Location > Elevation

cgee

I’m new to Solibri and trying to understand the following in the Location information box:

Hierarchy

Federated Floor

What is this?

Elevation

Top Elevation
Bottom Elevation
Distance to Next Floor

What is the reference plane for the above Elevation properties?

Many thanks

jakub.rusin

Help article about Federated Floors:
https://www.solibri.com/learn/an-outstanding-new-feature-in-smc-9-7-federated-floors

Matti

@cgee said in Location > Elevation:

Elevation

Top Elevation
Bottom Elevation
Distance to Next Floor
What is the reference plane for the above Elevation properties?

Top and Bottom elevations are relative elevations to floor global elevation.
Floor elevation is an attribute of IfcBuildingStorey.

IfcBuildingStorey:
Elevation	 : 	Elevation of the base of this storey, relative to the 0,00 internal reference height of the building.
The 0.00 level is given by the absolute above sea level height by the ElevationOfRefHeight attribute given at IfcBuilding.

Distance to Next Floor

Distance to Next Floor =  global top elevation of floor - global top elevation of component

cgee

@Matti-Kannala

Thank you very much for providing some definitions.

I am still getting inconsistencies in the Elevation outputs in Solibri in the Location tab.

Are you able to help with the following?

I am simply reviewing a file with IfcSlab elements at 12ft. storey heights in order to understand the Solibri Elevation properties. There is a basement level slab and ground, first and second floor level slabs, then a roof slab. The lowest slab is defined as an IfcSlab_BASESLAB and the highest level slab is an IfcSlab_ROOF element. All the intermediate floors are IfcSlab_FLOOR elements. The slabs are all 12" thick. The origin is set to the underside of the ground floor slab although I have also experimented with it at the top of the ground floor slab but this seems to generate greater inconsistencies.

On upper floors, Solibri seems to take the IfcBuildingStorey Elevation as being to the underside of the IfcSlab; for a basement floor (IfcSlab_BASESLAB) and ground floor (IfcSlab_FLOOR), Solibri is reading the IfcBuilding Storey Elevation as the top of slab. Is this correct? Should there be this difference?
The top level IfcBuildingStorey seems to run from the underside of the IfcSlab_FLOOR to the top side of the IfcSlab_ROOF. Is that correct?
Is there a preferred elevation for the model origin to be set so that Solibri returns accurate IfcBuildingStorey elevation data?

Lastly, is there any Solibri documentation that explains how all these elevation properties fit together?