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Tower Loading

To: <towertalk@contesting.com>
Subject: Tower Loading
From: Joe Subich" <W8IK@ibm.net (Joe Subich)
Date: Sat, 08 Feb 97 19:42:16 -0500
In <19970208.083115.5495.30.k1vr@juno.com>, on 02/08/97 
   at 08:40 AM, k1vr@juno.com (Fred Hopengarten) said:

>As I recall, a perusal of the Rohn 25 footnotes will show that the
>engineering drawings are done at a safety ratio of 3:1.  I believe that
>most commercial buildings never exceed a safety ratio of 1.5:1.  That's
>why there are so many "overloaded" Rohn 25 systems which have never
>failed.

>From memory, EIA 222-E has the following safety factors: guy wires at 2:1, 
steel is rated between 1.5:1 and 1.7:1 depending on several factors related
its size/shape.  I don't remember the specifics ... that information is at 
the office. 
 

73, 

   ... Joe Subich, W8IK  ex-AD8I
       <W8IK@ibm.net>
       <jsubich@ibm.net>


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