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Old December 6th, 2009, 06:13 AM   #101
Mr Downtown
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The Columbian and One Museum Park West, flanking the east end of Roosevelt Road.

[IMG]http://i46.************/3338vsz.jpg[/IMG]
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Old December 6th, 2009, 09:01 AM   #102
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super
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Old December 7th, 2009, 11:39 PM   #103
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what a delicious gateway/framing effect those two buildings have.
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Old February 18th, 2010, 05:05 PM   #104
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Fantastic update from jc @ SSP:

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Old February 18th, 2010, 08:07 PM   #105
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Man, someone needs to update the panorama on wikipedia, if only to include this building among the many other new ones south of Grant Park.
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Old February 23rd, 2010, 05:16 AM   #106
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The west tower helps keep the east tower from looking out of place. It would be nice if towers three and four happen some day!

You actually want two more of these diseases forming the south grant park wall?
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Old February 23rd, 2010, 05:18 AM   #107
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Quote:
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June 12th 2009


Why hello Thermal bridging, so nice to meet you
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Old February 24th, 2010, 02:17 AM   #108
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i'm no engineer, so what's the thermal bridging problem in that shot?
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Old February 24th, 2010, 05:00 AM   #109
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The thermal bridging is occurs because the floor plates extend beyond the outside wall to create a balcony without any thermal barrier between the two thermal zones. In the winter when the concrete on the outside gets down to freezing temps, it will also have a big impact on the temperature of the floors on the inside which is what thermal bridging is.
In Chicago and other northern cities the Chicago Style balcony tends to be the most popular balcony used on buildings where it is bolted to the exterior of the building while southern cities tend to do the above style to create balconies.
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Old February 26th, 2010, 08:14 PM   #110
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The thermal bridging is occurs because the floor plates extend beyond the outside wall to create a balcony without any thermal barrier between the two thermal zones. In the winter when the concrete on the outside gets down to freezing temps, it will also have a big impact on the temperature of the floors on the inside which is what thermal bridging is.
In Chicago and other northern cities the Chicago Style balcony tends to be the most popular balcony used on buildings where it is bolted to the exterior of the building while southern cities tend to do the above style to create balconies.
Ohhh thanks for that. So the above kind of balcony is the exception rather than the rule in chicago buildings?
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Old February 26th, 2010, 08:44 PM   #111
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Quote:
Originally Posted by honest86 View Post
The thermal bridging is occurs because the floor plates extend beyond the outside wall to create a balcony without any thermal barrier between the two thermal zones. In the winter when the concrete on the outside gets down to freezing temps, it will also have a big impact on the temperature of the floors on the inside which is what thermal bridging is.
In Chicago and other northern cities the Chicago Style balcony tends to be the most popular balcony used on buildings where it is bolted to the exterior of the building while southern cities tend to do the above style to create balconies.
So there's no magical engineering trick to keep that from happening? or will everyone in this building w/ a balcony notice this issue?
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Old February 26th, 2010, 09:58 PM   #112
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So there's no magical engineering trick to keep that from happening? or will everyone in this building w/ a balcony notice this issue?
it depends on if there is a thermal break within the concrete to reduce the loss of heat. I obviously cant say for sure without seeing specs to this building of course.

Best example of thermal bridges are usually window frames, if you go to one in your house and place your hand need them, you should feel colder air than what is in your house...this is where you are losing energy and obviously, heat.
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Old February 28th, 2010, 05:51 AM   #113
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Fantastic update from jc @ SSP:
I actually like the top of the building/roof much better than the original renderings. Maybe because One Museum Park has a curved crown, now the West building is square at the crown.

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Old March 2nd, 2010, 03:23 AM   #114
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Ohhh thanks for that. So the above kind of balcony is the exception rather than the rule in chicago buildings?
Unfortunately no. Developers (some, not all) who have no stake in the life cycle costs of their projects find it easier and cheaper to do monolithic floor slab pours. Hence the higher life cycle costs get passed onto the individual property owners and eventually the building association as a whole.

Quote:
Originally Posted by Coldwake View Post
So there's no magical engineering trick to keep that from happening? or will everyone in this building w/ a balcony notice this issue?
No magical engineering trick. The concrete on the outside most be separated from the interior floor slab by a non-conductive material.

And yes, everyone in that building with a balcony will notice this issue.
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Old May 29th, 2010, 05:09 AM   #115
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(Taken by me)
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Last edited by i_am_hydrogen; May 30th, 2010 at 02:55 AM.
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Old October 1st, 2010, 05:24 AM   #116
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Taken tonight:
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