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Re: Curved Retaining Walls

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Thank you Roger, this is precisely what I was looking for.  If I remember
correctly, it was one of your posts I was thinking of from the past.

Grateful as always,

Paul Feather
----- Original Message -----
From: "Roger Turk" <73527.1356(--nospam--at)compuserve.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Monday, October 16, 2000 1:58 PM
Subject: Curved Retaining Walls


> Yes, Paul, I'm here if I am the Roger that you are referring to <G>.
>
> Curved retaining walls need to be designed similar to a pressure vessel
> (shell), otherwise, for concave inward (towards the retained soil) they
will
> crack and crack frequently (16" to 24" spacing).  A tension bond beam at
the
> top is required, and, of course, like a drag strut, that tension bond beam
> has to be anchored.  (Concave outward will result in the retaining wall
being
> in compression.
>
> Actually, a concave inward retaining wall can be a very lightly reinforced
> wall vertically as it can be considered a simply supported wall supported
> both at the footing and at the tension bond beam.  Likewise, horizontal
steel
> can also be light as it doesn't take very much steel to resist horizontal
> tension in the wall.
>
> If you want to avoid complaints from the masons/ironworkers, put two rows
of
> vertical reinforcing in so that they will not say that the engineer
doesn't
> know what he is doing by putting vertical reinforcing near the outside
face
> of a retaining wall.
>
> Does this address your concerns.  I have tried to be very brief.
>
> A. Roger Turk, P.E.(Structural)
> Tucson, Arizona
>
> Paul Feather wrote:
>
> >>I know I have seen discussion regarding curved retaining walls before,
I am
> looking for a brief synopsis of potential issues and problems that should
be
> addressed during design of curved walls.  Any experience I can draw upon
is
> appreciated.
>
> Roger, you out there?
>
> Thanks,
>
> Paul Feather<<
>
>