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Old November 1st, 2012, 07:55 PM   #4801
desertpunk
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3 weeks to get a new crane up so a month's delay for One57

57th Street Residents, Workers Can Return Home by Monday

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Today's dangling crane report from Midtown behemoth One57: the crane is still hanging over 57th Street after its collapse on Monday. The good news, though, is that area residents and employees evacuated because of the incident should be able to return by Monday, according to the Post. City engineers have deemed the crane's ties to the building secure, and workers "should be able 'to tie the boom to the building'" tomorrow. Then a new crane will have to be built to get the old one down. Onward.

UPDATE: Reuters has a real-time crane cam for anyone who wants to keep a closer eye on the situation.
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Old November 1st, 2012, 09:04 PM   #4802
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Quote:
Originally Posted by thejacko5 View Post
the wind was very much north-northeasterly during the heights of the storm. I was outside in it.
You mean coming from the north-northeast, right? That's why the boom should have pointed in the other direction. This is how it was explained in the aforementioned article:

"Weather-vaning a tower crane involves releasing the unit's swing brake so the jib can move without restriction in the wind. Then, as wind pushes against the jib, the jib rotates until it is pointing downwind. The counterweight points upwind, helping to balance the vertical tower structure and provide gust resistance."
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Old November 1st, 2012, 09:24 PM   #4803
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Here's a close-up I snapped today:

Link: (if it doesn't show up)
http://www.mejuba.com/albums/CityZen.../show/original
That's a good close up. You can even see people on the tower looking at the crane.

The crane looks like a tangled mess. They'll probably have to cut the boom into pieces before it can be removed.

Last edited by Eric Offereins; November 2nd, 2012 at 02:56 PM.
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Old November 2nd, 2012, 03:17 AM   #4804
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Before the disaster, I wonder how much work this crane had left to perform? It would be something if it had been scheduled to come down soon, and now a whole new crane (of equal size?) has to be erected to take it down and finish a little bit of work. I know these tower cranes aren't typically used for cladding, and this building is topped out.
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Old November 2nd, 2012, 05:00 AM   #4805
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Before the disaster, I wonder how much work this crane had left to perform? It would be something if it had been scheduled to come down soon, and now a whole new crane (of equal size?) has to be erected to take it down and finish a little bit of work. I know these tower cranes aren't typically used for cladding, and this building is topped out.
There's still some mechanical equipment to raise to the top levels. There are also still two concrete buckets on the street so maybe there was some pouring left to do. Either way, I hope work will continue apace inside the tower while they deal with replacing the crane.
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Old November 2nd, 2012, 07:29 AM   #4806
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Well the Tower is already topped out so who cares if the crane replacement will take about a month. The Tower looks great already so we'll get things back up and running shortly.
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Old November 2nd, 2012, 08:30 AM   #4807
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Looks like we might have to wait a few weeks, but good to know most of the building, especially the curtain walls and glass, held up.
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Old November 2nd, 2012, 02:32 PM   #4808
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the question you need to ask is a simple one, and it goes for all projects.

Is delayed task on or off the critical path of the project?

Consider all the things that are going on, the things that have to be completed before this building is done and you will be able to better answer that question.

I do not think the this crane is on the critical path right now, but that could change depending how long this takes. It is definitely a major project milestone to get that thing done and out of there.
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Old November 2nd, 2012, 02:53 PM   #4809
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ok all. i have a great photo here from on site.

note the strap in the front that is holding the slewing gear. this crane was either stopped from slewing in one direction or this strap fell out of the sky and jammed the slewing mechanism

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Old November 2nd, 2012, 03:17 PM   #4810
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Seeing that pic makes it kinda hard for me to believe that the damaged part is not in danger of falling down. I hope they'll keep that street closed.
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Old November 2nd, 2012, 03:18 PM   #4811
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i am actually relieved by that picture.
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Old November 2nd, 2012, 03:35 PM   #4812
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i am actually relieved by that picture.
Me too. Bolts are fine. That must have been crazy force in them to keep whole boom connected when it flipped backwards.
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Old November 2nd, 2012, 04:19 PM   #4813
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I dunno, but didn't the vast plastic bending cause damage to the steel structure?
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Old November 2nd, 2012, 04:25 PM   #4814
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steel bends, thats why it is a beautiful thing.
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Old November 2nd, 2012, 06:08 PM   #4815
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Beautiful until it bends and breaks.
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Old November 2nd, 2012, 06:36 PM   #4816
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That crane looks like a limp pecker.
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Old November 2nd, 2012, 06:55 PM   #4817
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Quote:
Originally Posted by Hed_Kandi View Post
That crane looks like a limp pecker

Quote:
Originally Posted by judygray490 View Post
That crane looks like a limp pecker

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Old November 2nd, 2012, 07:43 PM   #4818
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Beautiful until it bends and breaks.
its not a clothes hangar.

its incredibly high grade steel.
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Old November 2nd, 2012, 07:47 PM   #4819
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its not a clothes hangar.

its incredibly high grade steel.
Yeah, watching the video of an accident it's pretty obvious what this steel went through and how strong it is.
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Old November 2nd, 2012, 07:54 PM   #4820
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all the damage you see is bending and popped welds. which are really small fillet welds to begin with. They are not even PJP or CJP welds.
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