Crane mishap - one injury 1

[Spartan5]

https://www.google.com/amp/s/

http://www.washingtonpost.com/local...b-8a67-f314e5fcf88d_story.html?outputType=amp

To add insult to injury, the rigging broke when they tried to right it and they dropped it again:

https://twitter.com/hanna_h_jenkins/status/1372247144325873665?s=20

More pics here:

https://www.popville.com/2021/03/meanwhile-dc-logan/

 

[TugboatEng]

At least they didn't grab everybody's attention before failing.

https://youtu.be/XlTJDcLbLOg

 

[JohnRBaker]

I thought is was convenient that the crane damaged the building NEXT to the one where the crane was being used to help in the construction, or at least I assume that that was what was happening. I mean, if the crane had crushed a portion of the new construction, at least it would have been easier to recover from since the work was still under way.

John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:

The secret of life is not finding someone to live with
It's finding someone you can't live without

 

[RedSnake]

Nothing but poor planning, bad judgment, laziness and stupid!
So they have a one crane that holds up another crane!
And the attachment of the holding crane on the beam of the other crane is not even by the rule book.
So they knew that the protrusion was too long before they started but still did not move the cars and containers so that they could put the crane truck closer to the lifting point.
And they have also bypassed all built-in warning and safety systems in the crane truck by doing so, shame on them !!!
I hope the one who got hurt, will be well compensated.
The rest needs a repetition course.

Best Regards A

“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein

 

[RedSnake]

The Subject should be changed from Crane mishap - one injury to Crane safety manipulation - one unnecessary injury

Best Regards A

“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein

 

[Spartan5]

The Subject should be changed from Crane mishap - one injury to Crane safety manipulation - one unnecessary injury

Hey A,
That picture you posted was of the setup for the recovery operation. Not that that makes it any better. But at the time the injury occurred, there was just the one crane that collapsed.

It sounds like the first collapse occurred when the crane had lowered the load too quickly (not sure if error, or malfunction) which caused a portion of the building under construction to collapse (see the gable end of the framing section lying on the adjacent roof). That collapsing portion of the building got caught up in the rigging and pulled the crane over.

 

[JohnRBaker]

If you watch the video that you posted (copy below), you'll see that they actually were supporting one crane using the rigging from the second one and it was when this rigging let loose that the first crane collapsed:

https://twitter.com/hanna_h_jenkins/status/1372247144325873665?s=20

John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:

The secret of life is not finding someone to live with
It's finding someone you can't live without

 

[SwinnyGG]

The Subject should be changed from Crane mishap - one injury to Crane safety manipulation - one unnecessary injury

The image you posted is from an attempt to right the crane after it tipped, not from while it was in use.

 

[RedSnake]

So they managed to dropp it / tipp it twice ??
I could not get in to the first link in the first post so the only thing I have seen is the video and the pictures.
My picture is from the video.

Best Regards A

“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein

 

[Spartan5]

If you watch the video that you posted (copy below), you'll see that they actually were supporting one crane using the rigging from the second one and it was when this rigging let loose that the first crane collapsed:

That video is from the recovery operation after the crane had already collapsed once when operating all alone.

Here is a different angle of the second collapse which occurs during the recovery operation:

https://twitter.com/tweedelman/status/1372248366051168256?

 

[JohnRBaker]

Sorry, I was not aware of that. Since it was part of the initial post, I assumed that it showed the actual event.

John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:

The secret of life is not finding someone to live with
It's finding someone you can't live without

 

[RedSnake]

Okey
Then maybe it should be two threads, Crane mishap - one injury and Recovery Crane mishap - no injury. ;-)

I actually so a recovery of a timber truck where the the truck trailer with the crane hade tipped over same position on TV the other night.
A lot of things done and time spent before tipping it on it's wheels again.

Best Regards A



“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein

 

[bones206]

Looks like one of the outrigger plates was partially in the sloped gutter at the edge of the street. Not sure if it started there or just ended up there.

 

[IRstuff]

Here's a photo showing the original incident; no second crane, yet.

The Twitter video shows the 2nd crane trying to right the collapsed crane and bumbling it by dropping the original.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529 Entire Forum list

http://www.eng-tips.com/forumlist.cfm

 

[LionelHutz]

Were the outriggers not out far enough? Are they missing a counterweight on the back side of the crane? The way it fell over again at the angle it was lifted to just seemed really odd to me. I would have expected the crane to finish up-righting itself at that angle. The boom appears very extended, but it is at a fairly steep angle. I'd think the crane would be stable in that configuration when just supporting the boom. Yet, it appeared in the up-righting video that the boom still needed the other crane supporting it even after up-righting.