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Supertalls Discussions of projects under construction between 300-599m/1,000-1,999ft tall.
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Old October 24th, 2014, 08:06 AM   #1541
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Quote:
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Such a tall building needs serious foundations at least 70-100 feet deep, unless there is bedrock at lower depth. If they have to excavate so much the nearby buildings need to be all stabilized before digging can proceed. and stabilization pillars would take a lot of useful space underground. Can someone explain how they gonna do it ?
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The bedrock is very shallow at this location, therefore they will not be digging a very deep foundation (common in Manhattan). The structure itself will be anchored into the bedrock.

Screenshot of the base (showing one level basement) from a SHoP presentation on the tower from earlier this year:



To clarify, one thing is the excavation and another the foundation, the excavation is not the foundation per se, nor is it really needed to do it.
I mean, when you see thet they dig a large and deep pit, people tend to believe that it is for the foundation, and usually it is not. Most times those pits are for accomodating spaces needed for the building, the actual foundations come bellow that.

For example, the deep pit at Los Angeles Wilshire is to make space to the very large parking garage that tower needs. In the case of Nordstrom, I guess they will put some parking along with loading docks and deposits for the store and other service spaces. If those building didn't need those spaces, they wouldn't have to dig as deep as they did for them.

In Jersey City, being low lying near the Hudson River, I guess they must have a problem with a high water table, so making underground garages is problematic and expensive, hence you see that many towers in Jersey City have overground parking structures. There, since they don't do underground parking, they don't have to dig huge pits and just dig the piles from the surface level. (the piles do go many dozen meters deep)

In this case case, the space is so small, that underground parking is impractical, and they just will build one underground level for some services. Being the bedrock near the surface, I guess they will just dig a bit more so they can sit the building directly there, but as I learned, since the building is to narrow, they will need to use some tension cables, anchored deep in the bedrock, for the building not to topple. Those cables will work at tension, instead at compression, as usual piles do. The weight of the building could be supported by the bedrock, but they need those cables to literally anchor the building to the soil so it doesn't topple.

Usually, buildings don't need those tension cables, because are wide enough for not toplling, and just need some foundation for the soil to support them.
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Old October 24th, 2014, 10:02 AM   #1542
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For example, the deep pit at Los Angeles Wilshire is to make space to the very large parking garage that tower needs. In the case of Nordstrom, I guess they will put some parking along with loading docks and deposits for the store and other service spaces. If those building didn't need those spaces, they wouldn't have to dig as deep as they did for them.
In NYC most towers have limited or no parking (it generally isn't allowed), so buildings don't need much space to accommodate this use.

Outside of Hong Kong, it's the only city I know of where random 60 floor towers are built with no parking. And even in Hong Kong it's more common than in NYC.
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Old October 24th, 2014, 03:50 PM   #1543
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Everybody who will live in this tower has a personal driver anyway.
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Old October 24th, 2014, 08:40 PM   #1544
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i cant imagine owning and driving a car in New York. that would suck so hard. my one experience driving in a car that wasnt a cab in new york was terrifying haha.

have we seen floorplans for this building? there are multi-floor units at least near the top right?
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Old October 24th, 2014, 08:58 PM   #1545
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have we seen floorplans for this building? there are multi-floor units at least near the top right?
I don't think we've seen floorplans per se, which I'd also be very curious to see, although I know there is a floor/core diagram buried somewhere in this thread. I also recall reading about multi-floor units near the top... someone tell me if I'm crazy, but are the top two units fourplexes?
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Old October 24th, 2014, 10:16 PM   #1546
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In NYC most towers have limited or no parking (it generally isn't allowed), so buildings don't need much space to accommodate this use.
I'm fairly certain that parking is not allowed in residential projects south of 96th Street without a special permit.
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Old October 25th, 2014, 08:39 PM   #1547
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I'm fairly certain that parking is not allowed in residential projects south of 96th Street without a special permit.
True. Though sometimes new towers south of 96th have some parking anyways, because they got the special permit. It's almost always very limited parking, though (so, for example, it will be a 200-unit highrise with 30-40 parking spaces, and only for residents).

New commercial buildings, though, (hotels, offices, institutions) almost never have parking. They don't even bother applying for the special permit.
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Old October 28th, 2014, 11:16 AM   #1548
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That's absolutely amazing tower!!!
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Old October 28th, 2014, 11:27 AM   #1549
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This tower is the one that takes the Cake and it's the CAT's MEOW as well, all in one.
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Old October 29th, 2014, 01:32 AM   #1550
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An amazing eyecatcher for sure.
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Old October 29th, 2014, 03:25 AM   #1551
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Hell yeah it is! What with all the remarks concerning 432 park avenue being a needle... This bad boy is just as tall as 432 and only half as wide! Wait a sec... With the height to width ratio on this building... Is this going to be the thinnest skyscraper (super-tall) on planet earth!?!?????
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Old October 29th, 2014, 03:55 AM   #1552
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Why, yes sir. It is.
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Old October 29th, 2014, 04:13 AM   #1553
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That is why this will be iconic. The design is iconic too.
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Old October 30th, 2014, 04:00 AM   #1554
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https://www.facebook.com/10141304994...levant_count=1

Little demonstration today.......
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Old October 30th, 2014, 05:15 AM   #1555
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This directly related to Steinway?
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Old October 30th, 2014, 05:17 AM   #1556
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Boobs Kowaltchuk got a few of his friends over
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Old October 31st, 2014, 07:54 AM   #1557
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Boobs Kowaltchuk got a few of his friends over
He is making some more progress.
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Old October 31st, 2014, 08:23 AM   #1558
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It's nice to see that Jaun came over to help.
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Old October 31st, 2014, 09:25 AM   #1559
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Quote:
Originally Posted by Trex-md View Post
...This bad boy is just as tall as 432 and only half as wide! Wait a sec... With the height to width ratio on this building... Is this going to be the thinnest skyscraper (super-tall) on planet earth!?!?????
A 400+ supertall.
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Old October 31st, 2014, 09:49 AM   #1560
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They have ditched the bobcat and changed their 320D to a bigger model 330C. Getting down to business.
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