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Old May 22nd, 2012, 02:43 PM   #2201
RobertWalpole
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This building will be superb. Moreover, we're getting wild shapes in Midtown at Torre Verre, One57, 225 W 57th (most likely), and L&L's Park Avenue tower.
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Old May 22nd, 2012, 05:22 PM   #2202
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Quote:
Originally Posted by patrykus View Post
I responded to you because you suggested that 432 will be more swaying than twins and esb while you actually don't know that. It will be concrete building alright. Damper on the top? I'm not sure if there is space for this, but one thing you can be sure of - people who'll pay tens of millions for the top apartment won't accept any noticeable swaying so I have no doubt engineers have taken this into account.

If one looks at the drawings and the notes you will see that this building WILL have a mass damper AND the open terraces and mechanical floors are designed to disrupt vortices such to reduce wind pressures on the building Notice that the open terraces alternate sides of the building with each section. Opening the structure for two floors every nine floors. this more and engineering solution that has been integrated in the aesthetics and functional aspects of the structure. I am not registered on the "other" forum but this question was asked there as well. (See this forum post#1903 document, read notes on Table 2.2)

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Old May 22nd, 2012, 05:28 PM   #2203
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I'm following this thread for long time and I don't remember any plans showing mass damper. But if you have any please post.
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Old May 22nd, 2012, 05:28 PM   #2204
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Quote:
Originally Posted by jconyc View Post
If one looks at the drawings and the notes you will see that this building WILL have a mass damper AND the open terraces and mechanical floors will function to disrupt vortices such to reduce wind pressures on the building. I am not registered on the "other" forum but this question was asked there as well.
That's right, here's something from DOB about it:

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Old May 22nd, 2012, 05:30 PM   #2205
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Wow. That makes this building even more great in my eyes So with mass damper and concrete structure it definitively won't be more swaying than twins
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Old May 22nd, 2012, 05:33 PM   #2206
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Seems like it's about as thick as the Trump World but only like 1/3 of the width?
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Old May 22nd, 2012, 05:35 PM   #2207
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I can't wait to see this "high percentage" of steel rebars..Those walls will be 90% steel rebars and 10% concrete..
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Old May 22nd, 2012, 05:43 PM   #2208
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Quote:
Originally Posted by DinoVabec View Post
That's right, here's something from DOB about it:

Thanks for upping your post DinoVabec...I couldn't figure out how to do it!
Thanks again for posting these notes and plans earlier...there is a lot of info if one takes the time to study
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Old May 22nd, 2012, 05:47 PM   #2209
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Quote:
Originally Posted by patrykus View Post
Wow. That makes this building even more great in my eyes So with mass damper and concrete structure it definitively won't be more swaying than twins
I'd say it will be less swaying. After all, the Twins were steel only and steel sways a lot compared to concrete
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Old May 22nd, 2012, 05:52 PM   #2210
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It was Nino_B who suggested it:

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Originally Posted by Nino_B View Post
The World Trade Center towers had a sway of roughly 3 1/2 feet near the top where the Empire State Building swayed only about 3 inches in heavy winds. Both were stiffer designs than this one.
But he obviously meant it with mass damper excluded.
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Old May 22nd, 2012, 06:25 PM   #2211
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Quote:
Originally Posted by jconyc View Post
Thanks for upping your post DinoVabec...I couldn't figure out how to do it!
Thanks again for posting these notes and plans earlier...there is a lot of info if one takes the time to study


I think I saw floor schemes already published, I'll try to get them..
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Old May 22nd, 2012, 06:28 PM   #2212
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I'd like to see one with mass damper shown. Maybe I missed it .
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Old May 22nd, 2012, 07:33 PM   #2213
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Really a mud hole down there right now...at least it's not raining as hard as yesterday...pouring retaining walls right now...Cement trucks are needing the excavators to pull them up the ramp
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Old May 23rd, 2012, 05:35 AM   #2214
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Quote:
Originally Posted by patrykus View Post
I'd like to see one with mass damper shown. Maybe I missed it .
Haven't seen any renderings of that yet, but here are a couple of youtube vids showing the TMD in Taipei 101. It appears to be quite the attraction.


Moving during an earthquake?
http://www.youtube.com/watch?v=ohKqE_mwMmo

How it works.
http://www.youtube.com/watch?v=6Zaeu...feature=fvwrel
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Old May 23rd, 2012, 05:41 AM   #2215
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Quote:
Originally Posted by Chad View Post
Seems like it's about as thick as the Trump World but only like 1/3 of the width?
much more than 1/3 the width, it will be much taller than TWT and therefore look thinner.
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Old May 23rd, 2012, 10:38 AM   #2216
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Quote:
Originally Posted by Nino_B View Post
Haven't seen any renderings of that yet, but here are a couple of youtube vids showing the TMD in Taipei 101. It appears to be quite the attraction.


Moving during an earthquake?
http://www.youtube.com/watch?v=ohKqE_mwMmo

How it works.
http://www.youtube.com/watch?v=6Zaeu...feature=fvwrel
Yes, I've seen many materials about taipei101's. Such a damper is quite an engineering marvel in itself. Not to mention putting it in such a thin tower like this
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Old May 23rd, 2012, 11:03 AM   #2217
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That video of Taipei 101's damper during the earthquake is amazing. It makes you wonder how the hell they lifted such a weight up there in the first place though.
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Old May 23rd, 2012, 11:50 AM   #2218
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Quote:
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That video of Taipei 101's damper during the earthquake is amazing. It makes you wonder how the hell they lifted such a weight up there in the first place though.
The damper is build from many steel/concrete (don't remember) plates like counterweights in cranes, so they could have been lifted separately and assembled in place, or they can build a form put steel reinforcement inside and fill it with concrete. That's definitively not something you put in one piece
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Old May 23rd, 2012, 01:14 PM   #2219
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Steel plates bolted together I think, this tower doesn't look wide enough for that though, it would knock the sides out if it swings. Maybe a long thin one, though that would probably take up half the floors.
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Old May 23rd, 2012, 09:41 PM   #2220
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Webcam update of today. Most of the retaining wall seems to be complete. The rebar in the far end should be for the building itself, I guess?

[IMG]http://i45.************/14nmsl0.jpg[/IMG]
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