Since IFC 4 does not provide entities representing bridge elements, Converter for IFC exports AEC bridge elements to existing IFC 4 entities and stores a special label in the IFC ObjectType attribute to map the AEC bridge element.
Since IfcCivilElement is an IFC 4 entity, only exporting AEC
Bridge elements to IFC 4 is supported. When the export target is
IFC 2x3, IfcBuildingElementProxy entities are created from the
AEC bridge elements.
When an IFC 4 file containing IfcCivilElement
entities is imported, the ObjectType attribute is used to create the appropriate AEC bridge
element.
| AEC Element | IFC Entity | IFC ObjectType |
| AecOtherSpatialStructureElement
| IfcBuilding
| OTHERSPATIALSTRUCTUREELEMENT
|
| Bridge
| IfcBuilding
| BRIDGE
|
| BridgeAbutment
| IfcBuildingStorey
| BRIDGEABUTMENT
|
| BridgeAnchorBlock
| IfcBuildingStorey
| BRIDGEANCHORBLOCK
|
| BridgeArch
| IfcBuildingStorey
| BRIDGEARCH
|
| BridgeArchSegment
| IfcCivilElement | BRIDGEARCHSEGMENT
|
| BridgeDeck
| IfcBuildingStorey
| BRIDGEDECK
|
| BridgeDeckSegment
| IfcCivilElement | BRIDGEDECKSEGMENT
|
| BridgeHangerBelt
| IfcBuildingStorey
| BRIDGEHANGERBELT
|
| BridgeHangerCable
| IfcCivilElement | BRIDGEHANGERCABLE
|
|
BridgeOtherSpatialStructureElement
| IfcBuildingStorey
| BRIDGEOTHERSPATIALSTRUCTUREELEMENT
|
|
BridgeOtherStructuralElement
| IfcCivilElement | BRIDGEOTHERSTRUCTURALELEMENT
|
| BridgePier
| IfcBuildingStorey
| BRIDGEPIER
|
| BridgePierCap
| IfcCivilElement | BRIDGEPIERCAP
|
| BridgePierSegment
| IfcCivilElement | BRIDGEPIERSEGMENT
|
| BridgeSpan
| IfcCivilElement
| BRIDGESPAN
|
| BridgeStayBelt
| IfcBuildingStorey
| BRIDGESTAYBELT
|
| BridgeStayCable
| IfcCivilElement | BRIDGESTAYCABLE
|
| BridgeSuspensionCable
| IfcCivilElement | BRIDGESUSPENSIONCABLE
|
| BridgeSuspensionSystem
| IfcBuildingStorey
| BRIDGESUSPENSIONSYSTEM
|
| BridgeTower
| IfcBuildingStorey
| BRIDGETOWER
|
| BridgeTowerSegment
| IfcCivilElement
| BRIDGETOWERSEGMENT
|
| BridgeWay
| IfcCivilElement
| BRIDGEWAY
|