Ted... thanks for the comments, especially about going all the way through
the trunk with the anchor bolts (I think that's what you said). According
to my friend the arborist, the tree will heal right around either a lag
screw or a bolt that goes through, with no lasting harm to most trees.
Maybe you should think again about using cedars as I've been told they are
relativly shallow rooted. I've seen this to be true myself, as the first
trees to tip over in my back woods seem to be the cedars. Oaks, on the
other hand, are relatively deep rooted. If I do use trees as guy anchors,
I'll use oaks.
Jerry K3BZ
----- Original Message -----
From: "T. Nawrocki" <nawrocki@direct.ca>
To: <towertalk@contesting.com>
Sent: Friday, September 12, 2003 8:52 AM
Subject: [TowerTalk] using trees as tower guypoints
Hi Al,
I have been using 3 strategically placed trees as my guy points for my
100 foot L&R tower.This tower has 31 inch leg to leg spacing.
I used eye bolts, girthing the tree, and then ran some good quality guy wire
thru
the eyelets. then attached the tower guywires, via turnbuckel, to the
girthed
guywire.
Bottom guys are from 60 foot level, and are standard metal wire.
Top guys are kevlar guy, from 90 foot level.
I am using the non-metalic guys at the top, because will be installing a 2
element
40 mtr beam, side rotateable at 65 feet .
Engineer who checked installation, and building inspector who inspected
the installation, both gave it a passing grade.
As the trees grow, I rreplace the eyebolts, as not to choke the trees.
The trees have different cross dimensions, one is 2 feet across, second is
about 3 feet, and last is about 4 feet.
All 3 trees are cedar, and all are healthy.
So tree guy anchoring is possible, even with building inspector approval.
73 de ted VE7TIN
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
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_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
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http://lists.contesting.com/mailman/listinfo/towertalk
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