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Old February 19th, 2013, 06:40 PM   #5841
tim1807
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Quote:
Originally Posted by King of Construction View Post
I am not sure if that's true. For the more US populated forum you should go to Skyscraperpage. But Skyscrapercity is the best international
But this thread has, especially New Yorkers since they make updates.

Quote:
On topic: the concrete crane from the street goes into the core where it pumps it's concrete into another pump which gets the concrete to the final place. How are they going to do this when the floors go up, they can't simply stick the concrete crane into the core anymore.
This was mentioned some weeks ago, I believe they will pump concrete inside the core up and at some points there will be more pumps to get the concrete all the way up.
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Old February 19th, 2013, 07:41 PM   #5842
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I looked it up, and most probably they will do what I said, use the mechanical floors as resting place for the concrete with more pumps and when the tower is open for water etc.

Pouring on all sides.
[IMG]http://i47.************/fy2xbt.png[/IMG]
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Old February 19th, 2013, 08:12 PM   #5843
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shouldn't be long until the core will reach regular speed or not?
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Old February 19th, 2013, 08:48 PM   #5844
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Quote:
Originally Posted by ZZ-II View Post
shouldn't be long until the core will reach regular speed or not?
The core has to follow floors because concrete pump has limited length and floors will speed up once they reach floors above the podium, which will be soon with current speed.
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Old February 19th, 2013, 08:52 PM   #5845
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Originally Posted by Eric Offereins View Post
If I had to choose a floor to live on
if only i were so unfortunate that i had to choose

i would choose the 3/4 floor apartment just below the penultimate mechanical floors for myself and the 1/4 floor apartment for my guests/family
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Old February 20th, 2013, 03:42 AM   #5846
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I think the core should jump tomorrow and maybe the exterior forms will be raised too.

Then I think they really have to jump the 56th street crane.

BTW, how high can the crane safely be raised until it has to be tied to the building for steadiness? Right now it looks very tall and slender and VERY easy to get out of balance and collapse.
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Old February 20th, 2013, 05:11 AM   #5847
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Quote:
Originally Posted by bigreach View Post
it's apparent the lower third of the building, won't have near the scenery as the top two thirds,, wonder how much more those floors wil be discounted, compared to the one's that overlook the skyline.
It's not quite like they'd have a discount. Usually, lower units have a base price, which increases according to height.
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Old February 20th, 2013, 05:24 AM   #5848
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Quote:
Originally Posted by 600West218 View Post
BTW, how high can the crane safely be raised until it has to be tied to the building for steadiness? Right now it looks very tall and slender and VERY easy to get out of balance and collapse.
I've been wondering about this too.....anyone have any insight on this?
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Old February 20th, 2013, 07:29 AM   #5849
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Quote:
Originally Posted by gramercy View Post
if only i were so unfortunate that i had to choose

i would choose the 3/4 floor apartment just below the penultimate mechanical floors for myself and the 1/4 floor apartment for my guests/family
If $ were no object I'd take the very top, so I could have acess to the roof , put a pool up there, putting green and a see thru 6 foot wall around the perimeter, so the kids (and the drunken guests) wouldn't fall off, that would NOT be pretty, well maybe a 10 foot wall.
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Old February 20th, 2013, 01:48 PM   #5850
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A roof terrace at that height would be cool indeed.
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Old February 20th, 2013, 02:42 PM   #5851
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New steel cages started going in and looks like horizontal cage is being finished as well. I expect core to jump, cages to be placed and other forms to jump too by the end of this week. Pouring next week.
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Old February 20th, 2013, 02:51 PM   #5852
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Yesterday, another floor level poured, and workers are making preparations for forming up the next level. Forms are being stripped from the 57 St side, Supplies are placed on the new floor.

Meanwhile, the concrete pump returns for another day of pouring concrete, this time for the core. The protective sheeting that had covered the top opening of the core forms have been removed.

The cranes are usually jumped according to climbing schedule, and will be braced to the building as it rises.
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Old February 20th, 2013, 03:07 PM   #5853
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Yup, ready for another pour.
There is going to be a pool on the 56th side right? Is that hole for the pool? I don't think so because I thought the pool floor was a few floors higher but what is it?
[IMG]http://i50.************/3004qyr.png[/IMG]
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Old February 20th, 2013, 03:38 PM   #5854
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Workers are wasting no time on this job. A flurry of activity takes place. Already, column rebar cages are being placed, with two such cages in place on the west, and one just placed on the north. At 56 Street, scaffolding is being erected beside the core, through the rectangular opening, for the next floor level. At 57 Street, scaffolding is being placed.

The concrete pump has extended its boom for connections to the concrete placing boom atop the core, awaiting the arrival of Ferrara Brother's concrete trucks.
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Old February 20th, 2013, 03:48 PM   #5855
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Good to have you here marcatio, you know what you're talking about.
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Old February 20th, 2013, 04:20 PM   #5856
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that cutout you see is a two story mechanical room for the retail building.
Pool is on the 9th floor.

workers were are busy removing forms from 3rd level perimeter columns...also pour going on inside...looks like 3rd level floors inside the core...

They are just finishing up rebar wiring on a HUGE beam looks to be full length of building...you can see it very clearly on 56 st from sidewalk...look for a big lift today...I am guessing it is for the 57 st side...
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Old February 20th, 2013, 04:34 PM   #5857
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I know concrete sticks to the steel inside a wheelbarrow. How do they keep it from sticking to the forms?
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Old February 20th, 2013, 05:10 PM   #5858
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I think once the concrete is hard, the forms are easily removable.

@jconyc: All right, I knew it wasn't for the pool.
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Old February 20th, 2013, 06:31 PM   #5859
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While formwork placement takes place on the 57 St side, and core concreting continues, the 56 St crane prepares to raise the exterior climbing forms with the blue spreader beam. The exterior forms have hinged panels to form the columns and spandrels, that are swung away (as seen on the 56 St side) after the concrete has cured enough for their removal. Form release agents are used to keep concrete from sticking to the forms.
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Old February 20th, 2013, 06:56 PM   #5860
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You can see the huge rebar cage/beam only from the park ave camera lying parallel to 56 st at the base of the crane...long dark shape
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