IFC 4.3.x development

5.4.2.7 IfcElementAssemblyTypeEnum

5.4.2.7.1 Semantic definitions at the entity

This enumeration defines the basic configuration types for element assemblies.

HISTORY  New enumeration in IFC2x2.

Items

ACCESSORY_ASSEMBLY

Assembled accessories or components.

ARCH
BEAM
BRACED_FRAME

A rigid frame with additional bracing members.

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.

REINFORCEMENT_UNIT

Assembled reinforcement elements.

RIGID_FRAME

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

SLAB
TRUSS

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

ABUTMENT

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

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.

CROSS_BRACING

A Structural linear member or assembly of memebrs 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.

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.

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.

GRID

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

SHELTER
SUPPORTINGASSEMBLY
SUSPENSIONASSEMBLY

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

TRACTION_SWITCHING_ASSEMBLY

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

TRACKPANEL

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

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.

DILATATIONPANEL
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.

ENTRANCEWORKS

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

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.

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.

USERDEFINED

User-defined element assembly.

NOTDEFINED

Undefined element assembly.

5.4.2.7.1 Formal representations

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