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Re: Pedestrian Bridge

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I don't know offhand the exact title, but you need to comply with the AASHTO
Pedestrian Bridge Code as a minimum.  You wouldn't need to comply with the
AASHTO code for Highway Bridges except that you may want to consider vehicle
impact on the supporting columns or provide positive protection (rated
traffic railings, etc.).

Since it crosses a 4-lane highway, I am assuming the roadway is under state
jurisdiction and you will require a permit from the state DOT.  They may
impose additonal requirements that exceed other codes.  I would suggest
starting there.

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

----- Original Message -----
From: "Randy Diviney" <rsdiviney(--nospam--at)hayeslarge.com>
To: "Seaint" <seaint(--nospam--at)seaint.org>
Sent: Wednesday, February 19, 2003 8:09 AM
Subject: Pedestrian Bridge


>
>
>  I am currently designing a pedestrian bridge which will connect 2
existing
> hospitals. The bridge will be used for hospital personnel only. The spans
> are approximately 98' and 60' with a 10' cantilever on each end. The
bridge
> is 11' wide. It crosses a 4 lane highway and a 2 lane highway. The
> architecturals call for steel columns and no limit on the size. 2 steel
> beams will span from column to column. I was going to use cantilever
> construction to help with erection. The roof framing will be tapered
> castellated beams supported by 6" tube columns at 10' o.c. The footings
have
> been in place for about 10 years and must be reused.
>
> Can I design the structure as if it is a building or do I need to apply
some
> bridge principles? What other issues do I need to consider?
>
>
> TIA
>
>
>
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