7.8.4.137 Pset_TrackBase
7.8.4.137.1 Semantic definition
Properties in this property set are applicable for IfcSlab with PredefinedType BASESLAB, indicated that the base slab is a track base slab.
7.8.4.137.2 Applicable entities
- IfcSlab/BASESLAB
 - IfcSlabType/BASESLAB
 
7.8.4.137.3 Properties
| Name | Property Type | Data Type | Description | |
|---|---|---|---|---|
| IsSurfaceGalling | IfcPropertySingleValue | IfcBoolean | 
 Indicates whether the surface is galling or not.  | 
|
| SurfaceGallingArea | IfcPropertySingleValue | IfcAreaMeasure | 
 The galling area of the object surface.  |