How not to remove a bridge....................

[Serpo]

lhttp://www.dailymail.co.uk/news/article-3184203/At-20-people-injured-homes-shops-demolished-two-cranes-collapse-removing-bridge-Holland.html




http://i.dailymail.co.uk/i/pix/2015/08/03/23/2B12CD0800000578-3184203-image-a-7_1438639479236.jpg
(http://www.dailymail.co.uk/news/article-3184203/At-20-people-injured-homes-shops-demolished-two-cranes-collapse-removing-bridge-Holland.html)

[Cebu_4_2]

The video you are trying to watch is currently unavailable... please try again later.

[Serpo]

Yea would of posted it , imagine it , too embarrassing to show....

[Horn]

Better get them cranes out of the water fast, before global warming comes along and its too late.

Everything there will be under water... ._.

[monty]

I once worked for a company that sold and rented P&H cranes. We repaired 2 in during that time frame that were turned over due to operator error.

[Glass]

https://www.youtube.com/watch?v=X02iz3NPZ54

looks like one crane went too far to one side. the barge went lower in one corner and over it went.

[Dogman]

Center of gravity of the lift was lost !

When it does bad things can happen during lifts when it shifts or the crane is out of position .!

Sent from my Nexus 7

[monty]

Working on the deck of a barge would be tricky even for the most seasoned of operators.

[Dogman]

Working on the deck of a barge would be tricky even for the most seasoned of operators.

Been on some huge pipe laying barges in the gulf. Owned by McDermott, frigging HUGE crane built-in on one end, and 4 decks deep and the crews lived on them. They layed pipe and also were used to move rigs, platforms, etc!

Sent from my Nexus 7

[monty]

I had a friend who was a retired dragline operator who spent his life on the Mississippi River on a barge mounted dragline. He told a lot of interesting stories.

[Carl]

And nobody considered two cranes on a floating barge swinging that much weight, might be a bad idea.....

[Serpo]

And nobody considered two cranes on a floating barge swinging that much weight, might be a bad idea.....



Probably have now..........

[Hitch]

looks like one crane went too far to one side. the barge went lower in one corner and over it went.

Incredible video of the accident. I agree. That barge was too narrow and with the weight of the pick so high up, it just looks like an accident waiting to happen, which it did. All the crane barges I work are more square, with only one crane on them. Plus, they have spuds on them, to keep them anchored. That barge was just too narrow. What they were trying to do was reckless, imo.

[Horn]

That was the new bridge section going in?

Looks like a case of someone trying to do to much all at once.

[gunDriller]

they were channeling the BP oil spill.

[SWRichmond]

You can hear shouting as soon as the load starts moving; they know they're in trouble right away. When you get something that large moving at any rate of speed other than "dead snail's pace" you are screwed.

[gunDriller]

You can hear shouting as soon as the load starts moving; they know they're in trouble right away. When you get something that large moving at any rate of speed other than "dead snail's pace" you are screwed.

i wonder if (and how) that might somehow apply to something even larger ... MUCH larger ... the US economy.


something i think about when i'm swimming, "how the hell do you model this" - i.e. the economy.

i've used PSpice (electrical circuit analysis software) to model mechanical systems (heat transfer). got it mapped 100%, had
another engineer checking my work.


i guess you don't need a model to know when it's time to get out of the way.

[Horn]

I dont know if its my monitor or its design, but the farthest boom appears bent from the get go in that video.