I hope this building tops out above the spire height of One Vanderbilt. It would be a shame for a building this large in width to not be taller…
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The tabletop is key - think of the tabletop and the rest of the building as two structures. They first built a really sturdy table with 16 legs that tie into the shear walls and the foundation. Now they’re building a really big building on top of the table. The loads of the interior columns of the building carry down to the girders and the v columns in the center of the tabletop, The exterior columns carry down to the fan columns on the north and south sides. The slab at ground level is also not just a floor but pulls all those pieces together. That’s all I’ve got… 
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Jeffrey—Thanks. But I am still curious about how all the stresses are transmitted through the table (Above the table is a curved shape but it’s pretty clear about the load system just from viewing the girder system.), to the sheer walls and then down to bed rock. And how does a sheer wall work? What and where are they?
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I can’t imagine it will top out higher than 1388 ft because that would contradict the FAA docs. The FAA needs to know the height of the very top of the building for use in air traffic navigation. Anything higher than what is filed with the FAA may be considered a hazard for aircraft. But it doesn’t matter because 13 feet is not a noticeable difference on the skyline, and the roof height is still almost 100 ft higher than Vanderbilt. Plus the width will probably make it much more imposing from afar than Vanderbilt.
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The table top is the “curved” portion (what is really an elongated octagon) with the fan columns and truss girders. There are no shear walls (simply resist lateral motion and loads) above ground here though, there are load bearing/shear walls underground with the train shed though. But all the vertical loads are transferred to the mega columns that are underground as well. The building force/stress logic is no different than a regular building, the forces are still able to find the path of least resistance back to solid ground, the only reason the building appears as it does at the base was to navigate around the rail lines that are underneath the site.
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It may be semantics but the concrete shear walls are repeatedly referenced in the peer review document…
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I corrected my post to mention none aboveground. Thanks for pointing that out.
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For about 4 years at least. Then 175 will be up and 270 will be the small dog again. Still bigger than Vanderbilt, but still.
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It will ‘look’ taller.
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Not good enough. 
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What’s not good enough?
nvm.
I don’t see how that’s not good enough, the height difference is barely noticeable and for 99% won’t be from a distance. The real factor in this will be what direction you’re looking at them from.
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I wonder how much higher this will rise before the first setback.
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somewhere around 300 feet I’m guessing.
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10 more floors based on some of the diagrams we’ve seen.
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Well, it’s 1 foot shorter than Trump Tower in Chicago. A mere 10 feet shorter than 432 park Avenue down the street. A paltry 12 feet shorter than One Vanderbilt. For this skyscraper to be the only major building under construction in the United States right now, it should be a tad taller to break the other buildings.
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You’re right. Most people wouldn’t notice, but the people on this forum will. 
I care about it, because I think people should always be building better than before. Usually better = taller. The construction, materials, design for this are perfect. The only thing I don’t like is the height. It could always be taller. Anything could!
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Per NYguy:
Some great photos from c.lilianmarlen
Quote:
270park pouring over 100k pounds of #concrete on Saturday starting 4:00am in a race against the snow.
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What is the url for this cam?
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