Simple door

Definition

The concept of 'Simple door' is used to define a very simple door. Most of the actual properties of the door are not defined in the IFC model - the important identifier is the type of the door that is defined by each building project. Looking at the door type different applications know what data to attach to the door instances in their own applications.

The origin of the local placement of the door defines the placement of the door hinge. The door swing direction is defined by a attached PropertySet (see the concept of Common door properties).

The IFC model has provisions to model doors in great detail using IfcDoorPanel and IfcDoorLining. There has not been any real need to use this much detail in the implementations so far but this possibility exists if it is needed. There is a separate paper about modeling simple doors and windows that describes these things in more detail and explains why they are currently done this way.

Geometry

Geometry type	Extrusion	Profile	Segments	Clipped	Slanted
Brep

• The bounding box geometry of the door is defined by the opening element that contains the door, the door instance itself has no bounding box geometry.
• The exact door geometry may be optionally included using Brep geometry.
• In addition to the geometry the following parameters for a door can be specified. These parameters can be used to recreate some of the door geometry in the receiving system.
  • Type of the door
  • Hinge location
  • Swing direction (for swinging doors)
  • Lining depth
  • Lining thickness

View considerations

• Arch. design >> Quantities take off / cost estimating
  • Door type
  • Door dimensions (from opening element)
  • What type of wall is this door inserted to?
  • In which space(s) does this door belong?
• Arch. design >> Thermal load calculations / HVAC system design
  • Door type
  • Door dimensions (from opening element)
  • Which spaces does this door connect? Into which space boundary does this door make a void?
  • Internal / external door

Documents

• IFCR2_IfcDoor_991026_jh.pdf
• IFCR2_SimpleDoorRepresentation_991220_jh.pdf
• IFCR2_SimpleDoorProperties_991213_jh.pdf
• IFCR2_DoorSwingDirections_991220_jh.pdf
• IFCR2_AssigningDoorsAndWindowsToSpaces_991217_jh.pdf
• IFCR2_Label_000331_jh.pdf

Used by views

• Arch. design >> Quantities take off
• Arch. design >> Thermal load calculations / HVAC system design
• CAD / visualization

Data structure

IfcDoor
GlobalId
OwnerHistory
Owner history [all]
Label
UserDefinedType
PartOfGroups
Grouping [1,2]
IsContainedBy
Containment [all]
RelatingObject
Building storey [all]
Containment : Referencing [1,2,3]
RelatingObject
Space [all]
IsDefinedBy
Dynamic property assignment [all]
RelatingPropertyDefinition
PropertySet system [all]
HasProperties
Common door properties [1,3,5]
Common door lining properties [1,5]
Common door panel (swinging) properties [1,5]
Hardware group [1]
Manufacture information [none]
LocalPlacement
Relative placement [all]
PlacementRelTo
Opening element [1,3,5]
Representations
Geometric representation [all]
Items
Brep geometry [3,5]
Classification
Classification assignment [none]
Classifications
Classification [none]
FillsVoids
Fills element [1,3,5]
RelatingOpeningElement
Opening element [1,3,5]

Uses concepts

Brep geometry [3,5]
Building storey [all]
Classification [none]
Classification assignment [none]
Common door lining properties [1,5]
Common door panel (swinging) properties [1,5]
Common door properties [1,3,5]
Containment [all]
Containment : Referencing [1,2,3]
Dynamic property assignment [all]
Fills element [1,3,5]
Geometric representation [all]
Grouping [1,2]
Hardware group [1]
Manufacture information [none]
Opening element [1,3,5]
Owner history [all]
PropertySet system [all]
Relative placement [all]
Space [all]

Used by concepts

Building storey
Opening element
Space

Copyright © 2000-2002 BLIS-Project [BLIS, Registered Organization]
Author: Jiri Hietanen (jiri@blis-project.org)
All rights reserved.