Toronto Pinnacle One Yonge | 344.58m | 105s | Pinnacle | Hariri Pontarini

UtakataNoAnnex · Jun 1, 2023

buildtoronto said:
SKULL_KRUSHER is right. Each post-tensioning bar is 3 inches in diameter. High strength grout will be pumped from the lower location until it starts weeping out through the top location several floors above. Then you know the bars are fully sealed with grout. The bumps that you see in the silver sheathing is where the coupler that joins two bars is located. Just a trivia: This is the 3rd high-rise structure (including CN Tower) in Canada to have post-tensioned walls.

I was hoping for a more musical explanation...but I'l go with this. Thanks for explaining that everyones! /bows

Riseth · Jun 2, 2023

June 1, 2023

marcus_a_j · Jun 4, 2023

June 4, 2023

officedweller · Jun 5, 2023

buildtoronto said:
SKULL_KRUSHER is right. Each post-tensioning bar is 3 inches in diameter. High strength grout will be pumped from the lower location until it starts weeping out through the top location several floors above. Then you know the bars are fully sealed with grout. The bumps that you see in the silver sheathing is where the coupler that joins two bars is located. Just a trivia: This is the 3rd high-rise structure (including CN Tower) in Canada to have post-tensioned walls.

Interesting that this tower has the post-tensioning.
Vancouver House had it because it was a severely lopsided design.
I guess that it's just the extreme height and issues with sway?

UtakataNoAnnex · Jun 5, 2023

officedweller said:
Interesting that this tower has the post-tensioning.
Vancouver House had it because it was a severely lopsided design.
I guess that it's just the extreme height and issues with sway?

To my understanding that when this building is built to its proposed Chi Town height, it will be the 2nd tallest human made structure in this country next to the CN Tower. But one that will contain 105 floors of residents and their furniture. And since they're not using any hybrid steel and concrete method as done with The One at it's base, they're going to have find extra strength needed from somewhere to sustain this all. And yes, they will likely be swaying.

wmedia · Jun 6, 2023

Just now. Things to note: Core jump, more post-tensioning bars, and stacks of some kind of cladding/material on the ground on the west side (hard to tell what it is).