[TowerTalk] guyed tower reference?

Pete Smith n4zr@contesting.com
Mon, 06 Aug 2001 08:28:19 -0400


At 06:46 AM 8/6/01 -0600, n4kg@juno.com wrote:
>
>Crumpling may apply to VERY TALL towers like the
>1000 footers used by TV stations under SOME conditions.  
>I've NEVER seen it happen to Rohn Ham towers.  
>When the guys or guy anchors fail,
>THEY FALL OVER, STRAIGHT OUT to their FULL HEIGHT.
>
>On the other hand, there is nothing STRONGER, SAFER,
>or more COST EFFECTIVE than a PROPERLY GUYED
>Tower.
>
>Sorry to burst your bubble.

Does it have to be burst? 

If you were to separate the anchors for the top guys from those for the
other 2 sets, you could then demonstrate that a single guy failure can only
produce one of two scenarios -- if a top guy fails, the tower folds over at
the middle guy set, with the debris falling around the part of the tower
which remains standing; or if one of the middle or bottom guys fails, the
tower folds in the middle, but is tethered by the top guys which restrict
debris to a relatively small circle around the base.

The separation doesn't have to be very much -- in fact, the added guy rods
could probably go into the same anchor.



73, Pete N4ZR






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