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999pingu111 (November 30, 1999 at 12:00 am)
Did they take the whole thing down because they couldn't rebuild it?
tro8Aoper (November 30, 1999 at 12:00 am)
resonance???
vinowns (November 30, 1999 at 12:00 am)
ooook
PhiberOptic (November 30, 1999 at 12:00 am)
Actually, the main problem that the bridge had was that the main supports were set along nodes (wikipedia: Node_(physics)). This allowed a standing wave to develop which got more dramatic as the wind speed increased.
kram021988 (November 30, 1999 at 12:00 am)
The first Tacoma Narrows Bridge opened to traffic on July 1, 1940. It collapsed four months later on November 7, 1940, at 11:00 AM (Pacific time) due to a physical phenomenon known as aeroelastic flutter caused by a 67 kilometres per hour (42 mph) wind.
SanJoseSharksNetwork (November 30, 1999 at 12:00 am)
The way the bridge was built allowed the wind not to pass causing this. A bridge like the Golden Gate Bridge has hole on the side of it. On this bridge you can see no passage for the wind to travel. Hate to have this happen to me. Look how this bridge turns. Well Hope No one has to go through something like galloping gertie again.
Also I WILL be attending Youtube Live 2008
Hope to See YOU
Dave
ElderScrolls500 (November 30, 1999 at 12:00 am)
walking their must be so much fun ^^
Ev3rliving (November 30, 1999 at 12:00 am)
The collapse actually wasn't caused simply by resonance, although viewing the video certainly suggests that. If you're interested, and know a little bit about differential equations, then you should look up the work done by Lazer and McKenna. If not, then well, just trust me on it. =D
Flystand (November 30, 1999 at 12:00 am)
Yeah, kinda emberassing that the engineerings didnt thought of or miscalculated resonance during their calculations.
ahmedsalah86 (November 30, 1999 at 12:00 am)
Thanks alot for clarifying what really happened to the bridge,,, i'm wondering though why it's engineers had not put that in concideration. |