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Re: Bridge collapse

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If the longitudinal direction is the direction that a car goes on the bridge
and the transverse direction is 90 degrees to that horizontally,  how are
the beams connected longitudinally and transversly and at what spacing
longitudinally and transversely?

Greg
-----Original Message-----
From: AGHBAL YOUNESSE <aghbal(--nospam--at)hotmail.com>
To: seaint(--nospam--at)seaint.org <seaint(--nospam--at)seaint.org>
Date: Saturday, October 02, 1999 1:48 PM
Subject: Bridge collapse


>
>Hi everyone,
>
>
>I'm working on a project of rehabilitation of a post tensioned bridge,
which
>is very damaged (loss of prestressed tendons, spalling of concrete...)
>because of marine corrosion.
>
>Bridge features : (French units)
>
>* Bridge location : MOROCCO
>* Length : 3,616 km
>* Spans fixation : single spans
>* Beams bearing : Elastomeer baerings (EB)
>* Span length : 45 m
>* Prestressing mode : post tensioned beams and piers
>* Each span contains 3 beams connected each other by a prestressing effort
>in the horizontal sense, and by concrete connection (see the presentation
>below)
>
>* Height of a beam is 2,60 m
>* space between two beams in a span is : 2,40 m
>
>
>
>
>
>
>The question is : how it will collapse (the failure mechanism )???
>
>Is there anyone can I help me.
>
>Thanks in advance.
>---------------------------------------------------------------------
>M. Kamal AGHBAL
>Structural engineer,
>OCP firm,
>Laayoune,
>MOROCCO,
>E-mail : aghbal(--nospam--at)hotmail.com
>-------------------------------------------------------------------
>
>
>
>
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