Lee-
Don't be so touchy; The first sentence of Bills post was the only answer you
need.
There is NO "Formula" for designing an elevated guy post; it involves too
many variables and options. Because there are many options, a trained,
experienced specialist is required.
BTW- Your "Rule of thumb" for wooden poles seems to be inverted, to me. Can
you tell me where you found that?
Bill--W4BSG
-----Original Message-----
From: ak4qa
Sent: Thursday, July 16, 2015 4:33 PM
To: Cqtestk4xs@aol.com
Cc: TOWERTALK@contesting.com
Subject: Re: [TowerTalk] guy posts math
If you read my message, the formula that I am asking for includes those
variables.
Not trying to be snarky but I am a engineer, just not a structural engineer.
You may have just been trying to be helpful and the texting may have not
communicated that. However your response seemed a bit condescending.
I am fully aware of railroad rails being used but I do not want to make a
educated guess.
Again, let me reiterate looking for the 'formula' so no guess work is
involved.
73,
Lee
AK4QA
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: Cqtestk4xs@aol.com
Date:07/16/2015 2:41 PM (GMT-06:00)
To: ak4qa@msn.com
Cc: TOWERTALK@contesting.com
Subject: Re: [TowerTalk] guy posts math
Suggest you contact an engineer. Wood is a far different material than
whatever you are using. Variables include: diameter of the pipe, thickness
of the wall, whether the interior is filled with concrete and rebar.
Anything you might come up on your own is an educated guess at best . I'm
not a big fan of guessing on a 100 ft tower.
Some guys use a steel girder as the post.
Bill K4XS/KH7XS
In a message dated 7/16/2015 7:24:58 P.M. Coordinated Universal Time,
ak4qa@msn.com writes:
Does anyone have a the formula for guy posts?
I have a friend that wants tall guy posts (7 feet) for a 100 foot tower so
he can walk under them. I need to show him the stress that is involved in
that as opposed to 2 feet out of the ground.
I've always used the wooden pole rule of thumb; for every foot up you need 3
feet down.
Also, if you have the calculation for the back guy (i.e. earth screws)
well my friends, that would be gravy on my biscuit!
All the best and
73,LeeAK4QA
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