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Re: [TowerTalk] Tower base

To: "Keith Dutson" <kdutson@sbcglobal.net>,<towertalk@contesting.com>
Subject: Re: [TowerTalk] Tower base
From: "Chet Moore" <chetmoore@cox.net>
Date: Tue, 29 Aug 2006 16:07:39 -0400
List-post: <mailto:towertalk@contesting.com>
I'm with you Kieth,

Don's statement certainly doesn't apply to all towers.  Rohn 25 and 45 and 
AB-105 are some others it doesn't apply to.

73

Chet n6zo
----- Original Message ----- 
From: "Keith Dutson" <kdutson@sbcglobal.net>
To: <towertalk@contesting.com>
Sent: August 29, 2006 3:03 PM
Subject: Re: [TowerTalk] Tower base


> Te each his own.  I have never put up a guyed tower using a base plate and
> do not have any future plans for one.  I always use the concreted short
> tower section as recommended in the Rohn catalog.  I have never had a
> leveling problem so perhaps I cannot see from your perspective.
>
> 73, Keith NM5G
>
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of Donald Chester
> Sent: Tuesday, August 29, 2006 1:02 AM
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Tower base
>
> Absolutely the WORST possible way to build a guyed tower is to set the
> bottom section in concrete.  It is far better to use a base plate with a
> pier pin in the concrete, to allow the tower base some freedom of movement
> in heavy winds.  The tower will tend to sway and twist in windstorms, but 
> if
> the base is set in concrete, that puts an unnecessary amount of stress and
> shear on the tower structure.
>
> Another problem is that it is nearly impossible to get the buried base
> section absolutely plumb, no matter  how carefully you measure.  And
> concrete foundations do settle with the passing of time, so with certain
> soils, the tower may not stay plumb even if it was achieved initially.
>
> You very rarely see commercial tower installations built that way.
>
> Don, k4kyv
>
>
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