(24) Railings (system Family)
A Stair element can consist of the following components: Runs, Landings, Supports (side and centre), and Railings.
To create a stair, the individual components are assembled and configured in Stair Assembly Edit Mode. The process typically involves defining the stair runs, connecting them with landings, adding supports where required, and configuring the railings. These operations can be carried out in either a plan view or a 3D view.
Although the individual components are distinct, they maintain a parametric relationship with one another within the overall stair assembly. Changes to one component can therefore trigger corresponding adjustments to others. For example, if the number of risers in one Run is reduced, Revit can redistribute the remaining risers across connected Runs to maintain the overall stair height.
Despite these interdependencies, the individual components remain accessible for separate editing, scheduling, and documentation, allowing each to be monitored and controlled independently where required.
<MAIN GROUPING>.<RAILINGS>
<parameter>.<type>.<formula>.<lock>.<project param/family param/shared param/global param>.<nested parameter fra nested family>
<GRAPHICS>
<”Railings - Bottom plate visible”>.<yes/no>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Railings - Frame visible”>.<yes/no>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Railings - Handle visible.”>.<yes/no>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<MATERIALS AND FINISHES>
<”Railings - Bottom plate material”>.<pull-down>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Railings - Frame material”>.<pull-down>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Railings - Glass material”>.<pull-down>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Railings - Handle material”>.<pull-down>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Railings - Joint material”>.<pull-down>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Railings - Plate material”>.<pull-down>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<ENERGY ANALYSIS>
<”Production / Extraction of raw materials”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Production / Transportation to production”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Production / Material production”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Construction / Transportion to site”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Construction / Installation”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Usage / Operation and maintenance”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Usage / Replacement”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Usage / Conversion”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Usage / Energy for Building maintenance”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Usage / Water usage”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”End-of-Life / Demolition”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”End-of-Life / Transportation for waste management”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”End-of-Life / Waste management”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”End-of-Life / Disposal”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Next product system / Reuse-/recycle-portential”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Environmental impact / Greenhouse effect”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Environemntal impact / Deplation of Ozone layer”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Environmental impact / Photochemical Ozone creation”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Environmental impact / Acidification”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Environmental impact / Nutrient load”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Resource consumption category / Total primary energy consumption”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Resource consumption category / Renewable primary energy consumption”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<DIMENSIONS>
<”Width”>.<float>.<Rough Width - ([Doors - Joint] * 2).<no>.<project param/family param/shared param/global param>.<no>
<”Height”>.<float>.<Rough Height - ([Doors - Join]).<no>.<project param/family param/shared param/global param>.<no>
<”Thickness”>.<float>.<0 mm>.<no>.<project param/family param/shared param/global param>.<no>
<”Rough width”>.<float>.<float>.<project param/family param/shared param/global param>.<no>
<”Rough Width”>.<float>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Railings - Frame / offset”>.<float>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Railings - Frame / profile / width”>.<float>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<ANALYTICAL PROPERTIES>
<”Analytic Construction”>.<>.<string>.<no>.<project param/family param/shared param/global param>.<no>
<”Heat Transfer Coeffecient (U)”>.<>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Solar Heat Gain Coeffecient”>.<>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Thermal Resistance (R)”>.<>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Visual Light Transmittance”>.<>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<IFC PARAMETERS>
<”Operation”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<FIRE PROTECTION>
<”Fire rating”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<ANALYSIS RESULTS>
<”Railings - Area (m2)”>.<float>.<(Rough Height * Rough Width)>.<no>.<project param/family param/shared param/global param>.<no>
<”Railings - Wall width (host) (report)”>.<float>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<DATA>
<”BIM7AATypeCode”>.<integer>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”BIM7AATypeComments”>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”BIM7AATypeDescription”>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”BIM7AATypeNumber”>.<integer>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”CCSClassification_Type”>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”CCSMainTypeID_Type”>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”CCSSubTypeID_Type”>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”CCSTypeID_Type”>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”CCSTypeName_Type”>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<OTHER>
<”Copyright”>.<string>.<=”2020, Claus Neergaard”>.<no>.<project param/family param/shared param/global param>.<no>
<”Link”>.<URL>.<=URL>.<no>.<project param/family param/shared param/global param>.<no>
<”Date created”>.<2020>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Signature”>.<CRN>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”DBK-code”>.<-205.03>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”SfB-code”>.<(32)>,<none>.<no>.<project param/family param/shared param/global param>.<no>
<IDENTITY DATA>
<”Assembly Code”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Cost”>.<>.<integer>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Description”>.<”Pladedør <udfyldes i projekt>.<”=BIM7AATypeDescription”>.<no>.<project param/family param/shared param/global param>.<no>
<”Fire Rating”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Keynote”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Manufacturer”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Model”>.<>.<string>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”Type Comments”>.<”Pladedør <udfyldes i projekt>”>.<=BIM7AATypeDescription>.<no>.<project param/family param/shared param/global param>.<no>
<”Type Image”>.<>.<none>.<no>.<project param/family param/shared param/global param>.<no>
<”URL”>.<”http://www.clausclaus.com”>.<=”http://www.clausclaus.com”>.<no>.<project param/family param/shared param/global param>.<no>
IfcRailingDefinition of buildingSMART
The railing is a frame assembly adjacent to human circulation spaces and at some space boundaries where it is used in lieu of walls or to complement walls. Designed to aid humans, either as an optional physical support, or to prevent injury by falling. A list of references to accessory/mounting hardware for this railing might be given by including these assessories (IfcDiscreteAssessory) through the objectified relationship IfcRelAggregates.
Property Set Use Definition
The property sets relating to the IfcRailing are defined by the IfcPropertySet and attached by the IfcRelDefinesByProperties relationship. It is accessible by the inverse IsDefinedBy relationship. The following property set definitions specific to the IfcRailing are part of this IFC release:
Pset_RailingCommon: common property set for all railing occurrences
Geometry Use Definitions
The geometric representation of IfcRailing is given by the IfcProductDefinitionShape, allowing multiple geometric representations. Included are:
Local placement
The local placement for IfcRailing is defined in its supertype IfcProduct. It is defined by the IfcLocalPlacement, which defines the local coordinate system that is referenced by all geometric representations.
- The PlacementRelTo relationship of IfcLocalPlacement shall point (if given) to the same IfcSpatialStructureElement that is used in the ContainedInStructure inverse attribute or to a referenced spatial structure element at a higher level
- If the IfcRailing, however, is used by an IfcStair or IfcRamp, and this container class defines its own local placement, then the PlacementRelTo relationship of IfcLocalPlacement shall point (if given) to the local placement of the aggregate.
- If the relative placement is not used, the absolute placement is defined within the world coordinate system.
Geometric Representation
Currently the use of 'BoundingBox', 'SurfaceModel', 'Brep' and 'MappedRepresentation' representations of IfcRailing are supported. The conventions to use these representations are given at the level of the supertype, IfcBuildingElement.
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Revit Families: Walls (system Family)
Revit Families: Curtain Walls (system Family)
Revit Families: Floors (system Family)
Revit Families: Stairs (system Family)
Revit Families: Doors (loadable Family)
Revit Families: Windows (loadable Family)
Revit Families: Curtain Wall Panels (loadable Family)
Revit Families: Furniture (loadable Family)
Revit Families: Detail Components (loadable Family)