[TowerTalk] minimum guy radius

Jim Lux jimlux at earthlink.net
Thu Oct 31 09:18:57 EDT 2013


On 10/30/13 12:27 PM, Greg Kozisek wrote:
> 235' tower with anchors at 100', three guy levels. Ever heard of such a thing? Is it possible? Oversized or undersized wires? I haven't seen it, but it sounds bizarre to me.
>
Lots o' tension in the guys under load, but hey, anything is possible.
23 degrees between guy and tower, so the tension in guy is 2.5 times the 
horizontal load.  Compared to the more usual 45 degrees and 1.4:1 ratio 
between horizontal load and tension

If you think about it, there's sort of a continuum between "big heap of 
dirt" to "pyramid" to "guyed tower" to "self supporting tower". It's all 
about how you handle the tension loads on the upwind side, and the 
compression loads on the downwind side.

  And not all the designs are successful.. sometimes the loads are a bit 
too high (Pyramid at Meidum), or exceed the design limits (Washington 
monument).  Sometimes it works ok (Eiffel tower, CN tower)


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