two adjacent rails, while maintaining correct guidance and support. Note: definition from NF EN 13232-1-2004.

ENTRANCEWORKS

An assembly forming the support structure of a chamber (lock, dock) gate and associated elements, plus the containment of operational equipment.

GIRDER

A beam-like superstructure, such as bridge main girder extending between abutments and piers built up of beams, braces (as Members) etc. - may also be an aggregation of girder segments.

GRID

A framework of spaced cables or bars that are parallel to or cross each other.

MAST

An assembly of plates, members, cables or fasteners that form a vertical structure for the support or mounting of other equipment such as lights, sonar or wireless transmitters.

PIER

An intermediate support e.g. in a bridge, built up of walls, columns, beams etc.

PYLON

A vertical structure supporting cables in suspended or stayed structure.

RAIL_MECHANICAL_EQUIPMENT_ASSEMBLY

A complex assembly made up of several components like blocking device, speed regulator, bias loaded inspector, track scale or controllable retarder.

REINFORCEMENT_UNIT

Assembled reinforcement elements.

RIGID_FRAME

A structure built up of beams, columns, etc. with moment-resisting joints, such as gantry

SHELTER

A structure, fairly quick to setup, move or dismantle, used to give protection, especially from the weather or intrusion.

SIGNALASSEMBLY

An assembly to physically aggregate together one or more signal instances (and also sign instances) including any supporting structural elements such as a simple pole or a rigid frame gantry.

SLAB_FIELD

Slabs, laid out in one plane.

SUMPBUSTER

An obstacle (with oil catchment basin) installed typically in a bus lane to prevent other traffic with lower ground clearance from using it. Also Sump breaker or Sump trap.

SUPPORTINGASSEMBLY

An assembly intends to support Overhead Contact Line System. It includes foundation, supporting elements and suspension assembly.

SUSPENSIONASSEMBLY

A complex assembly of components used to suspend elements or cable segments.

TRACKPANEL

Trackwork ensuring the support and guidance of a vehicle along a route. It consists of assembly of rail, sleepers and fastenings.

TRACTION_SWITCHING_ASSEMBLY

A common assembly used to insure the switching function. It is composed of switches, control instruments and other components.

TRAFFIC_CALMING_DEVICE

A structure on the carriageway to control the speed of vehicles.

NOTE Definition from ISO 6707-1: Encouragement of restrained and considerate behaviour by means such as road humps and reductions in width of the travelled way (US:traffic restraint, UK:speed bump). NOTE Definition from PIARC: Local carriageway layout (staggered section, choker) or physical device (central island, round- or flat-top road hump, speed bump, rumble strips, etc.) to control the speed of road vehicles.

TRUSS

A structure built up of members with (quasi) pinned joint.

TURNOUTPANEL

Trackwork ensuring the support and guidance of a vehicle along any given route among various diverging or intersecting tracks. Note: definition from NF EN 13232-1-2004.

USERDEFINED

User-defined element assembly.

NOTDEFINED

Undefined element assembly.

Table 5.4.2.7.A

5.4.2.7.3 Formal representation

TYPE IfcElementAssemblyTypeEnum = ENUMERATION OF
	(ABUTMENT
	,ACCESSORY_ASSEMBLY
	,ARCH
	,BEAM_GRID
	,BRACED_FRAME
	,CROSS_BRACING
	,DECK
	,DILATATIONPANEL
	,ENTRANCEWORKS
	,GIRDER
	,GRID
	,MAST
	,PIER
	,PYLON
	,RAIL_MECHANICAL_EQUIPMENT_ASSEMBLY
	,REINFORCEMENT_UNIT
	,RIGID_FRAME
	,SHELTER
	,SIGNALASSEMBLY
	,SLAB_FIELD
	,SUMPBUSTER
	,SUPPORTINGASSEMBLY
	,SUSPENSIONASSEMBLY
	,TRACKPANEL
	,TRACTION_SWITCHING_ASSEMBLY
	,TRAFFIC_CALMING_DEVICE
	,TRUSS
	,TURNOUTPANEL
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;

5.4.2.7.4 References

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5.4.2.7.5 Changelog

  • item, ABUTMENT
  • item, CROSS_BRACING
  • item, DECK
  • item, PIER
  • item, PYLON
  • item, DILATATIONPANEL
  • item, ENTRANCEWORKS
  • item, GRID
  • item, MAST
  • item, RAIL_MECHANICAL_EQUIPMENT_ASSEMBLY
  • item, SHELTER
  • item, SIGNALASSEMBLY
  • item, SUMPBUSTER
  • item, SUPPORTINGASSEMBLY
  • item, SUSPENSIONASSEMBLY
  • item, TRACKPANEL
  • item, TRACTION_SWITCHING_ASSEMBLY
  • item, TRAFFIC_CALMING_DEVICE
  • item, TURNOUTPANEL