I see that Rohn calls out the AB2 base for the 25 tower. This hole is 4 x 6
by 4 foot deep. I dug three of these for my Rohn 45 tower. A lot of work but
the tower is going nowhere now
The rod is tied to the rebar cage, sits in the ground and can be secured by
tying it to posts in the ground etc. You need to set the angle of the GAC303
but that is pretty easy to do with an angle measuring device which Lowes
sells.
Download the Rohn document and it shows you the size of rebar to use.
Mark N1UK
----- Original Message -----
From: "Mac English" <km9zkb9mdl@yahoo.com>
To: <towertalk@contesting.com>
Sent: Wednesday, 22 September, 2010 10:25 PM
Subject: [TowerTalk] Rohn 25 Guy Anchor
I have never done an installation of guy anchors by rohn (GAC303). How deep
does
the hole get dug? I assume at least 4 feet min. Would the hole be a 2x2x4
hole?
How do I get the rod at the angle it needs to be while the concrete gets
poured?
Does the hole get dug beyond the point of where the anchor exits the ground?
What size re-bar is needed? Is it number 7? What kind of wire gets used to
hold
the re-bar together? Do I have to build forms for the concrete re-bar cage?
I have only ever done the installation of I-beams as anchors. Those are
quick
and dirty. I am unable to pull that installation off this time. So this is
what
I guess I will have to do unless someone could give me some other
suggestions. I
was thinking maybe some kind of steel posts in the ground 5 feet deep by
about
24in wide in concrete. If so what size posts would I need as far as
diameter,
thickness, length etc.
Thank you,
Mac
KM9Z
_______________________________________________
_______________________________________________
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
|