NEW YORK | One World Trade Center | 1,776' Pinnacle / 1,373' Roof | 108 FLOORS - Page 401

NYCLuver · #**8001** Posted **Mar 17, 2010, 12:40 AM**

March 16th, 2010

2-TOWERS · #**8002** Posted **Mar 17, 2010, 2:18 AM**

i love it

OneWorldTradeCenter · #**8003** Posted **Mar 17, 2010, 7:29 AM**

I love it, too. The tower looks amazing. And the concrete core looks very massive!

kinggober · #**8004** Posted **Mar 17, 2010, 1:48 PM**

Based on the size of the people in this image it looks like they steel that's being installed is for 4 office floors not 2. Maybe it's just my perspective, but it looks like the new beams are 30 feet apart.

NYguy · #**8005** Posted **Mar 17, 2010, 1:51 PM**

Quote:

Originally Posted by kinggober

Based on the size of the people in this image it looks like they steel that's being installed is for 4 office floors not 2. Maybe it's just my perspective, but it looks like the new beams are 30 feet apart.

There's no way that's 30 feet. Maybe the angle is throwing you off.

evanmack · #**8006** Posted **Mar 17, 2010, 2:11 PM**

Are those even people??? ^^^

OneWorldTradeCenter · #**8007** Posted **Mar 17, 2010, 2:14 PM**

Quote:

Originally Posted by evanmack

Are those even people??? ^^^

Yes, I think ironworkers

sbarn · #**8008** Posted **Mar 17, 2010, 3:03 PM**

Wow this thing is going to be massive.

canadate · #**8009** Posted **Mar 17, 2010, 3:30 PM**

Quote:

Originally Posted by kinggober

Based on the size of the people in this image it looks like they steel that's being installed is for 4 office floors not 2. Maybe it's just my perspective, but it looks like the new beams are 30 feet apart.

Probably high ceilings.

OneWorldTradeCenter · #**8010** Posted **Mar 17, 2010, 3:42 PM**

Wow, I wonder how much pressure is on that steel beams (the 24 steel columbs in the lobby). How many tons of material! And they will put several more floors (about 80) onto it!

MadGnome · #**8011** Posted **Mar 17, 2010, 4:30 PM**

Limiting factor might be having to pour the floors one at a time and needing to let one cure for so long before they can pour the next. And eventually, the core will be as far below the steel as it can be and that will limit the vertical speed. I'm about 30 years out of date concrete wise. I'm not sure how long those three foot thick walls need to cure before they can add to them, or if the floor have temporary supports while they're being poured.

canadate · #**8012** Posted **Mar 17, 2010, 4:57 PM**

A little old..took these about 2 weeks ago. Sorry I'm posting them so late. I was at the site yesterday but it was dark and I didn't have my tripod on me. I did scope out some new views though so stay tuned for that and night shots within the next month or so.

hunser · #**8013** Posted **Mar 17, 2010, 6:52 PM**

those are some fine shots, i especially like the first four- very rare angle!

brenGT2 · #**8014** Posted **Mar 17, 2010, 7:13 PM**

Just imagine the view in that third shot in a few years! It will be extremely prominent from that angle.

Zensteeldude · #**8015** Posted **Mar 17, 2010, 10:25 PM**

Quote:

Originally Posted by uakoops

Is that just the towers or does it include all the underground space as well? (Memorial, parking, VSC etc.)

Just office and retail, no "support" space is included. (most of the retail is below grade, as it was in the origonal WTC)

Zensteeldude · #**8016** Posted **Mar 17, 2010, 10:33 PM**

Quote:

Originally Posted by kinggober

Based on the size of the people in this image it looks like they steel that's being installed is for 4 office floors not 2. Maybe it's just my perspective, but it looks like the new beams are 30 feet apart.

The new beams are 13' 4" apart, same spacing as the girt tubes on the base.

Quote:

Originally Posted by OneWorldTradeCenter

Wow, I wonder how much pressure is on that steel beams (the 24 steel Columbus in the lobby). How many tons of material! And they will put several more floors (about 80) onto it!

The structural steel is about 45,000 tons, concrete weighs 140 pounds per cubic foot. The floor slabs average 30,000 square feet (including the core.) Here it gets a little tricky, some slabs are 6", some are 8" and some are 12" thick. About 400 tons for the spire, another 6,000 tons for the cooling towers and comunications rings. Let's just say ALOT!

Now I am going to blow your mind, under max wind load the windward columns well be under tension, alot of tension. This is where the rock anchors in the foundation come into play.

Quote:

Originally Posted by MadGnome

Limiting factor might be having to pour the floors one at a time and needing to let one cure for so long before they can pour the next. And eventually, the core will be as far below the steel as it can be and that will limit the vertical speed. I'm about 30 years out of date concrete wise. I'm not sure how long those three foot thick walls need to cure before they can add to them, or if the floor have temporary supports while they're being poured.

If they sequence it right ( and I'm sure they well) the level below cures as they ready the next floor for pouring. Same with the core.