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#1
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05-15-2017, 02:10 AM
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 ✝Mudderator from Hell✝ Poster Rank:11 e-mail Join Date: Oct 2006 Posts: 95,535
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Large Crawler Crane Lifting Viaduct Section Goes Wrong
Northern Italy. 9 May 2017. A crane, owned by Vernazza, was rigged with a back mast and suspended superlift counterweight was lifting a large section of a new viaduct at the Arcisate Stabio railway yards, near Varese when it appeared to the rear of the tracks came off the ground and after seeming be on the point of balance for a while before it finally lost stability and overturned dumping its load. The operator managed to jump clear as the crane went over and is uninjured and that no one else was caught up in the incident. |
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#2
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05-15-2017, 09:56 AM
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| ♚ Legacy Gold Member ♚ Poster Rank:99 Male Join Date: Nov 2009 Posts: 16,729 Mentioned: 7 Post(s) Quoted: 4605 Post(s)
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Re: Large Crawler Crane Lifting Viaduct Section Goes Wrong
As long as nobody got hurt, it's just entertaining. (The ancient Romans used to do this, without any crane, and they never dropped their viaducts.) |
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#4
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05-17-2017, 09:30 PM
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 My Rank: LANCE CORPORAL Poster Rank:2108 Female Join Date: Jan 2013 Posts: 229 Mentioned: 0 Post(s) Quoted: 37 Post(s)
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Re: Large Crawler Crane Lifting Viaduct Section Goes Wrong
Never heard that much wailing over a crushed person, lol. Loss of $$$ tho', different story.
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#5
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05-18-2017, 07:36 AM
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 My Rank: FIRST SERGEANT Poster Rank:400 Male Join Date: Jul 2013 Posts: 3,008
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Re: Large Crawler Crane Lifting Viaduct Section Goes Wrong
Seems to me they didn't have quite enough counterbalance and/or the load was much too heavy for the crane.
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#6
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05-23-2017, 12:35 AM
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 ♚ Legacy Gold Member ♚ Poster Rank:920 Female Join Date: Jan 2009 Posts: 792 Mentioned: 0 Post(s) Quoted: 87 Post(s)
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Re: Large Crawler Crane Lifting Viaduct Section Goes Wrong
I don't know the math involved, but just looking at that, my gut says the counterweight is much too small. Apparently I'm right.  |
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#7
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05-24-2017, 11:11 PM
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 ♚ Legacy Gold Member ♚ Poster Rank:253 Join Date: Dec 2009 Posts: 5,503
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Re: Large Crawler Crane Lifting Viaduct Section Goes Wrong
They didn't give themselves any room to raise the counterweight and/or lower the boom it was on.
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#8
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05-30-2017, 12:56 PM
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| My Rank: PRIVATE FIRST CLASS Poster Rank:4795 Join Date: Jan 2013 Posts: 58 Mentioned: 0 Post(s) Quoted: 1 Post(s)
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Re: Large Crawler Crane Lifting Viaduct Section Goes Wrong
That was an impressive catastrophic failure to be able to see happen. I rewatched the video several times to see all the nuances and was specifically looking for the operator whom I saw barely dodging falling debris. Impressive indeed.
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#10
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08-15-2017, 09:38 AM
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 ★ Legacy Member ★ Poster Rank:426 Male Join Date: Sep 2009 Posts: 2,700 Mentioned: 2 Post(s) Quoted: 331 Post(s)
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Re: Large Crawler Crane Lifting Viaduct Section Goes Wrong
Why would they do that? It was supposed to keep the crane body level, so no need to go up or down. Somebody has obviously fucked up the calculations for this lift. There should be a 50% safety margin for the whole operation. |
