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HARIRI PONTARINI ARCHITECTS — The SkyTower will utilize a custom designed tuned mass damper to slow down the acceleration of the sway at the top of the building. Construction has reached the 33rd floor.
, a building must be over 300 metres in height, and it must be built to be inhabited floor by floor, which excludes the CN Tower, which is a freestanding structure. SkyTower will include a 220-room hotel and over 950 residential suites ranging from 520 to 2,300 square feet. Amenities include a pool, yoga studio, fitness centre and entertainment space. The building’s podium will include retail, connections to the downtown underground pedestrian network and rooftop amenities.
“The height of the building has design impacts related to structure, wind, mechanical systems, elevators and stairs, and building cladding,” El-Gazzar said. “Structurally, the taller a building gets, the more slender it becomes, which requires the design to widen at the podium base, as well as the addition and lengthening of structural walls throughout.”“The height also leads to increased sways at the top of the building,” El-Gazzar said.
In order to prevent this from creating winds within the interior spaces, the design divides stairs into four quadrants, each with a wind break that features pressure sensors and relief corridors to balance wind pressures within the building.
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