On Tue, 29 Jun 2004 16:48:11 -0400, Bryan Martin
wrote:
//
The designers of the Tacoma-Narrows bridge didn't give enough consideration
to its aerodynamics or stiffness. It shouldn't have been flexing to that
degree at all. It was a solid road deck built from I-beams in an area known
for frequent high winds. Modern suspension bridges are usually built from
steel trusses for stiffness and have open steel grid decking down the middle
of the span to kill any lift generated by the roadway.


It's not a kind site. The current bridge there gallops too a little,
in high winds.

Brian W