Duke Tower Kitchener | 39 fl | completed

[skyrise32]

In that location the only thing needing to be supported is the podium and not 39 floors.

Am I right if I say the podium would also be the parking garage? That's a lot of weight too...

To answer a few of the questions going around.
1. The thin concrete poured on the sand is just a skim coat in order to create a clean surface for footing layout, building forms and to not disturb the surface below footing.
2. The formed concrete squares are just typical column footings. Slightly larger since it is sitting on sand. As mentioned if this is only below the podium and not the tower that would explain why the raft slab was done in the core and here single footings are sufficient. If the soil conditions were different the entire underground would be be done this way. These can take the weight of a parking garage without any issue.
3. Footing and column layout is largely based on parking garage layout requirment and structural limits. They dont need to line up and spacing will vary.

Hope that helps.