Bridge collapse in Baltimore
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- freebrickproductions
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Re: Bridge collapse in Baltimore
From what I've read, apparently the ship had also been having issues with losing power while docked at a previous port in Virginia, so it seems that it might not have been a sea-worthy vessel to begin with.
Probably busy documenting grade crossings in the southeastern United States.
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- Vierwielen
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Re: Bridge collapse in Baltimore
Regardless of the type of enginering used on the bridge, it was still a cantilever type bridge in that the bridge structure on one side of the pillar balanced the structure on the other side, so when one side collapsed, so did the other side.
Re: Bridge collapse in Baltimore
Looking at the principal video of the collision, against the left hand pillar, it seems the balanced cantilever there collapsed, the cantilever on the right lost its support in the middle and dipped a bit, and on the far right it thus lifted, just a bit, but enough to raise it off its bearings, whereupon that side all came down as well.Vierwielen wrote: ↑Thu Mar 28, 2024 22:36 Regardless of the type of enginering used on the bridge, it was still a cantilever type bridge in that the bridge structure on one side of the pillar balanced the structure on the other side, so when one side collapsed, so did the other side.
- freebrickproductions
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Re: Bridge collapse in Baltimore
Probably busy documenting grade crossings in the southeastern United States.
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Re: Bridge collapse in Baltimore
A fundamental issue on many large container ships, including the MV Dali is that they have only 1 engine. They may well have thrusters driven by that engine but if its down then you have a real problem. Ships entering the Tees have 5 tugs available on standby along with pilots. Looking at AIS ship tracking on the Tees I see a pilot boat, 2 merchant ships which are likely to have pilots, 2 survey vessels, a dredger, 3 tugs, 2 small general purpose cargo ships likely heading to the wharves on the north bank. The tugs were more necessary to cover the risk of running aground on the harbour bar where sediment is dropped as the water flow slowed but these days it gets a lot of dredging.freebrickproductions wrote: ↑Thu Mar 28, 2024 21:40 From what I've read, apparently the ship had also been having issues with losing power while docked at a previous port in Virginia, so it seems that it might not have been a sea-worthy vessel to begin with.
This was the old Middlesbrough Docks.
https://www.google.com/maps/@54.5790281 ... &entry=ttu
It used to look like this in
- Vierwielen
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Re: Bridge collapse in Baltimore
Probably cheaper to pay an insurance premium than to do proper engineering - after all, who can affrd an American lawyer?freebrickproductions wrote: ↑Sat Mar 30, 2024 21:05 Per CBS News, the majority of bridges in the US lack any kind of protection.