Cranes Tip Over on Barges – IDIOTS!
When I was in the 8th grade, I was in a canoe that tipped over in a lake.
Canoes tip over faster than you can say "Oh No!"
I was in CT with my friend Jim Kahles.
My new SLR camera got dunked.
In the past few years I've gone sailing up here in NH and to get to the sailboat moored in the harbor, you need to ride in a little dingy.
It's also prone to tipping over if you get your center of gravity towards the edges of the boat.
Obviously the engineers who thought up this ingenious method of craning the bridge section have NEVER ridden in a canoe or dingy!
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Tim, why do you automatically assume this was the result of engineers screwing up? It looks like the absence of any engineering at all!
Granted, this is the Netherlands, where contracting procedures are bound to be different, but here in the US, CONTRACTORS are generally responsible for determining their own means and methods for doing the work. This arrangement may never have reviewed by anyone with technical training.
BTW, cranes are routinely used on the water using barges - but obviously nothing like what's shown in the video. With proper planning, sizing, equipment selection, etc. it works fine.
Hang on a minute - this isn't a question of balance (as in kayak capsize) but of structural failure. If you watch the rear crane at 52 seconds you can see the lower pivot of the crane's jib fails explosively where it joins the base.