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

[JManc]

What are the buildings in front of and behind Pan Am?

[MAC123]

Originally Posted by JManc

What are the buildings in front of and behind Pan Am?

From which direction? From 270 facing Pan Am, the Helmsley building is in front and Grand Central is behind. From the opposite side, the opposite.

[TonyNYC]

Originally Posted by JManc

What are the buildings in front of and behind Pan Am?

343 Madison Ave in front.. 175 Park behind.

[NYguy]

https://mobile.twitter.com/home

[JMKeynes]

Will there be landscaping on the Park Avenue side like there will be on the Madison Ave side?

https://www.cb5.org/cb5m/resolutions.../resolution_4/

Interestingly, it seems that Chakrabarti, whom I believe was a partner at ShOP, is designing the greenspace.

I'm curious to see what's planned for the 47th and 48th St sidewalks. I hope that they have a lot of landscaping. In fact, considering that the new 415 Madison, which also will be on 48th, seems to also have some street-level greenspace, 48th could be a very verdant and beautiful stretch.

"WHEREAS, The Applicant is choosing to enlarge the sidewalks on East 47th Street and East 48th Street, in part accommodate the surge in pedestrian traffic caused by increased number of employees, as well as to render the building compliant to the sky plane exposure requirements while utilizing all the available FAR; and

WHEREAS, The proposed POPS designed by architect Vishaan Chakrabarti would have a green wall and water features, would have seating that can be used as work space, with seating and tables of different heights, a kiosk that would sell coffee, cold and hot beverages..."

[Kurtz]

Xing Lin,

Wow! Thank you

Originally Posted by Talltowernerd

It sounds like, from what the other posters are saying, there will not be any concrete in the core. Usually in that case they would layer drywall around the elevator shafts and stairwells in the core as fireproofing and let the structural strength come from the steel skeleton.

Thank you, but which is or would be the reason why they don't use super concrete in the core?

[BK1985]

Originally Posted by Kurtz

Xing Lin,

Wow! Thank you


Thank you, but which is or would be the reason why they don't use super concrete in the core?

It’s because the building sits over too many train lines.

[JMKeynes]

Mr. Kurtz:

NY office buildings are always steel-framed, whereas residential and hotels have concrete.

[Drcastro]

But actually, it’s the train shed thing in this case.

[JManc]

Originally Posted by TonyNYC

343 Madison Ave in front.. 175 Park behind.

Thanks.

[Kurtz]

Originally Posted by JMKeynes

Mr. Kurtz:

NY office buildings are always steel-framed, whereas residential and hotels have concrete.

One WTC
The tower structure is composed of a “hybrid” system combining a robust concrete core with a perimeter ductile steel moment frame. The reinforced concrete core wall system at the center of the tower acts as the main spine of the tower, providing support for gravitational loads as well as resistance to wind and seismic forces. The core is approximately square in footprint with a depth of about 110 feet at the base, large enough to be its own building. It houses mechanical rooms and all means of egress. The core structure is compartmentalized with additional interior shear walls in orthogonal directions.

The core wall thickness varies along the height of the tower. The concrete strength ranges from 14,000 psi to 8,000 psi for foundation, columns and tower core walls, and 8,600 psi to 4,000 psi for slabs. The walls are interconnected over the core access openings using steel link beams embedded into the concrete walls.
https://www.structuremag.org/?p=1885

Vandy
One Vanderbilt’s dual steel-framed and reinforced concrete core requires a complex foundation. When it was time to lay this mat-foundation, it was the largest continuous concrete pour in Manhattan’s history. Over a span of nineteen hours, five pumps poured 8,438 tons of concrete to lay a mat-foundation that is nine and a half feet deep. It will support One Vanderbilt’s nearly 9,000 tons of reinforced concrete and 25,000 tons of steel. You can stack 5,500 elephants on this foundation, and it wouldn’t falter.
https://aecom.com/blog/building-one-vanderbilt/

[JMKeynes]

Interesting. When you see office buildings rising, you really only see steel.

[UpwithOlives]

[QUOTE=NYguy;9472853]https://mobile.twitter.com/home

I spy new verticality on the NW corner...

[Busy Bee]

"WHEREAS, The Applicant is choosing to enlarge the sidewalks on East 47th Street and East 48th Street, in part accommodate the surge in pedestrian traffic caused by increased number of employees, as well as to render the building compliant to the sky plane exposure requirements while utilizing all the available FAR; and

I don't follow this. Is this saying the building will be set back, because the renderings or the axonometric don't show this?

[JMKeynes]

Originally Posted by Busy Bee

I don't follow this. Is this saying the building will be set back, because the renderings or the axonometric don't show this?

I assumed that the city would eliminate traffic lanes.

[BK1985]

Originally Posted by JMKeynes

I assumed that the city would eliminate traffic lanes.

I assume its because the base is tapered inward but its really hard to tell.

[JMKeynes]

Originally Posted by BK1985

I assume its because the base is tapered inward but its really hard to tell.

I thought about that too, but the base is still massive, so the areas adjacent to
the taper will be marginal.

[NYguy]

Originally Posted by UpwithOlives

I spy new verticality on the NW corner...

Yes you do. Only night pics this time, but floors are finally taking shape above the tabletop...



December 11, 2021


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[UpwithOlives]

[QUOTE=NYguy;9474594]Yes you do. Only night pics this time, but floors are finally taking shape above the tabletop...


Great shots! Worth the wait.

[NYCityBoy]

Even though we don't have official renderings a few things are confirmed by these recent photos:
1. The north and south facades will slope towards each other as the building ascends.
2. You can see the start of the diamond bracing that will adorn the east and west facades at the base of the western platform.
3. The steps in the north and south façade are very pronounced and not subtle (good!)