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[TowerTalk] Guyed self-supporters (was "Concrete suggestions ")

To: <towertalk@contesting.com>
Subject: [TowerTalk] Guyed self-supporters (was "Concrete suggestions ")
From: K3BU@aol.com (K3BU@aol.com)
Date: Thu Apr 17 18:13:07 2003
In a message dated 4/17/03 3:12:59 PM Eastern Daylight Time, 
EvanB@valmont.com writes:

> Hello Gentlemen,
>  
>  Being in the tower industry I fairly often have to field this question of
>  reinforcing a self supporting tower with guy wires.
>  
>  As the engineers explain it me the fundamental issue is that Self 
supporting
>  towers are very stiff and guyed towers are very flexible.
>  

Isn't that the other way?

>  They explain to me that for a self supporting tower to move enough for the
>  load to transmit into the guy wires it will have moved enough to over 
stress
>  the members it is constructed of therefore defeating the purpose of adding
>  guy wires.
>  

Clear as a mud :-)  Old wives tales.

>  My strong suggestion would be that anyone seriously contemplating such an
>  idea consult with a Registered Professional Engineer experienced with the
>  design and construction of communications towers.
>  

It's mechanical structural engineering 101,
and also some street smarts.

>  Regards, 
>  
>  Evan Burroughs, N7IFJ 
>  Technical Sales Support/Designer, Valmont Communications
>  
>  503-316-2048 phone 

Regards,
Yuri Blanarovich, P.Eng, M.Sc., K3BU, VE3BMV
President Computeradio
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