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