same thing happened to a bridge in 1940, you'd hope engineers would have learned their lesson :p
aquila
quote:
Originally posted by TheKidsWantTechno
you'd hope engineers would have learned their lesson :p
This is Russia.
R-U-S-S-I-A!!!!
ChemEnhanced
I would love to drive over that bridge
DJ RANN
They had the same problem with the Millenium bridge in London. The thing was hailed as a massive step forward in engineering but they had to cancel the queens opening of it as it would have flipped anyone straight off it in to the thames.
So they got Lotus (cars) to design an active suspension system to dampen the vibration and it completely stopped it.
Joss Weatherby
quote:
Originally posted by TheKidsWantTechno
same thing happened to a bridge in 1940, you'd hope engineers would have learned their lesson :p
Tac-town represeeeent! :D
bas
Aren't they engineered that way on purpose? If they didn't sway like that they would crumble.
Joss Weatherby
quote:
Originally posted by bas
Aren't they engineered that way on purpose? If they didn't sway like that they would crumble.
The problem with the Tacoma Narrows is that it reached a point where it began to resonate and grow more and more violent till it basically tore itself apart.
The winds in the Narrows (its one of the narrowest parts of the Puget Sound) gets really really really strong quite often and the guard rails and pedestrian rails were solid with no openings for the wind to pass through. Coupled with the skinny deck (only two lanes) the whole thing undulated with the wind coming up and over on top of it.
The bridge they built after it has openings in the guard rails and grating on the roadbed between the wider, more numerous lanes.
Bridges should have some give, especially suspension bridges, but resonating cycles like this are bad bad news.
The17sss
No, this is whack:
leph555
would be fun to walk across that bridge when you are tripping balls
