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

[Bill Coleman]

On 4/16/03 11:57 PM, K3BU at aol.com at K3BU at aol.com wrote:

>It is called self-supporting tower, it does not need to be guyed if it is 
>loaded with design load and under design WX conditions. But if you want to 
>be 
>safer, exceed the design load and for more severe conditions, by using guy 
>wires (properly designed) you can expand the load capability, survivability 
>and safety factor (for that Hurricane or extra ice load and mushy ground). 

I don't think this is generally true.

It all depends on what the limiting structural element of the tower is. 
Only the Engineer knows that for sure.

And those "slack" guys aren't just infintesimally small lines of support. 
They are round members with a very real wind surface area. They could 
actually ADD to the tower load....

Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at arrl.net
Quote: "Not within a thousand years will man ever fly!"
            -- Wilbur Wright, 1901