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[TowerTalk] trees as guy anchors

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Subject: [TowerTalk] trees as guy anchors
From: (Chuck Dietz)
Date: Wed, 17 Sep 1997 21:55:26 -0500
With bungee cord guys, can you eliminate turnbuckles?  I think you may
have come up with something here!

Chuck, KE5FI

Bob Perring wrote:

> Ive always thought that if I ever had to use a tree as a guy point, I
> would just use bungee cords as the guying devices.
> That way, I would impose a dampening on the harmonic oscillations that
> might develop as the tower tried to oscillate back and forth in the
> wind.
> (Damped harmonic oscillation calculations should be employed in your
> arrangement so as to ensure that the design generates destructive
> interference as opposed to reinforcement activity)
> 1.
> Should the tree fall, the cord would elongate so as to not cause
> damage
> to the tower.
> 2.
> An additional safety precaution would be to back guy the tree so that
> it could not fall towards the tower. Of course, this would only be a
> problem should the tree hit the tower, since, again the bungees would
> forgive the tree falling upon them.
> 3.
> For obvious reasons, I have always been envious of those that lived in
> climates where rubber trees grew quite large, an obvious benefit,
> intrinsic within the very name of the support device, should the tree
> ever fall towards, and hit,  the tower.
> Of course, as always, if you have several trees in your yard from
> which
> to pick as guy points, do, by all means, as K5RC suggests, get the
> county agent or an arborist involved, so as to properly pick out a
> tree
> species on your property that will more closely resemble that of a
> rubber plant.
> N5RP
> N5RP
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