Stairs

General

A stair is a construction element set at an incline that connects spaces located at different levels, for foot access only. A staircase can consist of one or more flights separated by horizontal landings. A distinction is made between a staircase resting on the ground and a self-bearing staircase:

• A ground-based staircase is placed on the ground via sub-layers (insulation, sealing, draining stones). It is not intended to transmit the loads of the building (with the exception of its own load and that of its use transmitted directly to the ground).
• A load-bearing staircase partitions the spaces of a building horizontally (like a slab). This element is composed of a load-bearing structural part which transfers the loads to vertical load-bearing elements (walls, columns), in certain cases via beams.

Autres fiches escalier: finition des toits/plafonds, finition des sols

IFC category and type

The components of an IfcStair are:

• Flight (of stairs) and stringer: IfcStairFlight (IFC2x3 and IFC4) – STRAIGHT – WINDER – SPIRAL – CURVED – FREEFORM – USERDEFINED – NOTDEFINED
• Landing: IfcSlab – LANDING (see Slab)
• Railing: IfcRailing (IFC2x3 and IFC4) – HANDRAIL – GARDRAIL – BALUSTRADE – USERDEFINED – NOTDEFINED (A separate data sheet will be published later)

GID level (Geometry – Information – Documentation)

Classification