Towertalk
[Top] [All Lists]

[TowerTalk] Tower Mast Wind Loading

To: <towertalk@contesting.com>
Subject: [TowerTalk] Tower Mast Wind Loading
From: "John Santillo" <u1004467@warwick.net>
Date: Tue, 5 Jul 2016 20:49:00 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Hello,

 

I've volunteered to help out a friend of mine with a mast length vs. wind
loading question.

 

If I have a 2" diameter Chromoly Steel mast with a 0.25" wall thickness that
is 16 feet long (4 feet nested in the tower) sitting on top a HDX-555 tower,
how "safe" are we from this mast folding over with the following antennas
mounted to the mast at 80MPH?

 

Antenna #1 will be 1 foot above the thrust bearing and is 5.5 FT2

 

Antenna #2 will be 6 feet above the thrust bearing and is 2.9 FT2

 

Antenna #3 will be 10 feet above the thrust bearing and is 1.21 FT2

 

Antenna #4 will be 12 foot above the thrust bearing and is 0.42 FT2

 

 

Thanks for any help you can provide.

 

 

73,

 

John

N2HMM 

 

 

_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>