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Old October 30th, 2012, 04:16 AM   #4721
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Amazing.
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Old October 30th, 2012, 05:52 AM   #4722
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yep, I fully expected the crane collapse conversation. they only mentioned a 75 story luxary tower under construction in midtown, then I thought "one57"
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Old October 30th, 2012, 06:37 AM   #4723
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OMG...
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Old October 30th, 2012, 07:39 AM   #4724
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The news anchors on MSNBC are so clueless talking about this building. Bartiromo called it a highrise, she probably never heard of the word supertall before. The old guy didn't even realize it was topped-out. If they don't know anything about a supertall that is this far into construction just think about how clueless people are about 225 West 57th Street.
You can't expect civillians to be fully aware.
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Old October 30th, 2012, 08:18 AM   #4725
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Oh crap, how do they get it down?
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Old October 30th, 2012, 08:58 AM   #4726
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image hosted on flickr

Crane Falling 57 Street - Hurricane Sandy NYC by Adrian Cabrero (Mustagrapho), on Flickr

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Crane Falling 57 Street - Hurricane Sandy NYC by Adrian Cabrero (Mustagrapho), on Flickr
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Old October 30th, 2012, 08:59 AM   #4727
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^crane helicopter? Just my guess
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Old October 30th, 2012, 10:29 AM   #4728
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I thought cranes have to be in a certain position with the boom in the downwind direction to prevent this from happening?
The boom was simply blown over.
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Old October 30th, 2012, 12:15 PM   #4729
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That is one nasty video
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Old October 30th, 2012, 12:57 PM   #4730
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that crane should have been one section higher than it was! minimum out of service jib position is usually about 65 degrees from horizontal. this is from the manufacturers and is calculated to ensure that the crane will weather vane 180 degrees before the jib blows over backwards. but it is calculated in unobstructed wind conditions. one57's roof is obstructing the wind flow to the lower jib and cab area.
also, luffing cranes are not fool proof, you gotta be careful with them in the wind. if there's a hurricane coming, no way they should be out of service at 65 degrees as one57 appears to have been. i'd go maximum 40 degrees. was this not possible because the crane was too low?
when is this industry going to wake up the the inherent design flaw in luffing cranes? they can and do get blown over backwards. having a crane that relies on gravity to keep the jib in position is not good enough.
i can forgive the collapses on taipei 101, earthquakes can be rough , but wind should not ever bring one down.

lastly, position of that crane now will be a nightmare to dismantle. the crew will deserve medals when it's done.

Last edited by beaky; November 1st, 2012 at 11:30 AM.
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Old October 30th, 2012, 01:32 PM   #4731
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Old October 30th, 2012, 01:47 PM   #4732
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Man, that's gonna be a bitch to remove. It would be more dangerous but potentially less complicated if the boom simply fell to the street. My guess is they'll cut it up and take it away in chunks via helicopter. Either way, this will probably end up being a big hold up to construction as a whole.

In the end though, people should absolutely stay at least one full block away from this building.
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Old October 30th, 2012, 02:13 PM   #4733
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Quote:
Originally Posted by Uaarkson View Post
Man, that's gonna be a bitch to remove. It would be more dangerous but potentially less complicated if the boom simply fell to the street. My guess is they'll cut it up and take it away in chunks via helicopter. Either way, this will probably end up being a big hold up to construction as a whole.

In the end though, people should absolutely stay at least one full block away from this building.
Yeah.

1. waiting for storm to pass.
2. Inspection of the building
3. Inspection of the crane
4. Erecting another crane up
5. Inspection of the new one
6. Attempts to bring this one down
7. Inspection of the building
8. Resuming.

This will be long process and winter is yet ahead of us. More strong winds, low temperatures, possible snow.

This will seriously be a bitch to do.
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Old October 30th, 2012, 04:46 PM   #4734
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DinoVabec Mount Derriсk on the roof and lower the first crane.

http://www.liebherr.com/CC/en-GB/reg...measure-metric
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Old October 30th, 2012, 04:51 PM   #4735
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Looks like one of those no smoking warnings on cigarette packages
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Old October 30th, 2012, 05:14 PM   #4736
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Quote:
Originally Posted by GoR_Vrn View Post
DinoVabec Mount Derriсk on the roof and lower the first crane.

http://www.liebherr.com/CC/en-GB/reg...measure-metric
That will do the trick if they can erect it on the roof without the steelwork getting in the way
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Old October 30th, 2012, 08:31 PM   #4737
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Mayor Bloomberg: Crane Is Stable

Quote:
The broken crane at Extell Development’s One57 development, dangling about 1,000 feet above West 57th Street, is likely to remain an enduring image of Hurricane Sandy, which has left the East Coast battered. But the more immediate concern is getting the crane down from its perch — atop the under-construction luxury condominium that the New York Times billed as a “billionaires club.”

During an 11 a.m. press conference, Mayor Michael Bloomberg said that the New York City Department of Buildings has determined that the crane is currently stable. He said the there would be no attempt to secure the crane until winds die down, and that it would be up to the contracting company to figure out how to get another crane 90 stories above street level.

That’s because the key to rescuing the broken crane might just be another crane. How long that might take is not yet known.

Pinnacle Industries is the operator of the crane and the Department of Buildings has on-record complaints of problems with the crane. Curbed reported that there was an August stop-work order for a defective hoist and hydraulic leaks. A spokesperson for construction manager Bovis Lend Lease told the Times that the crane was last inspected on Friday.

Donald Trump has tweeted his own thoughts about the crane collapse. “I saw from my window just before accident that the crane was not properly anchored for the storm,” he posted this morning. Yesterday, he tweeted, “All weights are on crane’s wrong side – very precarious below, move out!”

As reported yesterday, in the wake of the accident, Extell chief Gary Barnett told the New York Observer, “We’re doing everything we can, and hopefully no one is going to get hurt.”
Another expert, Jason Kenna of Heede Southeast believes that the crane can lower itself in a reverse top-climbing procedure until it reaches a point where other equipment can begin dismantling it.
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Old October 30th, 2012, 09:32 PM   #4738
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Quote:
Originally Posted by desertpunk View Post
[B]
Another expert, Jason Kenna of Heede Southeast believes that the crane can lower itself in a reverse top-climbing procedure until it reaches a point where other equipment can begin dismantling it.
That would be a best case scenario lets hope that can happen. Would certainly speed up the process.
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Old October 30th, 2012, 10:15 PM   #4739
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Couple of shots from around CPN that I took today (pardon the quality):



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Old October 30th, 2012, 10:23 PM   #4740
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Quote:
Originally Posted by beaky View Post
that crane should have been one section higher than it was! minimum out of service jib position is usually about 65 degrees from horizontal. this is from the manufacturers and is calculated to ensure that the crane will weather vane 180 degrees before the jib blows over backwards. but it is calculated in unobstructed wind conditions. one57's roof is obstructing the wind flow to the lower jib and cab area.
also, luffing cranes are not fool proof, you gotta be careful with them in the wind. if there's a hurricane coming, no way they should be out of service at 65 degrees as one57 appears to have been. i'd go maximum 40 degrees. was this not possible because the crane was too low?
when is this industry going to wake up the the inherent design flaw in luffing cranes? they can and do get blown over backwards. the little back stops to prevent the jib going over are not good enough, see post 4528. having a crane that relies on gravity to keep the jib in position is not good enough.
i can forgive the collapses on taipei 101, earthquakes can be rough , but wind should not ever bring one down.

lastly, position of that crane now will be a nightmare to dismantle. the crew will deserve medals when it's done.
beaky uk crane operator
Just watched the video and now I see exactly what you are talking about. Why was that thing at such an angle to begin with I'm a complete amatuer on these things but it does look like someone really screwed up.

Maybe when they left it they forgot that the initial winds would come from the North blowing towards the South. That is what happened and in the video we see the result.
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