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Old June 9th, 2007, 10:19 AM   #1681
Skyman
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Gonna start soon
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Old June 9th, 2007, 04:31 PM   #1682
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, me too.
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Old June 9th, 2007, 04:49 PM   #1683
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Quote:
Originally Posted by Cliff View Post
I know I'm slow, but I just got that sense of scale of how tall this thing will be!
I was in Sydney (city) a while ago and I was thinking that Chicago Spire will be nearly twice the height of Sydney Tower. Imagine it in the same place as Sydney Tower.
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Old June 9th, 2007, 05:28 PM   #1684
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It'll be more than twice the height of the tallest buildings in Singapore!!!

I did a quick comparison in the Singapore Skyline - the buildings around it are all 280m
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Old June 9th, 2007, 07:19 PM   #1685
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Quote:
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It'll be more than twice the height of the tallest buildings in Singapore!!!

I did a quick comparison in the Singapore Skyline - the buildings around it are all 280m
wow,, nice skyline,,, cluster of Buildings,,, i like it
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Old June 10th, 2007, 06:43 AM   #1686
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Feworkr, do you know why that is? I realize that there are obvious associated costs with building tall, but is there anything specific that drives up the cost? I am very interested to know this. Thanks.
My experience is with curtainwalls and window walls , some unitized, some not. One example would be Grand &Kingsbury. Above the 30th floor, the windows near the corners had to be 'steel loaded' (steel placed within the aluminum members) to meet the windload requirements. As a building gets taller, the windloads increase, esp. at the corners, so more 'work' is involved. Another building I worked on, 50 E. Chestnut, required 50% more 'anchorage points' above floor 35 for the curtainwall. The time spent getting all materials up on the outside 'skip hoist' increases as the building goes up. As does the 'congestion'. When we start out with our windows, there's not too many people on site. But by the time we get to 20 or 30, we have drywallers, painters, cabinet guys, people installing carpet, appliances, etc. - so the skip time increases roughly 3% for every 10 floors. As does congestion in the 'dock' area. More trades, more people, more trucks - it's a nightmare. NONE of the GC's can really get a handle on it. At McCormick place, we took a 'bath' in man-hours because the place is so spread out - that was never figured in the bid. (Some 2000 lb. pre-glazed units had to be 'quadruple handled' before installation) Time of getting materials to their floors is an obstacle as is engineering requirements and the extra work involved to meet those requirements on any high-rise.
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Old June 10th, 2007, 06:56 AM   #1687
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Why is this a good design? Ok, let's see:

1) Yes, it is another 'twisting' skyscraper knock-off. A design that has been doing its rounds lately. However, at least it's not just another box. Also keep in mind that the twisting skyscraper concept is still a new one, but Calatrava has taken this idea further and put it into context:

2) Calatrava wanted the twisting design of the Spire to emulate "the plume of smoke from a campfire lit centuries ago by Native Americans at the mouth of the Chicago River." This concept is fundamental in most of Calatrava's designs, as his style is generally referred to as 'organic architecture', thus borrowing natural elements and manifesting them in structures built by man. At least there is some (albeit very little) historical significance behind the design of the tower, rather than it being a twisting skyscraper for the sake of it.

3) The curved design will also minimise wind forces without the need for a mass damper as required by many rectangular skyscrapers (e.g. Taipei 101, Trump World Tower, Yokohama Landmark Tower). Instead, the Chicago Spire has a tapered concrete core (narrower on one end than the other) and shear walls to counteract wind forces.


Now I would definitely trust a professional, trained architect like Santiago Calatrava to come up with a fitting design for Chicago. As stated previously, Chicago spearheaded modern skyscraper design for decades with revolutionary buildings like the John Hancock Tower and Sears Tower. The Chicago Spire will just be another in a line of such towers to come.
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Old June 10th, 2007, 07:41 AM   #1688
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Back on topic...
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Old June 10th, 2007, 08:15 AM   #1689
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I love reading this stuff; I wish somebody would get the real skinny from every engineer, craftsman, and heavy equipment operator as to what goes into the building of a single skyscraper, maybe starting with the Chicago Spire. Thanks
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Old June 10th, 2007, 10:06 AM   #1690
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when are they gonna bring the big guns in the area to start working ??? this week the one in Moskow should start..I hope this one doesn't stay behind
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Old June 10th, 2007, 06:24 PM   #1691
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..

Last edited by SGMD1; September 21st, 2013 at 05:50 PM.
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Old June 10th, 2007, 06:41 PM   #1692
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/\ hah, at first glance, i thought the building you were talking about "the Regatta" was behind that beige tower!
Talk about unfitting! Hey, atleast its interesting!
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Old June 10th, 2007, 06:49 PM   #1693
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Quote:
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/\ hah, at first glance, i thought the building you were talking about "the Regatta" was behind that beige tower!
Talk about unfitting! Hey, atleast its interesting!
That beige tower includes the blue cladding you see at top of it! :P
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Old June 10th, 2007, 08:49 PM   #1694
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BVIC

So its Captain BVic to us all now. Don't tell me your driving the Boat!

MPTOM
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Old June 10th, 2007, 09:04 PM   #1695
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can i ask if anyone knows how many times it will rotate (amount of turns on spire)?
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Old June 10th, 2007, 11:38 PM   #1696
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Quote:
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can i ask if anyone knows how many times it will rotate (amount of turns on spire)?
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Old June 11th, 2007, 02:24 AM   #1697
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Quote:
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It's called "The Regatta" but honestly I don't find it that beautiful. This is a picture of the opposite side taken back in March:



That manila brick is just horrendous IMO.
Ahhhh Interesting... Well it is not too bad... I think that tan fascade should change it to stainless steel so it would look very neat and attractive.
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Old June 11th, 2007, 02:49 AM   #1698
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Forget the damn park... I want to see some work on the tower site before I get all excited!!!
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Old June 11th, 2007, 02:54 AM   #1699
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Does anyone know if they've applied for a building permit yet with the city or at least gotten a foundation permit to start the base? They can't do anything but move some earth until they do.
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Old June 11th, 2007, 03:15 AM   #1700
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I have a friend who is an engineer with STS, and the ground has been tested for this building and it can support it. I think the interesting part will be to see which, if any, large Chicago general contractors bid on this project with its questionable funding at this point. VERY large companies like Case foundation, or any other caisson drilling outfit will want a whole lot of $$$$ upfront, in case this project tanks after a few months.
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