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Old January 17th, 2012, 01:20 PM   #2901
Jay
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Quote:
Originally Posted by HK999 View Post
After the new WTC is finished, no supertalls are likely to rise there anymore for a long time. The Hudosn Yards and Manhattan West Side are the future sites where 400m+ and even 500m+ towers will rise. So all I care is that they complete the WTC this decade.

Btw nice pics, 4WTC looks so much taller now with the setback floors going up.

No supertalls will rise where? NYC? Central park adjecent and the west side should promise a good amount of massive 3-400 meter buildings. There are still other places in the city where large towers could be built in the future as well. It may not be for a while but I NYC's supertall era is just starting, not ending, even after the WTC is finished.
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Old January 17th, 2012, 01:40 PM   #2902
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The only thing that's an epic fail is your whiny childish attitude.
Why do you have to attack me? I only stated my opinion. If you want to dogmatically love everything about the new WTC you have a right for it but please respect other's opinions too
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Old January 17th, 2012, 01:52 PM   #2903
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Quote:
Originally Posted by Jay View Post
No supertalls will rise where? NYC? Central park adjecent and the west side should promise a good amount of massive 3-400 meter buildings. There are still other places in the city where large towers could be built in the future as well. It may not be for a while but I NYC's supertall era is just starting, not ending, even after the WTC is finished.
That's what I meant lol. I only said, no supertalls are likely to rise at the WTC site in the near future...
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Old January 17th, 2012, 04:29 PM   #2904
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Originally Posted by Chapelo View Post
I'd like to think they would have repaired 1WTC by deconstructing everything from the impact zone up, then reconstructing it with more modern methods (ie: reinforced concrete core, better fireproofing, better flooring system using I-Beams instead of the thin-trusses used, larger windows, etc.) In the case of the Twins, it would have been more economical to repair the existing building, then rebuild the South Tower along those lines, with the memorial possibly taking up space occupied by buildings 4, 5. Plus, most New Yorkers would have demanded that the other tower be rebuilt.

But I'm not a structural engineer, so I honestly don't know what would have happened. Below the impact zones, the Towers were relatively intact, so it would have made sense to repair them.
I think that if only the South Tower had collapsed it would have been an even worse aftermath scenario (of course, hundreds of lives would have been saved, but I'm talking about the buildings). Having in mind what happened to the Deutsche Bank building and how long it took to demolish it, imagine the North Tower, standing much closer from 2WTC that the Deutsche Bank building stood, already damaged by the plane crash and then being directly struck by heavy debris and the dust cloud. It's not easy to see but there are some pics taken moments after 2WTC collapse where 1WTC facade appears to be really damaged.

I can't imagine how long it would take to repair all the damage to the lower buildings, the mall, etc, and then repair a 110 story tower with the top 15 floors burned, 85 floors or so full of debris and the bottom 10 floors badly damaged. Maybe years would go on until it would be decided if the complex should be deconstructed of repaired as it was. But then, how long it would take to clean and reinforce the building?

Back on topic... 4 WTC is getting seriously huge :O
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Old January 17th, 2012, 05:21 PM   #2905
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I refuse to feed a troll like Valkyre. Instead I'll bring this back on topic. I just found an awesome webcam for both towers 1 and 4 at EarthCam. Here is their latest pic

[IMG]http://i42.************/vxf5va.png[/IMG]
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Old January 17th, 2012, 05:26 PM   #2906
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Old January 17th, 2012, 07:37 PM   #2907
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Awesome pics
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Old January 17th, 2012, 10:35 PM   #2908
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Could you plz stay on topic? This thread is about 4WTC, not about your opinions about me
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Old January 17th, 2012, 11:05 PM   #2909
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I didn't know the builders are allowed to walk on the steel without safety ropes.
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Old January 17th, 2012, 11:11 PM   #2910
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I suppose you haven't been on a construction site before, have you?
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Old January 17th, 2012, 11:39 PM   #2911
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Quote:
Originally Posted by tim1807 View Post
I didn't know the builders are allowed to walk on the steel without safety ropes.
I guess that in many situations when working on the top beams it is kinda hard to find any place to which a rope could be tied
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Old January 17th, 2012, 11:45 PM   #2912
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Wow, the setback floors are already pretty tall.
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Old January 18th, 2012, 01:52 AM   #2913
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Quote:
Originally Posted by tim1807 View Post
I didn't know the builders are allowed to walk on the steel without safety ropes.
ironworkers work under OSHA Subpart 'R' which is specially written for steel erection.

basically, no worker should be exposed to a fall greater than 30 feet without using a fall protection system (lanyard, retractable, static line).

no worker should be exposed to fall risk greater than 30 feet. so effectively, every other floor the deck must be spread out in place to create another 'working deck'

the only guys that are supposed to be allowed to work without fall protection are the two connectors who physically put the steel in place.

the rest of the raising gang should be tied off at 15 feet and most of the detailing gangs are now required (asked) to tie off at 6 feet.

Last edited by thejacko5; January 18th, 2012 at 01:59 AM.
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Old January 18th, 2012, 02:21 AM   #2914
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I suppose you haven't been on a construction site before, have you?
believe it or not, the acceptance of 6 foot fall 100% tie off is pretty wide right now, even in the city.

all of the major GC's/CM's require/enforce it (especially Turner and Bovis).

the only real contentious area is with the ironworkers because Subpart R was written specifically for their work and doing 100% tie really limits their abilities.
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Old January 18th, 2012, 01:51 PM   #2915
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Time for a daily Earthcam update. The only new thing I see there (though I might be wrong) is a new horizontal beam connecting the perimeter columns on the one setback side. I know these beams had a special name but I forgot it, LOL

[IMG]http://i40.************/iqzxnp.png[/IMG]
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Old January 18th, 2012, 03:09 PM   #2916
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they are building another TG crane on this building?

seems strange give the fact that both of the existing ones can cover the radius.
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Old January 18th, 2012, 03:09 PM   #2917
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Originally Posted by Kanto View Post
Time for a daily Earthcam update. The only new thing I see there (though I might be wrong) is a new horizontal beam connecting the perimeter columns on the one setback side. I know these beams had a special name but I forgot it, LOL
spandrel beam
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Old January 18th, 2012, 03:29 PM   #2918
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Thanks
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Old January 18th, 2012, 03:57 PM   #2919
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Originally Posted by thejacko5 View Post
they are building another TG crane on this building?

seems strange give the fact that both of the existing ones can cover the radius.
I was also wondering bout this since there is even less work on the remaining floors due to the setback.

Maybe they need to have one which is not climbing still higher up the setback floors and one of the other two cranes is coming down soon?
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Old January 18th, 2012, 04:06 PM   #2920
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I was also wondering bout this since there is even less work on the remaining floors due to the setback.

Maybe they need to have one which is not climbing still higher up the setback floors and one of the other two cranes is coming down soon?
very possible.

DCM uses the 'basket system' for mounting their cranes, and that usually happens inside the core of the building. If the core is narrowing after the setback, they simply might not have the space to spare for the second basket crane.
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