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Re: Circular Concrete tank

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Richard,

        Calculate the lateral deflection if you used hoop stress and the
deflection if you used a wall cantilevered from the floor.  The relative
stiffnesses should give you a fair indication.  The smaller the deflection
the larger the share of the load that system would take.

Regards,

H. Daryl Richardson

richard lewis wrote:

> I am about to design a circular concrete tank.  It is a temporary
> retention/detention pond for stormwater runoff.  It has about 120 feet
> diameter.  The walls are about 10 feet high.  My question has to do about
> using hoop stresses for design.  Is there some rule of thumb for a height
> to diameter ratio for a circular tank where hoop stresses are no longer
> of any benefit and the wall behaves more like a cantilever retaining
> wall?
>
> Rich
>
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