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Re: Pedestrian Bridge

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There is an uplift effect due to trucks with windscreens mounted on the
cabs.  However, from what I remember the effect decreased rapidly with
height, so unless the pedestrian bridge is at the bare minimum vertical
clearance, it probably will not have a large impact.

M. David Finley, P.E.
2086 SW Main Boulevard - Suite 111
Lake City, FL  32025
386-752-6400

----- Original Message -----
From: "Bulent" <bulentdeveci(--nospam--at)superonline.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Friday, February 21, 2003 4:29 PM
Subject: Pedestrian Bridge


> You have to consider two important subject in designing a pedestrian
bridge
>
> First, the vertical displacement caused by live load should not exceed
> L/1000 (as I know this is a code requirement)
> and the second, wind loading. But especially the wind effects which will
be
> caused by vehicles passing the highway under your pedestrian bridge: I
think
> this effect will govern your design if you are not in a seismic area.
>
> regards
>
> Bulent Deveci
>
>
>
>
>
>
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