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-   -   CHICAGO | Vista Tower | 1,191 FT | 101 FLOORS (http://forum.skyscraperpage.com/showthread.php?t=212182)

harryc Feb 22, 2017 12:07 AM

Feb 20
Heading North on LSD the little crane dead center on the road - the site is where LSD turned before the last straitening.


Feb 21



Solid concrete - ready for a load


Teamwork


Safety first


the new E Upper Wacker

City Wide Feb 22, 2017 5:13 AM

The progress, almost daily, on this is impressive. Scary.

SolarWind Feb 23, 2017 3:20 AM

February 22, 2017














SteelMonkey Feb 23, 2017 3:32 AM

Solid pics Solar. Much appreciated

The Lurker Feb 23, 2017 5:30 AM

Wow. They really are on an aggressive schedule here.

jon2379 Feb 23, 2017 5:34 AM

don't know much about construction but I'd guess the nice weather has probably helped speed things up

KWILLSKYLINE Feb 23, 2017 10:27 AM

Looks like the last mega poor is right around the corner. They might wait till next week to warm up with potential snow/flurries this weekend.

UPChicago Feb 23, 2017 3:59 PM

Quote:

Originally Posted by KWILLSKYLINE (Post 7721041)
Looks like the last mega poor is right around the corner.

Awesome peace and prosperity for all! :haha:

Northwest Feb 24, 2017 4:53 PM

A large concrete pour appears to be happening now, although its not the secondary mat. Looks to be very large area just to the east of it.
http://www.vistatowerchicago.com/webcam/
Also, are those concrete pumps arranged in a daisy-chain fashion to send it a very long distance? Looks like the reach of a single machine is insufficient, and some sort of temporary pumping tower is in place where a vehicle can not reach.

SolarWind Feb 25, 2017 6:39 PM

February 24, 2017




















the urban politician Feb 25, 2017 7:29 PM

Pardon the dumb question, but how to you create a smooth concrete surface if you are walking around in it while you are spreading it?

SolarWind Feb 25, 2017 9:44 PM

February 24, 2017



Quote:

Originally Posted by the urban politician (Post 7723623)
Pardon the dumb question, but how to you create a smooth concrete surface if you are walking around in it while you are spreading it?

I believe the guy in front of where they are placing the concrete is using a vibrator to help settle it. Two workers on the left side are using a screed to level the concrete and another is using a bull float to finish the surface. After that they won't walk on it for awhile until it starts to cure.

malstorm Feb 26, 2017 2:14 AM

One of my friends owns a concrete pumping business. He said that the placement boom is a putzmeister and is self jacking to go up as the building rises. Watched forum for years never posted. Thought I would give some insight.

SteelMonkey Feb 26, 2017 3:26 AM

Quote:

Originally Posted by malstorm (Post 7723900)
One of my friends owns a concrete pumping business. He said that the placement boom is a putzmeister and is self jacking to go up as the building rises. Watched forum for years never posted. Thought I would give some insight.

Was wondering if that was gonna stick around for awhile. Thx for the tidbit :tup:

LouisVanDerWright Feb 26, 2017 5:52 AM

Man they are really cranking on this one. I assume there will probably be another climbing pump on the West core as well? Or will this one reach across the entire project? I assume it can't since the area it is placed in will set back after less than half the total project height.

kayosthery Feb 26, 2017 12:40 PM

Quote:

Originally Posted by LouisVanDerWright (Post 7724015)
Man they are really cranking on this one. I assume there will probably be another climbing pump on the West core as well? Or will this one reach across the entire project? I assume it can't since the area it is placed in will set back after less than half the total project height.

Both climbing cores will have Concrete Placing Booms. Not sure if the CPB on the tubular pedestal will be moved to one of the cores, or if there will eventually be 3 CPBs.

PeteOsbourne Feb 27, 2017 8:27 AM

Don't like it a bit. Looks like paper accordion... :(

Kenmore Feb 27, 2017 1:34 PM

The photo documentation of construction thus far has already been awesome. This is going to be jaw dropping to watch rise.

Anthony.art Feb 27, 2017 5:26 PM

Upper wacker drive extension pour just started.

Testing station
http://i.imgur.com/9wcM7nSh.jpg

Quite the reach
http://i.imgur.com/12y7GAuh.jpg

Tight squeeze
http://i.imgur.com/9RjZnzUh.jpg

http://i.imgur.com/wDdbkZhh.jpg

Daprato Rigali Feb 27, 2017 6:47 PM

Quote:

Originally Posted by Kenmore (Post 7724938)
The photo documentation of construction thus far has already been awesome. This is going to be jaw dropping to watch rise.

you aren't kidding. I cant go more than 15 minutes without checking this page for more pictures and updates.

Amazing so far.


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