Well if an aluminum aircraft wing cut through the steel exoskeleton of a building, why wouldn't a steel girder do the same to a thin (relatively) steel box or hull?
If this is a serious post, velocity. If the girders of the bridge collapsed downward at 500 mph then yes, I’d expect them to have more of a “cut” but they certainly didn’t collapse at anywhere near such a speed.
Those containers are certainly smashed and torn apart though; I suspect that helped "cushion" the girder.
Crumple zones?
It didn't cut the steel containers either...
Why would it cut them?
Well if an aluminum aircraft wing cut through the steel exoskeleton of a building, why wouldn't a steel girder do the same to a thin (relatively) steel box or hull?
If this is a serious post, velocity. If the girders of the bridge collapsed downward at 500 mph then yes, I’d expect them to have more of a “cut” but they certainly didn’t collapse at anywhere near such a speed.