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I believe I’ve never seen this before!
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Since renderings of unrealised projects are also posted in this topic, here is another one.( Visionary and Cancelled Projects & Proposals | Discussion)
Stock Exchange Tower 540 meters 140 floors, Cancelled
This was apparently the second proposal of the “East River Landing” project, which was proposed in the mid-1980s and also never realised.
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Philadelphia skyline 1988 by Philly SkyGuy, on Flickr
Independence Blue Cross Tower under construction, core nearly topped out and steel about to rise above the buildings in the foreground. The first skyscraper in Philadelphia using slip form construction
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New Orleans Office Tower by César Pelli 1983 (Cancelled)
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„ Interesting history tidbit I just learned about: In the early 1980s, Helmut Jahn designed and proposed a supertall skyscraper for Houston that would have been the second tallest building in the entire country at the time, only behind the Willis Tower in Chicago. Even today, it still would have been the tallest building in Houston by a long shot, standing 1,404 feet (428 m) tall. It was slated to be completed in ’86 but was canceled due to a lack of funding. An oil bust killed it. If you want to get an idea of what it could have been like in real life, the architect went on to use a similar design for the One Liberty Place building in Philly. It’s a good bit shorter, though. I just can’t help but yearn for what our skyline could have been—a towering Art Deco outlier among the flat panel and glass buildings that tower above us today.“
https://www.reddit.com/r/houston/comments/1es4fkd/in_the_80s_we_almost_got_the_2nd_tallest_builing
Cancelled
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Idk who made that rendering, it didn’t come from Jahn. Its fan art, and the tower is in the wrong location and the orientation is wrong
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It’s a FAN ART rendering on Reddit. What’s more interesting is whether there are static drawings of the three designs that went through to the second round? But I think this competition would be better dealt with in another topic than here. Because in the first round over 10 or 20 architectural firms were invited.
Topic: visionary and cancelled projects
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http://badcatrecords.com/AA_review_BERNhill.htm
Original World Trade Center rendering. Not the architectural model, an actual rendering!
And here’s the model. I’ve never seen these two images before
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Flatiron Building
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Land Title Building, found on Wikimedia. This same photograph was also posted back in March 2020 by @Mackensen
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Two Prudential Plaza bevor the completion march 1990.
In this skyline view, three skyscrapers are still under construction in 1989.
Collection by Miss Mackensen
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Original 1964 WTC model as envisioned by Yamasaki
How the 7WTC site looked on the original model
Updated 1966 Model compromising with the PA’s cost concerns; upper lobby mezzanines and plaza pools are removed, and plaza buildings are black, separated, and multi-storied
Meanwhile Greenwich Street has been eliminated on the 7WTC site, with an updated loading ramp model
1969 Tony Vaccaro photo; this model shows an updated 3WTC that matches the plaza building designs, a more finalized plaza, a placeholder building on the west half of the 7WTC site, and a bridge over Vesey St
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I walked by there day before 9/11.
Gillender Building
350 Park Avenue
Equitable Trust Building
„ That huge transfer truss in the north side of the main block removes, at the lower floors, two columns that would otherwise have interfered with the Morgan Building foundations. The other interesting thing in this wide view is the shallow-gable temporary protection over the skylight in the Morgan roof.“
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The upper wall girders in the Park Row Building are designed as lattice trusses, while the lower ones are designed as sheet metal girders.
This wind bracing used to be called a table top, the next two drawings explain this using a skyscraper in San Francisco.
I posted these two pictures a long time ago in the 270 Park Ave. topic, in that post I also wrote briefly about the table top construction.
„ The trading floor required a large column-free space, while the offices were built with an ordinary column grid. The columns that would have
been in the way at the first floor are transferred using floor-high trusses:“
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Has this been posted before?
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Key Tower Cleveland under construction
https://www.clevelandskyscrapers.com/key-tower/yi1obn3dhp4z5f3n4sc0xdsqzir3c9
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