My cocktail party structural analysis is that an angular force on the rope
multiples the force. That is if you have a tight rope with a certain weight in
the middle, the actual tension on the rope is a high multiple of the weight (it
takes much more resistance in the horizontal direction to resist sagging.) So
you actually want the halo to bend quite a bit where the guys attach.
It's pretty easy to come by ropes of ~250 pounds at Home Depot. I even found
one rated around 400. The peace of mind is worth $14/yurt to me. (I'm figuring
50' for the halo; I'm using ratcheting tiedowns for guying.)
Cheers,
Steve
--
Abstainer: a weak person who yields to the temptation of denying himself a
pleasure.
--Ambrose Bierce
On Aug 21, 2012, at 11:46 AM, Robert Atkins <[email protected]> wrote:
> On Tuesday, August 21, 2012 9:06:30 AM UTC-7, Steve Upstill (Swifty) wrote:
>> Are you sure you want the halo to run through your rebar?
>
> Eh? I'm not running the halo through the rebar; the "tie downs" I refer to
> above run from the halo itself (which sits wholly on the roof a foot or two
> above the wall line) to the rebar.
>
> 95lb rope seems light to me too, that's why I'm asking.
>
> Cheers, Robert.
>
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