This project is like some real live BIM projects ... The BIM model of the architect does not fit with the architecture drawings. Furthermore the z-coordinates are totally wrong. The lazy engineer did not control this and just used the architecture BIM modell. All other used the engineers model as base and thus all are wrong ... Lots of work afterwards noone would like to pay for.
Thus as in every BIM project the most important ist the definition of the origin.
Here we are. I redid all structural engineering model. I used the original drawings not the Architecture model. Hopefully this model fits with the drawings.