Engineer Breaks Down the Collision Force - Baltimore Bridge Collapse #civilengineering #engineer

Structural engineer explains the massive collision force of the Baltimore Bridge collapse (Francis Scott Key Bridge)

[Pageframing]

I don’t understand why we don’t use the blue whale measurement more often. I mean it’s so precise! Everyone knows what a blue whale weighs.

[mjpayne]

What's scary is if 100 blue whales wanted to get together and go around taking out our bridges they could.

[aldrinmilespartosa]

It's makes the random Twitter guy who argued that the civil engineers who design it to take such a scenario into the consideration that much more funny.

[BasimAltemimi]

Thank you Mat, you are right but it was possible to prevent collapse if provided proper Pier Protection and Warning Systems for Bridges Subject to Ship Collisions by FHWA (T5140.19 February 11, 1983). Dr. Tyler Ley posted a video on YouTube about it, he did design similar protection systems. The bridge protection measurements were outdated and required an upgrade per most current loads and codes.

[fibonaccisrazor]

This guy is with certainty not an engineer, but it's endearing that he understands something about blue whales.

[UrsulaPainter]

Thanks for presenting this. Everyone (almost) wanted to understand what happened.

[damianokon]

You don’t want to design structures for these high/heavy loads. There should have been some sort of collision barrier protection in place in my opinion!

[jacoblehn]

I was suprised it all collapsed at one time. It was not supposed to collapse all at once was the big issue

[neilmenon]

Miles per hour is not acceleration. That would be velocity.

[aaronmcdowell]

I estimated about 208 million pounds assuming the 4700 shipping containers were empty meaning this number is smaller then it really was. The kinetic energy at 8 knots and 208 millions pounds is 766 mega joules

[Nick-ckkg]

Just drove over the key bridge, one day before, the accident, our sister lives just ten minutes from the key bridge. 😮😮😮

[scarletflame]

Maybe you should calculate momentum not force with those values 😊

[rsinclair]

That's one huge battering ram! Appreciate the calcs!

[JoonasD]

Erm... why was the acceleration discussed in units of speed? And something like "takes some time for the ship to stop accelerating" seems completely irrelevant and dodging the question, as how we just need the acceleration and not jerk/third time derivative of location. No wonder people/students keep having problems with acceleration concepts when they keep being conflated with velocity and others. 😔

[markparks]

what I learned here is not all Asians are good at math...

[Nic]

Acceleration was ZERO since it lost power. However, it had huge Kinetic energy. 1/2 mass x V^2. And keep in mind when the bridge was designed container ships had NINE times smaller container loads

[ahmadtajy]

Bro told us the force in every unit except Newtons

[aldrinmilespartosa]

It's makes the random Twitter guy who argued that the civil engineers who design it to take such a scenario into the consideration that much more funny.

[playfordtree]

About 100 blue whales, Americans using anything but the metric system.

[drticktock]

7.8mph is Not an acceleration. That's speed.