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

[K3BU at aol.com]

In a message dated 4/16/03 10:17:15 PM Eastern Daylight Time, 
n4zr at contesting.com writes:

> 
>  Yuri, this is simply wrong.  simple vector analysis will show you the 
>  vertical load guy wires apply to the tower as the lateral force 
>  increases.  whether the tower can take it is a design decision made when 
>  the application -- i.e.,  guyed or unguyed -- is determined.
>  
>  

So you are saying that self supporting towers have "weaker legs" than guyed 
towers? Look around! 
Again, with guys, legs in the self supporting tower share the vertical load. 
Yes there is some additional vertical component from the guy, but that is way 
below what would break the legs.
Just think, the "guy wire" in the self supporting tower is the other leg and 
look at the angles, much steeper than any guy wires. Plus self supporting 
tower has to be more rigid "between the legs" to prevent buckling.
This is simply right and can be proven by calculations, not just "simple" 
vector analysis. 

Yuri