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Old August 11th, 2008, 04:00 AM   #7081
backupcoolmen
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Quote:
Originally Posted by Msradell View Post
Getting technical here, concrete doesn't dry, it cures. Curing of concrete is actually an exothermic process (generating heat) and if concrete cures too fast it can become brittle. Preventing concrete from freezing before it cures is actually easier in many cases than keeping it from curing too fast and hot weather.

I thought I'd interject a little technical data here to get a discussion turned back towards the subject.
yes i learned this in integrated student technologies, you actually have to keep cement wet often in dry climates so it dries better
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Old August 11th, 2008, 05:47 AM   #7082
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will this be america's tallest building???
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Old August 11th, 2008, 06:06 AM   #7083
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you bet your bottom dollar it will!!!!
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Old August 11th, 2008, 06:14 AM   #7084
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great! i have a lot of relatives in Chicago! i know they are excited about the Chicago Spire!
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Old August 11th, 2008, 06:42 AM   #7085
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How good do all those surrounding buildings look as well.
And how deep does that hole actually go?
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Old August 11th, 2008, 07:44 AM   #7086
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im looking forward in seeing this rise
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Old August 11th, 2008, 08:20 AM   #7087
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Quote:
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And how deep does that hole actually go?
To the center of the Earth.
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Old August 11th, 2008, 09:53 AM   #7088
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you'll see the last (7th) concrete ring at the bottom and thats it really.
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Old August 11th, 2008, 10:08 AM   #7089
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Quote:
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will this be america's tallest building???
yes. and probably for a longer time
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Old August 11th, 2008, 12:07 PM   #7090
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Originally Posted by Helmet Yawn View Post
i was completely with you with my doubts. but based on the conversation i had last week, i'm 100% certain they are going to start erecting the superstructure before the first snowfall. mind you the guys i talked to still don't know exactly how it's being funded.
WOW.
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Old August 11th, 2008, 01:32 PM   #7091
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Quote:
Originally Posted by climbing_crane View Post
How good do all those surrounding buildings look as well.
And how deep does that hole actually go?
The neighborhood is very upscale or "nice" with the surrounding buildings maintained very well.

The hole is about 70' deep now.

From Uber Alles on SSP - they are doing the gray area at the bottom now.

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Old August 11th, 2008, 03:19 PM   #7092
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so the bedrock is on like 110' depth correct?
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Old August 11th, 2008, 03:50 PM   #7093
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Quote:
Originally Posted by ngeorgiev View Post
so the bedrock is on like 110' depth correct?
Yes
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Old August 11th, 2008, 04:13 PM   #7094
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Quote:
Originally Posted by i_am_hydrogen View Post
Anyone in the market for a unit in the Spire? All you need is $7.1M:

http://chicagotribune.2.homescape.co...NG=-87.6288215
Thanks, hydrogen. Just what I was in the market for. I'm primed to make the downpayment and finance the remaining $7.09M (willing to lower that to $7.089M if necessary). Please direct me to the financial institutions that will be stoomping at the bit and drooling to get my business.

And there's a huge party (pizza rolls, pork rinds, onion dip and chips, finely aged Pepsi) for all Chicago forumers way up there in the stratosphere when I move in.
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Old August 11th, 2008, 07:19 PM   #7095
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I originally thought that the core when all the way to the bottom of the parking garage but this drawing shows it doesn't. Where are the elevators of from the parking garage going to be? I had assumed they would be in the core like they are in most buildings but I'm assuming they don't in this building since they'd change the dynamics of the huge slab at the bottom of the core.
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Old August 11th, 2008, 11:13 PM   #7096
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Pork rinds? I don't think so.
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Old August 11th, 2008, 11:18 PM   #7097
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Source: The Chicago Spire

Building work began in July 2007, with drilling for the first of the 34 caissons that provide the foundations for the whole building. The caisson support system was pioneered in Chicago at the end of the 19th century and has been pivotal in creating the city's world famous skyline.

The other significant foundation project is for the basement walls. A perimeter wall, three feet (0.9m) wide and 80 feet (24m) deep, has been installed and adjacent townhouses protected by secant pile walls. This effectively seals off the surrounding water, allowing construction to begin on the basement and the parking garage.

With an underground garage, the ground level can be dedicated to a public space that will become one of the most attractive plazas in the city.

Unusually, the plaza level will be built first - this includes the lobby of the building and the tension ring that supports the building's seven massive columns. Once plaza works have been completed, the engineers excavate a level below and create a stable surface with poured concrete. Further excavation work takes the building down another level - and another concrete slab is poured. This work is repeated for seven levels until the base of the foundations is reached. Work on the core of the building can now begin.
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Old August 12th, 2008, 04:11 AM   #7098
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Interesting since the earlier video showed the core rising as the garage excavation progressed. This shows that the entire garage will be completed before the core rises. I'm assuming this statement is correct since it's directly from the buildings website. If it's true we won't see anything rising for at least another year.
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Old August 12th, 2008, 05:04 AM   #7099
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Quote:
Originally Posted by Msradell View Post
I originally thought that the core when all the way to the bottom of the parking garage but this drawing shows it doesn't. Where are the elevators of from the parking garage going to be? I had assumed they would be in the core like they are in most buildings but I'm assuming they don't in this building since they'd change the dynamics of the huge slab at the bottom of the core.
Mat top is at bottom of lowest parking level, the colored section was the progress at one point many months ago, they are now excavating the gray area (AFAIK)
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Old August 12th, 2008, 05:48 AM   #7100
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Aug 11 - AM

From above



higer res
2007 series
2008 Q1 series
2008 Q2 series
2008 Q3 series

Early to work ( the digger in the hole was soon at work )


Scale


4 on site ( 3 more on Lower East North Water )


The 7th ring waits



Full Size

From last week
Elbow room for the TownHomes


Accustomed to outside visitors.


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Last edited by harryc; August 12th, 2008 at 06:16 AM.
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