Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Re: Pedestrian Bridge

[Subject Prev][Subject Next][Thread Prev][Thread Next]
One item that hasn't been brought up is constructability.  Since you will
working over the highway, you will need to consider how the bridge
construction will affect the traffic below.

Issues include
1.  Are you allowed lane closures, short-term closure of the highway,
rolling road-blocks, etc. in order to set the beams?
2.  Any special restriction (safety netting, etc.) for activities over the
traffic
3.  Columns have to be out of the clear zone or be suitably protected
I'm sure there are others, but these come to mind immediately.

I'd also rcommend doing a quick rough check to make sure the exisitng
foundations are adequate before you go too far.  Wind load criteria, etc.
has changed through the years.

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
>
>
>
> ******* ****** ******* ******** ******* ******* ******* ***
> *   Read list FAQ at: http://www.seaint.org/list_FAQ.asp
> *
> *   This email was sent to you via Structural Engineers
> *   Association of Southern California (SEAOSC) server. To
> *   subscribe (no fee) or UnSubscribe, please go to:
> *
> *   http://www.seaint.org/sealist1.asp
> *
> *   Questions to seaint-ad(--nospam--at)seaint.org. Remember, any email you
> *   send to the list is public domain and may be re-posted
> *   without your permission. Make sure you visit our web
> *   site at: http://www.seaint.org
> ******* ****** ****** ****** ******* ****** ****** ********
>


******* ****** ******* ******** ******* ******* ******* ***
*   Read list FAQ at: http://www.seaint.org/list_FAQ.asp
* 
*   This email was sent to you via Structural Engineers 
*   Association of Southern California (SEAOSC) server. To 
*   subscribe (no fee) or UnSubscribe, please go to:
*
*   http://www.seaint.org/sealist1.asp
*
*   Questions to seaint-ad(--nospam--at)seaint.org. Remember, any email you 
*   send to the list is public domain and may be re-posted 
*   without your permission. Make sure you visit our web 
*   site at: http://www.seaint.org 
******* ****** ****** ****** ******* ****** ****** ********