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Old February 8th, 2011, 03:49 PM   #321
oli83
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First part of the central spine is installed. Also two new parts of box girder have arrived in the eastern bathtub, and the last part of the short temporary access way above the northern arches has been removed and placed on a truck right now.

Lots of activity now that the weather conditions are a bit better! Will be an exciting spring!
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Old February 8th, 2011, 08:40 PM   #322
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Those are temporary supports, the "Spine Nodes" are coming soon.
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Old February 9th, 2011, 04:32 AM   #323
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It looks like the 18000 crane is moving some of the super columns tonight. Not vertically, but closer to their final placement.

* Correction, might be more girder box pieces.

Last edited by spectre000; February 9th, 2011 at 04:42 AM.
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Old February 17th, 2011, 11:33 PM   #324
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We might see some spine node installation this weekend and more east box girder. Too bad the weather won't stay this nice for long.
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Old February 18th, 2011, 08:20 PM   #325
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Great news!

They also removed some of the temporary supports around the south-eastern supercolumn and connected all four of the eastern temporary support towers to the subway box, although they don't really look like they can carry a lot of weight?!

Maybe Zen can explain how this will be done, do they finish the supercolumns first before they remove all this underpinning stuff? But then I wonder why they need the additional support towers, in the end the supercolumns should be able to carry all the load alone?

Thanks for clearing this up for me!
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Old February 18th, 2011, 11:17 PM   #326
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The temprary support towers are very similer to the towers for the tower cranes. They are bolted together rather than welded so they can be removed eaisly. They look like they could support 75 to 100 tons.

The temp supports are there to support the trusses that are to be the permanent support structure for the box.

The four super columns support the trusses and the east box girder so I'm guessing they will go in first.

Last edited by Zensteeldude; February 19th, 2011 at 12:06 AM.
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Old February 19th, 2011, 05:16 PM   #327
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Guess it's too windy for them to do much this weekend. You know it's really gusting out there when the Earthcam gets all blurry at times during daylight.
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Old February 19th, 2011, 07:42 PM   #328
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It's so windy that cam 1 is now facing southeast.

http://www.earthcam.com/usa/newyork/...zero/?cam=gzmp
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Old February 22nd, 2011, 01:01 AM   #329
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Maybe someone can quickly post a picture from the HD earthcam. (I don't know how to)

When you look at the center subway rail beneath the road/path that is in the middle of the whole wtc project. You see that they are installing massive steel pillars and sliders.
Is the function of these(white like) pillars/sliders to slid the whole steel box from the place it is now to the a place more distant from the HUB?


Secondly there are two massive concrete boxes at the foot of the road/path steel framing near to the pillars/sliders. My insight is that these are the foundations for the massive calitrave arches of the HUB or am i mistaking?
Maybe someone can conform that next to the two concrete boxes we can see on the ECam that there are two more near the slurry walls at the other end of the lot? So that the concrete base is already there and resting(stability) to support the arches within one to two year?
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Old February 22nd, 2011, 07:02 PM   #330
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Quote:
Originally Posted by GerFok View Post
Maybe someone can quickly post a picture from the HD earthcam. (I don't know how to)

When you look at the center subway rail beneath the road/path that is in the middle of the whole wtc project. You see that they are installing massive steel pillars and sliders.
Is the function of these(white like) pillars/sliders to slid the whole steel box from the place it is now to the a place more distant from the HUB?


Secondly there are two massive concrete boxes at the foot of the road/path steel framing near to the pillars/sliders. My insight is that these are the foundations for the massive calitrave arches of the HUB or am i mistaking?
Maybe someone can conform that next to the two concrete boxes we can see on the ECam that there are two more near the slurry walls at the other end of the lot? So that the concrete base is already there and resting(stability) to support the arches within one to two year?
The steel towers and trusses are to temporarily support the subway box while the permanent trusses are installed, and also to support the trusses themselves as they are assembled. The subway box is not being moved.

The 2 concrete foundations are for the supercolumns that will support the trusses and the subway box. There are 2 more on the other side of the box.

When the project is completed the entire space between them will be spanned without any intermediate support (almost 200 feet span!).
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Old February 23rd, 2011, 10:52 AM   #331
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Fantastic shots by 325ccr from WiredNewYork, shows that the tent over the supercolumns have been removed and the columns moved!

image hosted on flickr


image hosted on flickr


image hosted on flickr


image hosted on flickr


image hosted on flickr


image hosted on flickr
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Old February 23rd, 2011, 11:48 AM   #332
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after 10 years they are finally building something?
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Old February 23rd, 2011, 11:53 AM   #333
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I think you've got to check out Macy's in Herald Square and then Bloomingdales at E. 59th.
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Old February 24th, 2011, 07:13 PM   #334
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Quote:
Originally Posted by xutka View Post
after 10 years they are finally building something?
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Old February 25th, 2011, 09:29 AM   #335
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Some more detailed shots, by 325ccr (http://www.flickr.com/photos/vinschiano/):

image hosted on flickr


image hosted on flickr


image hosted on flickr


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Old February 26th, 2011, 04:50 AM   #336
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News...

Quote:
World Trade Center Mega-Station Will Cost $3.44 Billion
By Myles Tanzer, Fri., Feb. 25 2011

via WTC.com
​The World Trade Center Transportation Hub is set to be one of the City's most massive changes to New York's subway system. The building will have access to PATH trains, 13 subway lines and even the proposed JFK rail link. Sounds awesome, but how much will it cost taxpayers? The New York Post is reporting that the proposed cost will increase "by a staggering $180 million." (That's 40 million round-trip subway rides to work!) This brings the total cost to $3.44 billion.

The Post spoke to Steven Plate, the Port Authority's construction czar, who said "the sky-high white steel arches designed for the hub will cost $221 million." This expensive white steel (which is too "Miami Ceach" for our taste) is costing double what they originally thought it would. The new Transit Hub sounds incredible, but is the Port Authority spending too much money to meet our needs?

The Second Avenue Subway, the never-ending project from hell, came out with its own new budget last month. The final price tag is supposed to reach around $5.27 billion. So the Port Authority is spending a combined $8.71 billion dollars on two ginormous construction projects.

The G train "comes whenever it feels like it" and Brooklynites frequently have to wonder, "Is the L Train ****ed?" Shouldn't the Port Authority just make sure the trains that we already have run properly?
Quote:
Port Authority Approves $221M for Calatrava’s Winged Transit HubShare By Matt Dunning
Port Authority of NY & NJ
Port Authority officials unanimously approved a $221 million steel contract for Santiago Calatrava’s signature winged transit center building at the World Trade Center—more than double its original estimated cost—bringing the total cost of the sprawling train station to $3.44 billion.

The original, 2003 estimate for the entire project was $2.2 billion.

The manufacture and installation of the 200-foot-tall steel arches—which won’t actually begin to rise at the site until the fall of 2012—had originally been estimated to cost just under $100 million, the Authority’s director of World Trade Center Construction Steven Plate told the agency’s Board of Commissioners on Feb. 25. Like the tower at 1 World Trade Center before it, Plate said NYPD security requirements, including additional steel members, were the main culprit for the inflated cost. Despite the overrun, Plate called the contract’s award “a major milestone.”

“By awarding this contract, the oculus is becoming a reality of the vision put forth by this board,” Plate said, adding that he believed another $25-$30 million for fireproofing would need to be spent.

The contract was awarded to New-Jersey based Skanska Koch, which already holds a $542 million contract for the hub’s underground superstructure on the west side of the World Trade Center site. Plate said having a contractor with previous experience with Calatrava’s design, like Skanska, attached to the above-ground construction should help to minimize future cost increases for the project.

“We find that the ones who know Calatrava, know how to deal with him and get in his head are much more effective,” Plate said. “The risk goes up tremendously if you have someone trying to learn and understand him, you see the disruption.”

Some Port Authority commissioners bristled at the idea of turning over the additional money—given the additional $1.2 billion cost of the project—but finally approved the spending request.

“I always thought that the hub was the iconic structure of the whole development,” Port Authority commissioner David Steiner said. “I think the money is well worth it. That project has to go ahead, and we’re going to have to find a way to save the money somewhere else.”

Plate said the Authority would use some of the $600 in contingency funds built into the project’s existing budget to absorb some of cost overruns on the hub.

The Port Authority Executive Director Christopher Ward said that despite the overrun, he was generally pleased with the way the project’s costs have been managed.

“For something of this size and immensity, we’re actually tracking very well against what [the Authority estimated] the cost of this project would be,” Ward said.

In his weekly radio address, Mayor Michael Bloomberg agreed that the cost increase—about 5.5 percent—was relatively minor given the size of the project’s overall budget.

“That’s not bad forecasting,” Bloomberg said. “You’re better off underestimating, forcing people to watch the pennies. The trouble, then, when you have to raise it because things beyond your control.”
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Old February 26th, 2011, 06:12 AM   #337
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Might be getting ready to place a piece of box girder:

[IMG]http://i52.************/aorrld.png[/IMG]
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Old February 26th, 2011, 03:42 PM   #338
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Lots happening this morning. More of the box girder is in place, more of the white beams are going in, and possible work on the center spine. They probably have a lot of time to make up due snow, wind, and rain. Are the white beams temporary supports, or are they part of the permanent trusses?


[IMG]http://i52.************/nmn3g4.jpg[/IMG]

Last edited by Swiddle; February 26th, 2011 at 03:58 PM.
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Old February 26th, 2011, 05:35 PM   #339
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Does anyone have a better diagram of the truss system for the #1 subway box? (Here they are calling it an "arch scheme", with the original plan having called for a "truss scheme".)

[IMG]http://i54.************/fvi4bd.png[/IMG]
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Old February 27th, 2011, 01:30 AM   #340
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I have found a print that I can post online, with some editing, that I think will show the truss more clearly.
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