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Old August 13th, 2009, 02:34 PM   #9801
Desparye
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Something of interest to a comment mentioned above, CNN just mentioned the jumbo column's installation just a few moments ago. Seems that this is getting the publicity it needs.

And thanks for the update, yrades.
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Old August 13th, 2009, 04:12 PM   #9802
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2nd column being lowered into place right now.
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Old August 13th, 2009, 04:17 PM   #9803
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70 tonne for just one beam.
the whole tower must weigh millions
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Old August 13th, 2009, 04:23 PM   #9804
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Quote:
Originally Posted by buildmilehightower View Post
70 tonne for just one beam.
the whole tower must weigh millions
Both Twin Towers combined weighed about 1 million tonnes?
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Old August 13th, 2009, 04:26 PM   #9805
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2nd column almost in place.
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Old August 13th, 2009, 04:27 PM   #9806
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Quote:
Originally Posted by Northerly View Post
Both Twin Towers combined weighed about 1 million tonnes?
Yes indeed.

And to the original person who guessed, I wouldn't put it to QUITE that weight, but probably pretty close considering the concrete being used and whatnot.
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Old August 13th, 2009, 04:30 PM   #9807
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Quote:
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2nd column almost in place.
..wow. I must be tired considering I was shocked to see the complete outline of the tower outside of the core. Anyway, thanks for the pic.
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Old August 13th, 2009, 05:28 PM   #9808
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It will be interesting to see how they add the tilted corner columns, cant wait to see that!
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Old August 13th, 2009, 05:53 PM   #9809
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Old August 13th, 2009, 05:54 PM   #9810
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Originally Posted by adam-albany View Post
It's also because the have no access to drive a cherry picker up to work from, and I'm not sure they make any that could go to the top of a 60-foot beam anyway.
Funny, they're using a cherry picker right now to get to the top of the new column. There are plenty of cherry pickers that can reach 60'+ (i've seen them up to 110 feet).

The platform is for when they atach all the beams that meet at the top there. They need a bunch of workers there, more than one or two cherry pickers can hold.

BTW if you want to see some really elaborate scaffolding, check out the Tokyo Sky Tree thread.
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Old August 13th, 2009, 05:58 PM   #9811
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It'll be the new NY symbol for sure
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Old August 13th, 2009, 06:11 PM   #9812
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It'll be the new NY symbol for sure
The whole complex will be without a doubt. Still hoping 2WTC and 3WTC make it. :l

Sorry, went off topic with that. I'm excited to see how it looks at the end of the day.
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Old August 13th, 2009, 06:45 PM   #9813
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Originally Posted by Zensteeldude View Post
The PA has nothing to do with it, DCM signed the contract over a year ago ($276 million), Tower One is bought and paid for.
? Who do you think paid the $276 million? The PA, if they were diligent with the public's money they would have reviewed all aspects of the project to ensure it was being done in the most efficient way possible.
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Would it helped if I said over 200 bolts, each one over 5 pounds is going into those connections above the work platforms, and as I said, I believe the connections are also welded, so welders need them too.
Not really, I've managed many projects just as complex that involved hazardous chemicals so they were even more critical and there's still seems like a significant overkill. Also I'd be extremely surprised if they did this for every column, for some reason I'm thinking they just did it on the first one.
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I have seen smiler platforms during bridge erection. I believe it's cause they are past the "3 floors" rule.
There's no such rule, any work done above 6 feet needs fall protection, no matter how much higher and there are strict regulations covering what kind of fall protection is required. You certainly don't see platforms like that built while very high steel is being erected, so it looks very strange here. Besides at this site manlifts and crane baskets would be very effective alternatives.

Special platforms are quite often used on bridges but they're a different matter entirely due to accessibility issues.
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Old August 13th, 2009, 07:06 PM   #9814
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GreenwichBoy:

Why is that tall steal install inside of the building.. or are they bout to move it ontop of one of the outside installed steals already??
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Old August 13th, 2009, 07:13 PM   #9815
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I think this is where the top of the new column is.

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Old August 13th, 2009, 07:15 PM   #9816
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You are correct.
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Old August 13th, 2009, 07:31 PM   #9817
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Why is that tall steal install inside of the building.. or are they bout to move it ontop of one of the outside installed steals already??
Because the beam was only being prepared to be put up at the time the picture was taken.
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Old August 13th, 2009, 07:38 PM   #9818
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Quote:
Originally Posted by uakoops View Post
Funny, they're using a cherry picker right now to get to the top of the new column. There are plenty of cherry pickers that can reach 60'+ (i've seen them up to 110 feet).

The platform is for when they atach all the beams that meet at the top there. They need a bunch of workers there, more than one or two cherry pickers can hold.
Thanks for the correction and the information.
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Old August 13th, 2009, 07:52 PM   #9819
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From wtcprogress.com:
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Old August 13th, 2009, 08:16 PM   #9820
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Quote:
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Why is that tall steal install inside of the building.. or are they bout to move it ontop of one of the outside installed steals already??
That's right folks, contrary to popular belief, there IS steel inside a building
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