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Old February 12th, 2013, 10:36 PM   #5741
tim1807
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I am curious about that too.:
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Old February 12th, 2013, 10:48 PM   #5742
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How will they switch from 4 to 7 columns on the 57th street side, they cant just add columns with no support underneath, can they?
they'll do something like this, would be my guess:

>>>>>
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Old February 12th, 2013, 10:57 PM   #5743
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I was just thinking about that. But I wouln't expect something similiar. But it's possible, since that part won't be visible from 57th street.
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Old February 12th, 2013, 11:52 PM   #5744
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Still busy with the new floor.
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Old February 13th, 2013, 12:42 AM   #5745
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Still busy with the new floor.
Yup, they worked right up to 5 pm - pretty much the limit of strong daylight. Clearly they are bent on remaining up-tempo on this project and having it fully completed by the end of 2014 (it is mind bogling to realize that this tower will probably be fully copmleted before WTC 1 is). I wonder as the days get longer if they will sometimes even work longer - say to 6 or 7 pm?
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Old February 13th, 2013, 02:28 AM   #5746
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it all depends on how the project was let.

with these high end residential apartments that the developer presells, one would think that there are liquidated damages clauses in the contracts here to incentivize and drive the project to complete on time.
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Old February 13th, 2013, 01:54 PM   #5747
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true, but then it's still amazing that this one will be finished before 1WTC, which has already topped out and cladding >80% done.
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Old February 13th, 2013, 02:55 PM   #5748
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Let's say is again: The speed is crazy! Looks like all column cages are in place, forms are lifted, even floor plates are almost done. They will be definitely pouring early next week.
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Old February 13th, 2013, 02:59 PM   #5749
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a third tower crane, a potain MR415 will be going up at this site towards the end of march.
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Old February 13th, 2013, 05:44 PM   #5750
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Really, nice. It's a smaller crane than these two, but still, is there enough free space for another crane.
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Old February 13th, 2013, 06:17 PM   #5751
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Update on 432 Park from yesterday with a bunch of photos.

432 Park February 2013 Construction Photos

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Old February 13th, 2013, 07:21 PM   #5752
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Getting excited.
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Old February 13th, 2013, 09:50 PM   #5753
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Quote:
Originally Posted by babybackribs2314 View Post
Update on 432 Park from yesterday with a bunch of photos.

432 Park February 2013 Construction Photos

Amazing how thin this thing is! Is there going to be a tuned mass damper somewhere in it to keep from toppling over?
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Old February 13th, 2013, 09:57 PM   #5754
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Isn't that only for earthtquakes?
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Old February 13th, 2013, 10:15 PM   #5755
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86 floors to go!
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Old February 13th, 2013, 10:32 PM   #5756
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"How will they switch from 4 to 7 columns on the 57 St side"

Usually a transfer beam would be placed below the new added column. In this case, the transfer beam would span between the supporting columns below. Gravity loads must always have a path down to the foundation, and in the case of the added columns above the transfer beam, that load path would go from the added columns, across the transfer beam, then down through the supporting columns below. Think of a man standing in the middle of a plank supported by a wall on each end. His weight would go across the plank to the walls on both ends.
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Old February 13th, 2013, 11:08 PM   #5757
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Quote:
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Isn't that only for earthtquakes?
Wind too.
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Old February 13th, 2013, 11:38 PM   #5758
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Quote:
Originally Posted by marcatio View Post
"How will they switch from 4 to 7 columns on the 57 St side"

Usually a transfer beam would be placed below the new added column. In this case, the transfer beam would span between the supporting columns below. Gravity loads must always have a path down to the foundation, and in the case of the added columns above the transfer beam, that load path would go from the added columns, across the transfer beam, then down through the supporting columns below. Think of a man standing in the middle of a plank supported by a wall on each end. His weight would go across the plank to the walls on both ends.
The transfer beam must be incredibly strong to hold up 80 stories of concrete and rebar.
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Old February 13th, 2013, 11:46 PM   #5759
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Maybe the three big ones can hold it and the new columns will be fake extras...just a guess
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Old February 14th, 2013, 12:45 AM   #5760
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hi guys, be sure to keep eye on worlds next tallest resi
http://img32.imageshack.us/img32/532...estresifeb.jpg
not sure how fast 432parkave will rise but it should rise quicker then Mumbias World One due to simple floor plate, gonna be close
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