Great pics NYCLuver!
Wish y'all could see them through my eyes. I may have been to hasty in my judgment of the persons who wrote the PA's quarterly report. In the 6th pic NYCLuver posted you can see hanging scaffold, I believe the base curtain wall contractor is using it to install clips on the girts. |
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Are those the tridents in that picture at the base? Are they staying above ground?
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Skyscrapers, you are comparing a "Big Apple" to a plum. Both are tasty but very different.
A concrete structure does not need spray on fireproofing and I have yet to meet a contractor that wanted to clean fireproofing off of glass. Also, notice all the stuff in the way on Tower One, like the crane decks and the safety nets. Let the tower get a bit higher, let the structure take shape. No one wants to see curtain wall go up only to see it get messed up by other trades. Think of the curtain wall as a beautiful silk dress, it's the last thing she puts on before a night (or a century) on the town. |
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A concrete/rebar 60 story building and a steel beam building 60 floors tall.
Is one building stronger then the other?. |
That all depends on what you consider strong.
Both can take the gravity load equally well. But steel buildings withstand earthquakes MUCH better. They are about equal under wind loads. In a severe fire the concrete building is stronger. As for cost, the steel building is more expensive, but will go up faster, so it's actually cheaper, the savings being in Labor. (A concrete building is cheaper than steel when it comes to fire codes, so the bottom line cost is about the same.) If you want to put up a 60 story apartment building, go with concrete, and pray there are no earthquakes. Otherwise, go with steel. (One can make a concrete building as good as a steel building as far as earthquake performance, but the amount of rebar needed to properly "Cage" the concrete would be more expensive than a steel building.) In New York, I would go with reinforced concrete, in Los Angeles, I would go with steel. I'm a Structural Engineer, can ya tell.:) |
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800 are working on 1 WTC today. Do you know if that will increase when the number goes to 10,000 on the entire project?. |
I was there last Saturday, and this is probably not the first time this has been asked, but what's with the crane sitting at about the 10th floor, northwest corner?
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Will be nice to see once this rises above the rest of the towers.
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Remember also that the Burj Khalifa didn't start its cladding until the building was at around the 80th floor. There's also this building to keep in mind...
http://www.peri.de/shared/references...enter_2_lg.jpg Even the aluminum cladding and window installation on the Twin Towers didn't start until the buildings were about half of their final height... http://www.pbs.org/wgbh/nova/wtc/ima...nstr1971-l.jpg |
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Yeah, but the point is that it is kind of rare today. |
Why? Because buildings are so radically different today then they were 30 years ago? Each building is individual and has an individual time frame, so relax. It's going to be built, the tower is progressing full speed ahead, and the cladding will go up when the cladding will go up.
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Looks like some insane weather moved through the city yesterday. Fortunately it looks like all is well at the site: http://www.panynj.gov/wtcprogress/live-camera.html
Liking the new viewing angle of the PA webcam... gives you a perspective on how big it's getting. They had to move the camera pretty far away to get a full shot of 1 WTC. |
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I know we're all getting tired of seeing the tower's skeleton and would love to see the glass tower finally take shape, but geez.... patience, people, patience. Quote:
Also, take note that the original World Trade Center site was created in a process not too different than the process used to create public housing projects - eminent domain. The previous tenants on that site was Radio Row, a thriving electronics business and residential district. Of course, the PA NY/NJ couldn't quite make the claim that this was a "slum" that needed to be cleared in the name of progress and development, as had happened to many residents throughout the city whose homes were taken and razed for public housing and other projects. But the result was much the same, only prettier and more successful. |
Some helpful links:
If you want to discuss your preference for the new WTC, its here: http://forum.skyscraperpage.com/showthread.php?t=166333 If you want to revisit the Twin Towers, its here: http://forum.skyscraperpage.com/showthread.php?t=184976 And here: http://forum.skyscraperpage.com/showthread.php?t=115522 The future of possible new tallest in New York? It's here: http://forum.skyscraperpage.com/showthread.php?t=177742 Anything concerning the name (of all things) ...also here: http://forum.skyscraperpage.com/showthread.php?t=167071 The WTC Memorial...here: http://forum.skyscraperpage.com/showthread.php?t=158432 We aim to please, now everyone's happy....:tup: Tectonic Photo http://farm5.static.flickr.com/4131/...7d4b04aa_b.jpg |
yay tower cranes just jumped up again. now with in a week we will arrive to floor 39 and 40, finnaly making it to the 40s now.
but one thing. How are they goign to take the cranes down once the tower is toppled off? |
If they keep going at this rate, is it unfair to expect they will be past the projected 55, at the end of the year?
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