NEW YORK | 270 Park Ave | 1,389 FT | 57 FLOORS - Page 120

Drcastro · #**2381** Posted **Oct 6, 2021, 5:33 PM**

Just as @UpWithOlives called it last Thursday.

That hoist is really going to be massive as it gets above each setback; similar to the Spiral.

JMKeynes · #**2382** Posted **Oct 6, 2021, 7:00 PM**

I think that the Good Lord clearly regards New York as the Promised Land, and He is smiling on our great metropolis!

Raysiri · #**2383** Posted **Oct 7, 2021, 11:41 AM**

Seems like 270 Park is inspired of the MetLife Building’s shape.

JMKeynes · #**2384** Posted **Oct 7, 2021, 3:52 PM**

JMKeynes · #**2385** Posted **Oct 7, 2021, 3:54 PM**

NYguy · #**2386** Posted **Oct 7, 2021, 4:35 PM**

Quote:

Originally Posted by JMKeynes

https://pbs.twimg.com/media/FBCNJzmWYAI7jsS?format=jpg&name=large

Quote:

Originally Posted by JMKeynes

https://pbs.twimg.com/media/FBCNJzmWYAI7jsS?format=jpg&name=large

https://pbs.twimg.com/media/FBCNDopV...jpg&name=large

Remember to always post the source of these photos....

https://twitter.com/cperruna/status/1445810791232516096

JMKeynes · #**2387** Posted **Oct 7, 2021, 4:41 PM**

Quote:

Originally Posted by NYguy

Remember to always post the source of these photos....

https://twitter.com/cperruna/status/1445810791232516096

Thanks. Someone from Asia on SSP posted them, and there wasn't a credit. That's why I omitted it. Also, since he's from Asia, I assumed that he didn't take them.

mrnyc · #**2388** Posted **Oct 8, 2021, 3:52 PM**

jeepers! that is just an amazing/insane amount heavy metal being assembled up there.

NYguy · #**2389** Posted **Oct 11, 2021, 2:14 AM**

Ladies and Gentlemen, we have crane!

https://www.instagram.com/p/CU3mNxwguXA/

NYguy · #**2390** Posted **Oct 12, 2021, 12:42 AM**

Seems it wasn't that long ago that we were waiting on 270 Park Avenue to be demolished. And now, we're here, watching a full fledged supertall skyscraper rise on the site.

Yet we still, STILL, have not seen an official rendering. I'm beginning to think we may never see one.

OCTOBER 11, 2021

https://www.instagram.com/p/CU574k-sY_r/

JACKinBeantown · #**2391** Posted **Oct 12, 2021, 4:44 PM**

Quote:

Originally Posted by NYguy

The outer columns are clearly at an angle in the direction of the length of the building. Are they also leaning outward in the direction of the width of the building? I think so, but it's hard to tell from photos?

If they are leaning out, can someone with engineering knowledge please speak about their strength and why their angle doesn't present a problem with them holding up the weight of the building? I realize they are enormous, but so is the building that will be on top of them. Thanks.

NYguy · #**2392** Posted **Oct 12, 2021, 5:21 PM**

Quote:

Originally Posted by JACKinBeantown

The outer columns are clearly at an angle in the direction of the length of the building. Are they also leaning outward in the direction of the width of the building? I think so, but it's hard to tell from photos?

If they are leaning out, can someone with engineering knowledge please speak about their strength and why their angle doesn't present a problem with them holding up the weight of the building? I realize they are enormous, but so is the building that will be on top of them. Thanks.

Are you talking about the columns on Park Ave or the side columns (47th)? You can see both in that photo.

JACKinBeantown · #**2393** Posted **Oct 12, 2021, 5:35 PM**

Quote:

Originally Posted by NYguy

Are you talking about the columns on Park Ave or the side columns (47th)? You can see both in that photo.

The ones visible in the photo (over the taxi). Obviously they span out to the sides. But if you were in the taxi, would they also be leaning toward you?

In other words, are they aligned in a plane perpendicular to the ground/foundation? Is their plane parallel to the scaffold? Or is that plane at an angle leaning toward the scaffold (say 5-10º)?

My point is that except for the center of the building it appears that there are no vertical columns, and that those on the outside are leaning outward. I'm not an engineer (this is why I ask) but it seems that would cause outward force on the outer columns, which is the opposite of what my non-engineer-educated brain thinks would be necessary. And if they are leaning outward, what is preventing them from pancaking when the rest of the 1,388-foot building is on top of them?

Drcastro · #**2394** Posted **Oct 12, 2021, 5:57 PM**

The columns on all four sides lean out. The east and west (Park and Madison) sides much moreso obviously. Structurally, think of the rest of the building resting on a very strong table supported by those leaning columns (and the non leaning ones). The outward forces are countered by all the massive beams spanning the tabletop. This is why all that crazy massive steel is up there at the second/third floor level. Furthermore, the building above will not be just dead weight sitting on the table. It will have structure that distributes the load and stiffens the whole building.

Xing Lin · #**2395** Posted **Oct 12, 2021, 6:06 PM**

Quote:

Originally Posted by JACKinBeantown

In other words, are they aligned in a plane perpendicular to the ground/foundation? Is their plane parallel to the scaffold? Or is that plane at an angle leaning toward the scaffold (say 5-10º)?

The points of those column 'trees' are perfectly aligned along 47th and 48th streets, but each member slants out a different amount to meet the bowed floorplate at the top of the tabletop structure. As a result, each column shares a plane with only one corresponding column on the other side. The greatest slant is at the centre and the columns at Park and Madison are vertical in the east-west plane.

JACKinBeantown · #**2396** Posted **Oct 12, 2021, 6:27 PM**

Thank you for those explanations. I thought what you each said was the case, but it helps to have it explained by someone who can actually see it, and who has the engineering knowledge.

Let's hope the connections from those columns to the floorplate beams are strong!

PittsburghPA · #**2397** Posted **Oct 13, 2021, 2:41 AM**

Am I missing something or does this not have a concrete core? Where is it?

Drcastro · #**2398** Posted **Oct 13, 2021, 7:03 AM**

Quote:

Originally Posted by PittsburghPA

Am I missing something or does this not have a concrete core? Where is it?

Certainly not yet. Remember, it sits above a train yard. We don’t even know for sure what the outside is going to look like!

Xing Lin · #**2399** Posted **Oct 13, 2021, 8:30 AM**

I believe this will be an all-steel structure like 30HY, also built above an active rail yard. The steel service core looks pretty interesting, beginning closer to Madison Ave before a transfer floor to a central core a few floors up:

(diagram posted by NYGuy earlier in this thread)

On a related note, what kind of fireproofing are elevator and stairwell shafts encased inside in all-steel buildings, if not concrete?

TonyL · #**2400** Posted **Oct 13, 2021, 10:38 AM**

That kinda looks like it's sections set on high support floors.