Crane falls in NYC, makes a sound

5,701 Views | 29 Replies | Last: 8 yr ago by UnderoosAg
proc
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Okay Ag Engineers, knowledge us on what happened here.

http://uproxx.com/news/crane-collapses-lower-manhattan-death/2/
80s Guy
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It fell down and went boom
AliasMan02
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Crane failures are almost always installation errors, or from operating outside the equipment's load/reach envelope.
MasterAggie
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Okay Ag Engineers, knowledge us on what happened here.
Someone effed up.
AgLA06
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Crane failures are almost always installation errors, or from operating outside the equipment's load/reach envelope.


You're forgetting weather.

Wind and or ice accumulation might have been a cause based on the weather in the photos.
proc
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https://pbs.twimg.com/tweet_video/Cadmv9iWwAA0XUj.mp4
AliasMan02
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quote:
quote:
Crane failures are almost always installation errors, or from operating outside the equipment's load/reach envelope.


You're forgetting weather.


There's rarely a weather event that should topple a tower crane. You're talking about a 500 year event or more, probably. Maybe 100.

If you mean operating a crane in higher than allowed winds, then yes.
Ragoo
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Crane failures are almost always installation errors, or from operating outside the equipment's load/reach envelope.


You're forgetting weather.
saw the snow and was thinking reduced allowable stress.

hard to tell what happened but i think the bigger question is why they were doing this type of lift to begin with.
Ragoo
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and ice good point, adding extra load and moment to the end of the crane.
AliasMan02
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and ice good point, adding extra load and moment to the end of the crane.


These are typically accounted for in design and the operations/maintenance manual, though. Possible the conditions were overlooked/ignored by the operator.
AgLA06
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quote:
quote:
quote:
Crane failures are almost always installation errors, or from operating outside the equipment's load/reach envelope.


You're forgetting weather.
saw the snow and was thinking reduced allowable stress.

hard to tell what happened but i think the bigger question is why they were doing this type of lift to begin with.


When I first opened it and saw the span I thought it was a tower crane. Then I saw it was self propelled / movable and was really confused.
Claude!
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Crane.
Milwaukees Best Light
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Really???
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How do you MOVE it now? Cut it into pieces?
Kenneth_2003
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Depending on the size of the load it wouldn't take much snow/ice accumulation on either the crane itself or the load to very quickly get way out of specs. Granted this is just speculation of course that this was the principal cause. Large lifts are not quick operations, so it's very likely they were in need of a window that was several hours long.
Human
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McCamey>>>>Crane
Builder93
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How do you MOVE it now? Cut it into pieces?
Cut the rigging into pieces and use another crane to lift the cab onto a flatbed. The tracks come off too.

The way that thing is flipped and still on the mat makes me think it was extended beyond spec.
Scruffy
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Depending on the size of the load it wouldn't take much snow/ice accumulation on either the crane itself or the load to very quickly get way out of specs. Granted this is just speculation of course that this was the principal cause. Large lifts are not quick operations, so it's very likely they were in need of a window that was several hours long.


I read it was swinging a wrecking ball to demo one of the buildings.
AgLA06
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A random witness said they thought it was. I haven't seen it confirmed anywhere.
Builder93
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quote:
quote:
Depending on the size of the load it wouldn't take much snow/ice accumulation on either the crane itself or the load to very quickly get way out of specs. Granted this is just speculation of course that this was the principal cause. Large lifts are not quick operations, so it's very likely they were in need of a window that was several hours long.


I read it was swinging a wrecking ball to demo one of the buildings.
That's not the kind of crane you would use for a wrecking ball.
AgLA06
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That was my original thought as well, but with this being Manhattan, who knows. They may not have been able to bring down a tall building with explosives due to the tight proximities.
Scruffy
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I realize that, just saying what I read.
Builder93
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SeattleAgJr
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Pretty sure it is a covert CIA/Illuminati effort.

If you watch the video closely, you can see small puffs of smoke along the frame, indicating controlled explosions.

This was brought down on purpose but made to look like an accident.
Picard
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Gravity....that's what happened. I'm surprised you guys haven't figured that out by now!



AgLA06
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Gravity....that's what happened. I'm surprised you guys haven't figured that out by now!




No, that's what happened next.

5C
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Nerds
m-walker
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565ft is a big ****ing stick
RangerRick9211
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quote:
quote:
quote:
Depending on the size of the load it wouldn't take much snow/ice accumulation on either the crane itself or the load to very quickly get way out of specs. Granted this is just speculation of course that this was the principal cause. Large lifts are not quick operations, so it's very likely they were in need of a window that was several hours long.


I read it was swinging a wrecking ball to demo one of the buildings.
That's not the kind of crane you would use for a wrecking ball.


There's no load on the hook in the video. They were lowering the boom because of wind.

Also, not a tower crane.
fta09
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NSFW language

UnderoosAg
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Only thing I hear in that video is gold chains rubbing on track suits and Affliction gear.
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