Toronto One Bloor West | 308.6m | 85s | Tridel | Foster + Partners

Crane is growing this morning.
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Will this be the tallest crane ever erected in Toronto?

Given the 328m height of the building, the cab of this crane should be at least 330 to 340m tall and the arm should extent up another 30-40m above that!

Has Toronto ever had a crane this tall before?
Yup - the CN Tower crane ran all the way up to the skypod, likely about 460 metres up:

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Crane is growing this morning. View attachment 528962
Yup, I can see it poking from the condo cluster on Charles St. Less than 2 years ago, I could see the crane and even the top floors clearly, but 55C has since blocked The One from my view. It shouldn’t be too long before it’ll reappear to lord it over all the other buildings though

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Re: Shear Walls,

They're reducing the size of columns and walls as the tower goes up, because the amount of lateral force the building must resist at the top is much lower than at the bottom. However, it's not just to save money, the walls and columns have to slowly get smaller to avoid stiffness irregularities.

I suspect the reason for large partition walls is gradually transfer lateral load from the interior core to the exterior mega columns above the ground floor retail space. As the building gets taller, this mechanism tapers away. Basically a very distributed outrigger system, so that the retail can avoid columns.

Walls may periodically appear as they go up to accomplish a similar effect throughout the height of the building. Don't be surprised if you see more of them, they're not for vertical loads.
 
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They seem to be in no hurry to start the next floor after pouring the columns on Monday. Everybody off until the new year?
 
Re: Shear Walls,

They're reducing the size of columns and walls as the tower goes up, because the amount of lateral force the building must resist at the top is much lower than at the bottom. However, it's not just to save money, the walls and columns have to slowly get smaller to avoid stiffness irregularities.

I suspect the reason for large partition walls is gradually transfer lateral load from the interior core to the exterior mega columns above the ground floor retail space. As the building gets taller, this mechanism tapers away. Basically a very distributed outrigger system, so that the retail can avoid columns.

Walls may periodically appear as they go up to accomplish a similar effect throughout the height of the building. Don't be surprised if you see more of them, they're not for vertical loads.
Yes I understand that but what I don't get is the drawings showing them at random floors
 
so any over under where the bloor sidwalk will open up?

guessing once they pass the mech level with the rcs?
 
Photos taken today, Friday (Dec. 22). Since my post from last Friday, all the Rail Climbing Systems (RCSs) have been raised to the 16th floor, the floor beneath the 1st mechanical levels, where I hear they will pause before being raised, presumably, to level 19. The east RCS has been at level 16 a few weeks now, the north RCS was at level 15 last week, the west RCS at level 14. And the skin is basically all up, up to level 15. Not sure why, but all that yellow netting with the RCSs have been tilted up. On top, the crane has been raised a few segments while all the blue scaffolding is where it was last week. However, as seen from BloorMan's photos, the concrete has been poured for the corner floors for the base of the next hanging sections. Once the blue platforms go up one or two more levels, presumably the hanger attachment points will be exposed and the hangers will be attached. The concrete core looks like it has gone up one level, to 48/49?

Starting with my "time-lapse" Flickr album update, a view from the south with the cladding basically done up to level 15, the east and west RCS both at level 16, covering the mechanical levels on those sides. A shot of the newly raised crane, then views from the west by Holt Renfrew. That building right to the west of the tower now with most of its exterior installed over the insulation layer, and more of the skin visible above it now. Then, a shot from Cumberland east of Bay, the skin now becoming visible from that vantage point. Some shots from the Yonge and Bloor intersection, east of Yonge. Then 1 Bloor E and W together, and finally a long shot from Bloor and Bedford where the core is 1 level higher than last week, and the attachment points for the hangers are visible on the newly poured corners.


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