[TowerTalk] Engineering closer-in guys

[Mike Lyon]

Which brings up another good point.

Anyone know of a good PE for towers?

-Mike

> On Sep 2, 2020, at 19:44, Tony Brock-Fisher via TowerTalk <towertalk at contesting.com> wrote:
> 
> 
> Yes, I had a tower engineered to have one set of guys anchored closer in than the other two, and closer than the Rohn guidelines. I ended up with 78' of Rohn 45G. The Rohn spec called for two levels of guys with anchors at 56' from the base. Because of proximity to a property line, one set of guys was moved in to a distance of 30' from the base. This was engineered by a Professional Engineer (also a ham). He advised the following modifications to support the closer guy anchor distance:
> 
> -Three levels of guys instead of two, at the 22', 44', and 66' foot levels.
> 
> -The short guys were increased from 1/4" EHS to 5/16" EHS.
> 
> -They guys anchor block was increased one size from the Rohn spec.
> 
> I would advise engaging a Professional Engineer to do the calculations and supply plans for permitting authorities.
> 
> -Tony, K1KP
> 
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