Urban Toronto | December 10, 2020
It’s been a busy few months at the southwest corner of Yonge and Bloor in the heart of Toronto where Mizrahi Developments‘ flagship project ‘The One‘ has started its 308.6-metre ascent to the top of the Canada’s tallest building ranking. We last checked in on the 85-storey project designed by UK-based starchitects Foster + Partners with Toronto’s Core Architects in mid-October, when the final structural steel elements had been erected for the ground floor and its lofty retail space. Much has changed in the several weeks since, with several aspects of the project revealing details of the building’s hybrid exoskeleton structural system in the process.
In contrast to a standard structural steel system, the hybrid system employed at The One uses steel elements encased in concrete for extra durability. The first supports to be encased were the eight 40-tonne steel ‘supercolumns’ around its perimeter, accomplished using large hollow forms placed around the steel columns, and then filled in with concrete. To facilitate the forming of the upcoming second floor, a two-level scaffold and shoring post setup now provides access to the upper reaches of what will be the lofty first floor ceiling.View Full Story
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