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
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|