There is a pretty detailed discussion of vibrations due to people walking or
running in the 1997 AASHTO Pedestrian Bridge Guide Spec. I can't find my
From: SASQUAKE [mailto:sasquake(--nospam--at)uswest.net]
Sent: Wednesday, February 09, 2000 9:48 PM
Subject: Re: Lateral Force from Pedestrian Movement
In a message Wed, 9 Feb 2000 19:01:27 EST
The only equation we have now is "college town + college kids+alcohol+
can sing/dance = problems". Currently it is a food establishment, but I can
easily see it becoming a bar in the future.
* Your equation has too many unknowns, is dynamically indeterminate, and
appears to be highly nonlinear. I would pay
* particular attention to resonance effects, if it got to swaying in it's
fundamental mode. So damping out displacements and their
* enthusiasm would be a good idea. Kenny G forces may be significant. So
maybe some extra braces, frames, and plywood
* would help.
* Make sure all connections are bombproof, so they don't Comealoosa, ala
Hyatt Regency in Kansas City. -|-| all
* Our experience in the 1994 Northridge, California earthquake has been,
* if you don't remove that "backup bar", you could be in real trouble!
* IANAL: The Balcony is now closed.
Oregon Earthquake AwarenessTM / The Quake NorthwestTM
"We Have Nothing to Fear But Beer Itself" / "We're All
Subducting In This Together"
"Do not look back in anger, or forward in fear, but around in
awareness." -- James Thurber
Thanks in Advance