If they want to cantilever over and around the Granville Bridge ramp envelope,
they can try shear walls and rotating the floorplates like the Marilyn Towers in Mississauga
or I think even Trump/Paradox Vancouver uses shear walls for support as it rotates.
The shear walls just extend out as far as necessary to support that floor.
The drawback though is there's less flexibility in suite design because of the long concrete walls
at regular intervals.
Quote:
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The torsional form of the towers is underpinned with a surprisingly simply and inexpensive structural solution. The two residential towers are supported by a grid of concrete load bearing walls. The bearing walls extend and contract in response to the sectional fluctuation created by the rotation of the floors while the balconies consist of cantilevered concrete slabs. In order to ensure the elegant edge profiles are as thin as possible, there is a thermal break in the slabs at the exterior glazing such that the insulation need not wrap the entirety of the balconies. Meanwhile, the dynamically fluid shaping of the towers, naturally aerodynamic, adeptly handles wind loading and ensures comfort throughout all the balconies. Besides providing every resident with a nice exterior place to enjoy views of Mississauga, the balconies naturally shade the interior from the summer sun while soaking in the winter sun, reducing air conditioning costs.
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https://www.archdaily.com/306566/absolute-towers-mad-architects
https://www.archdaily.com/306566/absolute-towers-mad-architects
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