HomeDiagramsDatabaseMapsForum About
     

Go Back   SkyscraperPage Forum > Global Projects & Construction > Supertall Construction


    Vista Tower in the SkyscraperPage Database

Building Data Page   • Comparison Diagram   • Chicago Skyscraper Diagram

Map Location
Chicago Projects & Construction Forum

Reply

 
Thread Tools Display Modes
     
     
  #6641  
Old Posted Nov 27, 2019, 2:19 AM
Barrelfish Barrelfish is offline
Registered User
 
Join Date: Jun 2018
Posts: 98
My understanding is that it goes something like this:
  • Originally, the narrow parts of each frustrum were going to be even narrower (going from 90ish feet at the widest point down to 70ish feet at the narrowest)
  • These got widened so there were fewer difference in floorplans on the wide vs. narrow floors (now more like 90ish vs. 80ish). This brought more usable square footage and also reduced costs (less need to jog plumbinb back and forth, etc.)
  • That extra width, combined with the buildings narrow profile + the fact that the middle frustrum isn't directly anchored to the ground (there's a roadway underneath), meant that sway was higher than they wanted during wind tunnel testing
  • Therefore, the blow through floor was added to reduce the sway. I think this was after construction was already started, so it was too late to change the design of the tower in a way that would eliminate the need for the blow through

I may be conflating things slightly (maybe the blowthru would have been required regardless of the change in floor plates), but that's the general gist.
Reply With Quote
     
     
  #6642  
Old Posted Nov 27, 2019, 3:57 PM
cozy cozy is offline
Registered User
 
Join Date: Sep 2018
Location: Chicago, IL
Posts: 336
Yup.

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.
p.15 https://studiogang.com/files/pdfs/39...ower-oneup.pdf
__________________
Make no little plans; they have no magic to stir men's blood and probably themselves will not be realized.
Reply With Quote
     
     
  #6643  
Old Posted Nov 27, 2019, 4:03 PM
cozy cozy is offline
Registered User
 
Join Date: Sep 2018
Location: Chicago, IL
Posts: 336
was cool reading through that pdf again.

i never noticed that the trapezoidal glass is actually going to be for the a restaurant. going to be a sick date night location.



plus a nice diagram to understand the frustum design:

__________________
Make no little plans; they have no magic to stir men's blood and probably themselves will not be realized.
Reply With Quote
     
     
  #6644  
Old Posted Nov 27, 2019, 5:03 PM
Jibba's Avatar
Jibba Jibba is offline
Registered User
 
Join Date: Mar 2008
Location: Chicago
Posts: 2,677
As much as the rationalization of the form of this tower might be wholly contrived, Gang designed a really unique and visually seductive building, all of which mostly survived various delays, contractor snafus, financing restructuring, etc. I'm really happy with the (mostly) finished product.
Reply With Quote
     
     
  #6645  
Old Posted Nov 27, 2019, 5:04 PM
chicagodeckerdude's Avatar
chicagodeckerdude chicagodeckerdude is offline
Registered User
 
Join Date: Dec 2018
Location: Portland
Posts: 33
Quote:
Originally Posted by PittsburghPA View Post
Seeing as these will be some of the most expensive condo's in Chicago it seems the developers are doing everything they can to maximize the comfort for the buyers (i.e. multiple slosh tanks and blow-through floor).

Personally, I like it. It is the first of its kind for Chicago and I think will look attractive once complete.

There is always the highly unlikely scenario the engineers realized something before it was too late and added it out of necessity like New York's Citicorp building. If this was the case I highly doubt it was as dramatic as the Citicorp situation but you never know.

http://www.engineersjournal.ie/2015/...ilure-averted/
Right now it stands out. I'm sure once complete I won't mind it that much. Just so prominent at moment. Love this building either way!
Reply With Quote
     
     
  #6646  
Old Posted Nov 27, 2019, 5:04 PM
chicagodeckerdude's Avatar
chicagodeckerdude chicagodeckerdude is offline
Registered User
 
Join Date: Dec 2018
Location: Portland
Posts: 33
Quote:
Originally Posted by Barrelfish View Post
My understanding is that it goes something like this:
  • Originally, the narrow parts of each frustrum were going to be even narrower (going from 90ish feet at the widest point down to 70ish feet at the narrowest)
  • These got widened so there were fewer difference in floorplans on the wide vs. narrow floors (now more like 90ish vs. 80ish). This brought more usable square footage and also reduced costs (less need to jog plumbinb back and forth, etc.)
  • That extra width, combined with the buildings narrow profile + the fact that the middle frustrum isn't directly anchored to the ground (there's a roadway underneath), meant that sway was higher than they wanted during wind tunnel testing
  • Therefore, the blow through floor was added to reduce the sway. I think this was after construction was already started, so it was too late to change the design of the tower in a way that would eliminate the need for the blow through

I may be conflating things slightly (maybe the blowthru would have been required regardless of the change in floor plates), but that's the general gist.
That explains a LOT! Thanks!
Reply With Quote
     
     
  #6647  
Old Posted Nov 28, 2019, 2:57 AM
SolarWind's Avatar
SolarWind SolarWind is offline
Chicago
 
Join Date: Jun 2006
Posts: 4,120
November 25, 2019









Reply With Quote
     
     
  #6648  
Old Posted Nov 28, 2019, 5:27 AM
Steely Dan's Avatar
Steely Dan Steely Dan is offline
devout Pizzatarian
 
Join Date: Jul 2001
Location: Lincoln Square, Chicago
Posts: 21,668
^ Hachi machi!!!

I still won't know quite what to make of the blow through floor until it's all done, but damn those pics really show how she's singing. It looks fake in a way (a good way, I think). Instead of making a rendering look like real life, SG flipped it and made real life look like a rendering.
__________________
This one has purple in it. Purple is a fruit.
Reply With Quote
     
     
  #6649  
Old Posted Nov 28, 2019, 4:19 PM
harryc's Avatar
harryc harryc is offline
Registered User
 
Join Date: Jun 2007
Location: Oak Park, Il
Posts: 12,489
__________________
Harry C --- Chicago rep for SkyRise Cities ---- My Flickr stream HRC_OakPark
The man who trades freedom for security does not deserve nor will he ever receive either. B Franklin.
Reply With Quote
     
     
  #6650  
Old Posted Nov 28, 2019, 5:23 PM
chris08876's Avatar
chris08876 chris08876 is offline
7-hydroxymitragynine
 
Join Date: Jul 2013
Location: New Jersey - Somerset County
Posts: 29,570
Via cam today.


Reply With Quote
     
     
  #6651  
Old Posted Dec 2, 2019, 3:17 AM
SpireGuy's Avatar
SpireGuy SpireGuy is offline
Making Chicago Memorable.
 
Join Date: Jul 2009
Location: Chicago, IL
Posts: 144
What's up with those mechanical floors when looking at Vista from the South? In between the 2nd and 3rd tier, is part black and part glass. Looks kinda sloppy. Almost like an after thought.
Reply With Quote
     
     
  #6652  
Old Posted Dec 2, 2019, 4:11 AM
Ricochet48 Ricochet48 is offline
Registered User
 
Join Date: Oct 2017
Posts: 95
Quote:
Originally Posted by SpireGuy View Post
What's up with those mechanical floors when looking at Vista from the South? In between the 2nd and 3rd tier, is part black and part glass. Looks kinda sloppy. Almost like an after thought.
Agreed. It looks horrible and unfortunately here to stay.

Selling those extra windowed units too a precedent over architectural symmetry.
Reply With Quote
     
     
  #6653  
Old Posted Dec 2, 2019, 5:58 AM
eXodius eXodius is offline
Registered User
 
Join Date: May 2010
Location: Plano, TX
Posts: 57
^ They should've done what they did with One Vanderbilt with how they used glass even for the mechanical floors. Looks a LOT better than the black bands on this building! Otherwise it'd be better than the renders!
Reply With Quote
     
     
  #6654  
Old Posted Dec 2, 2019, 11:44 AM
MorganChi's Avatar
MorganChi MorganChi is offline
Registered User
 
Join Date: Jun 2018
Location: Chicago
Posts: 133
Quote:
Originally Posted by Ricochet48 View Post
Agreed. It looks horrible and unfortunately here to stay.

Selling those extra windowed units too a precedent over architectural symmetry.


Whose your source? Cause I heard different from one of the construction workers.
Reply With Quote
     
     
  #6655  
Old Posted Dec 3, 2019, 2:32 AM
Bonsai Tree's Avatar
Bonsai Tree Bonsai Tree is offline
Small but Mighty
 
Join Date: Jun 2017
Location: Chicago, IL
Posts: 173
Webcam is finally fully back up! With new views from Aqua!

https://www.vistatowerchicago.com/webcam/
Reply With Quote
     
     
  #6656  
Old Posted Dec 4, 2019, 3:54 AM
chris08876's Avatar
chris08876 chris08876 is offline
7-hydroxymitragynine
 
Join Date: Jul 2013
Location: New Jersey - Somerset County
Posts: 29,570
Vista, and also I believe that Cirrus/Cascade is directly below.



DSC_1449 by BartShore, on Flickr

Last edited by Steely Dan; Dec 4, 2019 at 4:38 AM.
Reply With Quote
     
     
  #6657  
Old Posted Dec 4, 2019, 8:35 AM
Ogdenman36 Ogdenman36 is offline
Registered User
 
Join Date: Jul 2015
Posts: 14
What a pic!
Please correct me if I am wrong beause I am most likely wrong, but east of AON used to be a 9 hole golf course going to almost the river back in the late 90s/early 2000's correct? It is amazing how much infill!
Reply With Quote
     
     
  #6658  
Old Posted Dec 4, 2019, 11:49 AM
SolarWind's Avatar
SolarWind SolarWind is offline
Chicago
 
Join Date: Jun 2006
Posts: 4,120
Quote:
Originally Posted by Ogdenman36 View Post
What a pic!
Please correct me if I am wrong beause I am most likely wrong, but east of AON used to be a 9 hole golf course going to almost the river back in the late 90s/early 2000's correct? It is amazing how much infill!
Metro Golf at The Illinois Center



Source: The Postcard Factory Photo: L. Fisher
Reply With Quote
     
     
  #6659  
Old Posted Dec 4, 2019, 12:41 PM
The Pimp's Avatar
The Pimp The Pimp is offline
Registered User
 
Join Date: Jul 2007
Location: Chicago/Hamilton Lake Indiana
Posts: 342
Quote:
Originally Posted by SolarWind View Post
Metro Golf at The Illinois Center



Source: The Postcard Factory Photo: L. Fisher
I remember the executive course well. But, it never felt like it was going to be permanent thing.
Reply With Quote
     
     
  #6660  
Old Posted Dec 4, 2019, 1:55 PM
Skyguy_7's Avatar
Skyguy_7 Skyguy_7 is offline
Registered User
 
Join Date: Dec 2012
Location: Chicago
Posts: 2,306
Great aerial, Chris!

^That golf course is so awesome, not to mention it looks like a well-manicured track. I would've loved to have played it.

This boom is so damn incredible we are literally seeing Chicago being "completed" right before our very eyes. Bursting at the seams so much so that there's no room left to build. Case in point; the deluge of construction spilling over in the next-best place to the loop/downtown, an old, formerly undesirable, meat packing district.

We have two sites in particular that total six tower cranes. I remember in 2010 when there were only two sites with two cranes, IN THE ENTIRE CITY!
__________________
He Does Not Have To Go
Reply With Quote
     
     
This discussion thread continues

Use the page links to the lower-right to go to the next page for additional posts
 
 
Reply

Go Back   SkyscraperPage Forum > Global Projects & Construction > Supertall Construction
Forum Jump


Thread Tools
Display Modes

Forum Jump


All times are GMT. The time now is 10:45 AM.

     

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.