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Old June 14th, 2007, 10:02 PM   #281
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Quote:
Originally Posted by geoff_diamond View Post
The core needs to have a head start on the rest of the floorplate for a couple of different reasons: a) there needs to be room for the hydraulic formwork system to work its magic - not to mention there just needs to be room for the formwork in general (usually requires 2 to 3 stories), b) since the core typically provides most of the building's lateral stability, the core must sufficiently cure before it can be expected to provide any usable strength.

Reading this I realized that this puppy being an office building will be steel frame construction instead of concrete as we have seen with most of the buildings currently under construction i.e. Trump, OMP, and so on. This means that it will rise fast since they don't have to pour floor plates.
I suppose the same is going to be true for 353 N. Clark and 155 N. Wacker.
Will it rise faster than 108 N. State?
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Old June 14th, 2007, 10:10 PM   #282
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I didnt think of that...It will be nice to see a building like this one go up rather quickley (at least compared to trump, WV)
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Old June 15th, 2007, 03:38 AM   #283
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Quote:
Will it rise faster than 108 N. State?
Now thats like comparing apples and oranges. Regardless of what materials may be used, a 60- story building will not rise as fast as a 17 story one.
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Old June 15th, 2007, 05:25 AM   #284
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June 12, 2007

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Old June 15th, 2007, 05:26 AM   #285
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June 14, 2007





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Old June 15th, 2007, 07:50 AM   #286
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Quote:
Originally Posted by Retrograde View Post

It rising like a rocket.

Houston, we have cleared the tower (office tower to the east that is).
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Old June 16th, 2007, 06:37 AM   #287
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^-- (west)
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Old June 16th, 2007, 08:57 AM   #288
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^-- (west)
yup, you're correct, west. I think I had one beer too many last evening.
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Old June 21st, 2007, 09:18 AM   #289
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spotlights

It is 1:00am, and from my south-facing apartment on the 33rd floor at 1133 N dearborn, I observe two (at least) huge, very bright spotlights on at 300 North LaSalle. Does this mean that construction work is likely to be going on at this hour? If not, what would be some of the reasons for the lights, as I have never seen them before? For the record, I am very confident that I would have noticed them if they had previously been used...

Also, I am curious if anyone on the forum has an opinion on a general 'completion percentage' for a building once caissons are drilled. In other words, once caissons are drilled for a particular building, is it safe to say that it is more than 95% likely that building will be completed, or merely 80%, or even less?

Thanks a lot, and let me just say that I am very, very grateful for this website and all its participants (especially Spyguy with all the renderings). I really don't know how I got by on only Emporis for all that time.
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Old June 21st, 2007, 04:52 PM   #290
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going by emporis, you're on the top floor...must be a nice view!
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Old June 21st, 2007, 05:04 PM   #291
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spot lights

It's fairly standard for tower cranes to have huge spotlights that stay on all night long. I have had my condo in MPTower3 lit up like noon when Sky55 was being built. As they get higher it should be out of your view. Given that there are 2 cranes on the site I would bet you that this is the source.
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Old June 22nd, 2007, 02:10 AM   #292
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I would say that caisson drilling indicates about a 95-99% chance of the tower being completed. I can only think of one tower in recent memory in Chicago that stopped construction of any lengthy period of time (one of the River East Center pieces of shit). Even that was completed after an 18-24 month stoppage, however.
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Old June 27th, 2007, 06:01 AM   #293
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Where's 300 N LaSalle?
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Old June 28th, 2007, 03:02 AM   #294
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peek a boo
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Old June 28th, 2007, 10:47 PM   #295
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Curtain wall is supposed to start by September. Here's a full-sized mock-up:

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Old June 29th, 2007, 07:58 AM   #296
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June 28, 2007













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Old June 30th, 2007, 03:48 AM   #297
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Thanks Retro!
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Old July 4th, 2007, 07:09 PM   #298
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Old July 9th, 2007, 04:14 AM   #299
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Installation of the steel frame has begun.
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Old July 9th, 2007, 10:42 AM   #300
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Flubnut, is that a real shot? This has the potential to be one of the the best curtain walls in the boom. 1180 Peachtree's curtain is amazing (also Pickard Chilton).
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