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  #6581  
Old Posted Nov 11, 2019, 5:10 AM
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Quote:
Originally Posted by Donnie77 View Post
just finished watching and thnx for the link!

AWESOME.....
Yeah I enjoyed watching this too. I did not appreciate some of the technical challenges posed by the site.
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  #6582  
Old Posted Nov 11, 2019, 6:32 AM
lakeshoredrive lakeshoredrive is online now
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Originally Posted by cozy View Post
OMG it is!!! I'm so gosh darn happy right now!! The entire time this tower was going up I was super into these films, and most are a decade plus old on buildings like trump.

I kept thinking, please.. please let there be some sort of film crew documenting the rise of this historic super tall. Cannot wait to see the unique views they got for us! And more hopefully some insight into this complex project. Gahh... im so happy.

https://www.sciencechannel.com/tv-sh...craper-chicago

Also.. horray! First couple panels are up on the lobby, thanks victor. Looks shiny
I wish they could’ve talked about the blow through floor. I’m also surprised Jeanne Gang isn’t in this episode.
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  #6583  
Old Posted Nov 11, 2019, 12:28 PM
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Originally Posted by cozy View Post
OMG it is!!! I'm so gosh darn happy right now!! The entire time this tower was going up I was super into these films, and most are a decade plus old on buildings like trump.

I kept thinking, please.. please let there be some sort of film crew documenting the rise of this historic super tall. Cannot wait to see the unique views they got for us! And more hopefully some insight into this complex project. Gahh... im so happy.

https://www.sciencechannel.com/tv-sh...craper-chicago

Also.. horray! First couple panels are up on the lobby, thanks victor. Looks shiny
Watched the first 10 mins cant wait to get home to watch the whole thing.
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  #6584  
Old Posted Nov 11, 2019, 4:24 PM
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CTBUH Journal — “Case Study: Vista Tower, Chicago”

Right after that awesome doc, we get an official CTBUH write-up. Loving all the attention Vista is getting!! This document gets into the good stuff where the Building Giants video lacks.

Quote:
"Vista Tower, the subject of our case study, is situated prominently at the intersection of the historic axes of the Chicago River and Lake Shore Drive. It is one thing to choose a significant location for the city's future third-tallest building; it is quite another to turn that location into a gateway that unites parkland with riverfront recreation, crossing beneath a three-level roadway that had blocked access for decades. On the one hand, the building is very much in the Chicago tradition of structural bravado; on the other, it uses that bravado to hearken a future where skyscrapers are unitary forces and no longer urban barriers."

— Daniel Safarik, Editor, CTBUH Journal
https://studiogang.com/files/pdfs/39...ower-oneup.pdf
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  #6585  
Old Posted Nov 11, 2019, 4:36 PM
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Watched about half the episode so far. Pretty incredible stuff, no doubt about it!

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  #6586  
Old Posted Nov 11, 2019, 7:16 PM
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That was awesome!
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  #6587  
Old Posted Nov 11, 2019, 9:10 PM
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  #6588  
Old Posted Nov 12, 2019, 2:14 AM
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Today - it looks much more geometrical (for lack of a better word) from some angles -

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  #6589  
Old Posted Nov 12, 2019, 3:56 PM
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Quote:
Originally Posted by lakeshoredrive View Post
I wish they could’ve talked about the blow through floor. I’m also surprised Jeanne Gang isn’t in this episode.
The lack of specific mention of any of the firms working on the design was a little strange. Same with the 'anonymous' developers. Magellan wasn't mentioned either. I wonder if Studio Gang declined to participate for some reason. No discussion for bKL either? Seems like too big and basic of a detail to simply forget.
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  #6590  
Old Posted Nov 13, 2019, 5:53 PM
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^They did talk with bKL albeit briefly and had a VP of Sales from Magellan on. . . the biggest omission was the blow through hole. . . although they talked about the sloshing dampers, I thought they'd at least mention the blow through hole, unless I missed it. . .

I liked the focus on the trades. . . that was more interesting to me than any design discussion. . .

. . .
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  #6591  
Old Posted Nov 13, 2019, 6:22 PM
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Originally Posted by kolchak View Post
Today - it looks much more geometrical (for lack of a better word) from some angles -
I think we'd all agree she looks best (dark silhouette) juxtaposed with a cloudy day (white background). That mix really brings out the colors of the glass.
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  #6592  
Old Posted Nov 14, 2019, 3:36 AM
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  #6593  
Old Posted Nov 14, 2019, 8:27 AM
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Most interesting part of the case study is this bit on the blow-through. Apparently it was VE'd in.

Quote:
The initial concept called for the frustums to
taper from a 90-foot (27.4-meter)-square floor
plate at the widest point to a 70-foot-
(21.3-meter)-square floor plate at the
narrowest; this narrowest floor plate was later
revised to an 81-foot (24.7 meter)-square,
responding to economic demands for more
floor area and less variation in apartment size.
This change, however, had the impact of
increasing wind pressure on the building. In
response, a double-height “blow-through”
floor was introduced at level 83, which allows
wind to pass through the structure at a high
point (see Figure 5). Tuned sloshing dampers
at levels 83, 93, and 94 provide additional
wind-motion accommodation.
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  #6594  
Old Posted Nov 14, 2019, 1:58 PM
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^Makes me wonder what has the greater value: Larger floor plates throughout (5 extra feet around at the narrowest points) or the two additional floors where the blowthrough floor is now.

The hotel-level facade is very unique. I love it. Where else in Chicago can you find a highrise with trapezoidal glass, as opposed to rectangular? Perhaps this will be the next trend. One can only hope.
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  #6595  
Old Posted Nov 14, 2019, 2:33 PM
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Quote:
Originally Posted by Skyguy_7 View Post
^Makes me wonder what has the greater value: Larger floor plates throughout (5 extra feet around at the narrowest points) or the two additional floors where the blowthrough floor is now.

The hotel-level facade is very unique. I love it. Where else in Chicago can you find a highrise with trapezoidal glass, as opposed to rectangular? Perhaps this will be the next trend. One can only hope.
My guess is that it came down less to the pure value of the square footage but reality setting in when it was realized that the 70' floor plates in frustums with a core were nearly unusable. In the current configuration that would have only left 9' outside the core for the living areas and 21' depth for bedrooms and bathrooms on the north and south sides. The smaller floors may have required a completely different and more awkward arrangement of units.
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  #6596  
Old Posted Nov 14, 2019, 2:57 PM
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This^ Ned, you are spot-on. The frustums, having been generated solely based on aesthetic desires rather than being a natural response to the program or necessarily the structural needs of a supertall, wreaked havoc on the floor plans as we have previously discussed in this thread...

Even with the current dimensions, the condos had to be planned taking out a whopping 4 1/2' along the entire perimeter from the largest to smallest floor plans... they arguably don't work now, I can't imagine how they worked taking out 10' along the entire perimeter instead of 'just' 4 1/2'... they probably had to change the condo floor plans and room counts forcing shifting back and forth the locations of plumbing risers which just added to costs...
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  #6597  
Old Posted Nov 14, 2019, 4:50 PM
BuildThemTaller BuildThemTaller is online now
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Quote:
Originally Posted by gandalf612 View Post
Most interesting part of the case study is this bit on the blow-through. Apparently it was VE'd in.

Quote:
The initial concept called for the frustums to
taper from a 90-foot (27.4-meter)-square floor
plate at the widest point to a 70-foot-
(21.3-meter)-square floor plate at the
narrowest; this narrowest floor plate was later
revised to an 81-foot (24.7 meter)-square,
responding to economic demands for more
floor area and less variation in apartment size.
This change, however, had the impact of
increasing wind pressure on the building. In
response, a double-height “blow-through”
floor was introduced at level 83, which allows
wind to pass through the structure at a high
point (see Figure 5). Tuned sloshing dampers
at levels 83, 93, and 94 provide additional
wind-motion accommodation.
Anyone got the render skills to do a side-by-side?
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  #6598  
Old Posted Nov 14, 2019, 7:57 PM
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Quote:
Originally Posted by BuildThemTaller View Post
Anyone got the render skills to do a side-by-side?
From a purely aesthetic standpoint - and a snap judgement - I think the more subtle frustum variation might actually look better (blow-through notwithstanding). A 20 foot difference (as opposed to 9) might give the building an accordion-like appearance. Whereas the more subtle frustum variation enhances the buildings vertical height, allowing it to 'soar' more than it otherwise would have.

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  #6599  
Old Posted Nov 14, 2019, 9:39 PM
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Funny this building is now everywhere since it is basically completed on the internet and the comments from the average person on the street who is not a skyscraper fanatic is the same on here. The blow through floor just looks terrible.

Now, if the pic above, it they paint it white and looks like rendering, that would be a huge improvment, but what I see now and everyone else, not a good look.
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  #6600  
Old Posted Nov 15, 2019, 2:18 AM
rivernorthlurker rivernorthlurker is offline
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Quote:
Originally Posted by BuildThemTaller View Post
Anyone got the render skills to do a side-by-side?
I'm curious how it compares to other blow through floors in notable buildings in or outside Chicago. Anyone have any good examples other than 432 West?
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