[TowerTalk] Self Supporting Tower Install

[Lee K. Brown MD]

I recently moved my US Tower crank-up from my old QTH to my new QTH, While the tower had been originally installed with the usual rectangular concrete base specified by the P.E. that US Tower used to wet stamp the plans for me, the P.E. that I engaged for the re-install locally specified a cylinder of concrete. Apparently not unusual at all.

73,
Lee, KI7UR

 

 

Lee K. Brown MD
Professor of Internal Medicine and Senior Vice Chair, Clinical Affairs

Department of Internal Medicine
Professor of Pediatrics
University of New Mexico School of Medicine
Professor of Electrical and Computer Engineering
University of New Mexico School of Engineering

Albuquerque, NM

 

 

-----Original Message-----
From: Gary <gary_mayfield at hotmail.com>
To: towertalk <towertalk at contesting.com>
Sent: Thu, May 11, 2017 5:58 pm
Subject: Re: [TowerTalk] Self Supporting Tower Install

That catalog is here:

http://www.criticaltowers.com/ROHN%20Industries/Media/pdfs/BX%20Towers/BX%20Catalog.PDF


It was cylinder base designed to be filled with dirt...

73,

Joe kk0sd



________________________________
From: TowerTalk <towertalk-bounces at contesting.com> on behalf of Mike Ryan <mryan001 at tampabay.rr.com>
Sent: Thursday, May 11, 2017 6:42 PM
To: towertalk at contesting.com
Subject: [TowerTalk] Self Supporting Tower Install


          Over the weekend I was shown some pictures of a method being used
by some locals here to plant a new 50ft self supporting tower. Not sure of
the WIDTH of the hole but I am pretty sure it was 5ft wide.  (As I recall it
was going to be 5 x 5 x 5).  What I was surprised at in particular was their
use of a section of plastic corrugated pipe (PVC) which was to line the
hole.  I guess it is designed as a cylinder of some type to hold the
concrete. I've done a few towers myself and would not ever have dreamed of
such a scheme but I was told they got their 'idea' from a ROHN catalog.
....I've never seen THIS in a ROHN catalog.  The fill in around the cylinder
would fly in the face of the otherwise 'undisturbed soil'  mandate.  They do
intend to put rebar in the cylinder and attach the bolts to anchor the base
to these.
           Has anyone ever seen this method or done this before?  -Mike

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