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Old March 25th, 2012, 08:37 PM   #861
MusicMan84
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Quote:
Originally Posted by Otie View Post
Oops, should have cleared it out. The below grade structure will be erected by DCM using the FAVCO crane, while the Oculus building (the structure above grade) will be in charge of Skanska, using a different crane that will arrive by fall-winter and positoned outside the Hall's footprint at ground level. The ribs will not be self-supporting during construction, meaning that they will be temporaly guyed. Pretty interesting stuff will go on in the upcoming months
Looking forward to watching it all happen!
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Old March 25th, 2012, 10:16 PM   #862
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That is interesting indeed. But do you think a tower crane which is even able to move is capable of lifting all huge columns? Probably some assistance will be needed for the biggest ones..
It shouldn't be a problem at all. Those really are not that big in comparison to some of the other beams in the project. They're relatively long but since they don't really support anything they don't have to be that strong so they will be relatively light.
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Old March 28th, 2012, 03:09 AM   #863
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Is something missing?

Never mind.

Last edited by SidewalkSuper; March 28th, 2012 at 03:12 AM. Reason: I misread the EarthCam image. Doh!
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Old March 30th, 2012, 03:54 AM   #864
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Does anyone know when will be remove all the provisional H beams that are over the subway line ? because they have almost reach that zone and I think that canīt take so much longer to clear that zone.
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Old March 31st, 2012, 05:12 PM   #865
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The crane near the street is being dismantled this morning so that it can be moved to the sliding crane base.
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Old April 2nd, 2012, 04:54 AM   #866
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It appears they've worked nonstop day and night this weekend on the crane and are almost finished. I noticed they greatly reduced the length of the boom and replaced the yellow end section. Will this crane carry loads while sliding on the rails? That is, will it slide to the east, pick a load (say, a rib section) off a trailer, then slide west (while carrying the load) and place/install the load?

Or, instead, will it slide to the east, pick up a load and (without sliding) drop it at a staging area. Then (perhaps at a latter date) slide west (but still within range of the staging area), and pick the load back up to install (or move to another staging area)?

Last edited by Swiddle; April 2nd, 2012 at 05:00 AM.
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Old April 2nd, 2012, 01:47 PM   #867
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That will be interesting indeed. The crane construct doesn't look very stable to me, but maybe the sliding system will be attached firmer to the hubs structure to enable the crane to slide with its loads.. At least the sliding system allows the crane to operate its lifts close to the crane's tower.

Nice snapshot from Sherpa, WNY:

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Old April 2nd, 2012, 04:06 PM   #868
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Quote:
Originally Posted by elianzoom View Post
Does anyone know when will be remove all the provisional H beams that are over the subway line ? because they have almost reach that zone and I think that canīt take so much longer to clear that zone.
Speaking of that, they started to clear all all the equipment/wood that was parked on H beams
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Old April 2nd, 2012, 06:05 PM   #869
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And the generators have disappeared. Hopefully that means they have finally completed all the welding.
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Old April 3rd, 2012, 01:15 AM   #870
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And the generators have disappeared. Hopefully that means they have finally completed all the welding.
the welding will never end.


ever.
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Old April 4th, 2012, 06:58 PM   #871
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looks from the KPI TV web cam that crane is slikind around already :-)

When will the beams go up on the south side?

Now that WTC 1 and 4 are close to topping out this may be the most exciting part of the WTC project over the next year. Can't wait to see it take shape.
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Old April 4th, 2012, 09:30 PM   #872
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DCM will first erect the eastern section of the Transit Hall's below-grade structure, while Sorbara completes the concrete work at the wester section.
Meanwhile at the PATH Hall, workers have already started to transfer the loads to permanent columns, temporary supports are no longer needed.

From PA's public newsletter
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Old April 4th, 2012, 10:44 PM   #873
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Excellent find. We can see from that photo that the mystery arches did get installed under the box girder.
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Old April 4th, 2012, 11:44 PM   #874
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Finally a good pic of the supercolumn (south one)

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Old April 5th, 2012, 01:36 AM   #875
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this will truly be the grand central of lower manhattan
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Old April 5th, 2012, 03:46 AM   #876
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Quote:
Originally Posted by Otie View Post
DCM will first erect the eastern section of the Transit Hall's below-grade structure, while Sorbara completes the concrete work at the wester section.
Meanwhile at the PATH Hall, workers have already started to transfer the loads to permanent columns, temporary supports are no longer needed.

From PA's public newsletter
Otie, thanks for the info but you are going way over my head. Are you saying they have to do more work before they can put the beams up on the south side that they have on the north side? Also, that is a great and interesting picture but where is it relative to the transit hub? Is it directly beneath the hub and the work we presently see with the sliding crane is on top of it?

I'm going to need some help and probably diagrams or pictures with arrows on it to really understand this. I'll be very grateful to anyone who can help.
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Old April 5th, 2012, 03:56 AM   #877
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Quote:
Originally Posted by 600West218 View Post
I'm going to need some help and probably diagrams or pictures with arrows on it to really understand this. I'll be very grateful to anyone who can help.
Quote:
Originally Posted by oli83 View Post
I believe what Otie has posted in the recent picture shows progress in the PATH Hall - which is noted as #3 above. This is happening adjacent to the memorial pool, underneath where they are finishing the latest section of the memorial grounds.
(From the cams, you see concrete with square holes in it [for trees] next to the memorial pavilion.) This is underneath all of that.

Not underneath what we are seeing with the sliding crane. That is closer to numbers 6,7, and 10 - or the transit hall.

Hope that helps - someone correct me if I am wrong.

Last edited by MusicMan84; April 5th, 2012 at 04:06 AM.
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Old April 5th, 2012, 04:45 AM   #878
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Yup, you got it. This video from Rising should help you understand how's everything organized.



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Last edited by Otie; April 5th, 2012 at 05:04 AM.
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Old April 5th, 2012, 05:53 AM   #879
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Wow, thanks so much for all that info. This has helped my understanding tremendously.

Given this, a lot more of this project has been done than is apparent from the cams. Much of the work is below grade and much has already been done. If fact, the PATH part is almost all done from a structural point of view, no? What is really missing and makes it seem the project is far from completion are the soaring ribs of the main hall.

BTW, I've been wondering for a while what those square holes were - thanks for clarifying.
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Old April 5th, 2012, 06:07 AM   #880
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For some time, I have been trying to figure out how commuters are going to access the platform for the southbound subway trains at the Transportation Hub. Access to the platform for the northbound subway is obvious, but access to the platform for the southbound trains seems non-existent, if not impossible to construct.

Does anyone have any knowledge or insights on this?
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