Jim Lux wrote:
> 2) A more fundamental question would be is there any configuration (i.e.
> combination of stiffness and strength) where the guyed column would fail and
> the canteliever beam would not, with the same lateral load. This would
> answer the "it can't possibly happen question", since all you need is one
> example where a plausible structure will fail with guys but not without.
This is the question I'm interested in. Because if it turns out that
it's difficult to design even a ridiculous structure that is weakened
by guys, some good light will be shed.
> This is a bit tricky. There are a raft of handy formulas and rules of thumb
> for things like steel tube with uniform diameter, but I suspect that a
> lattice work tower is pretty far from that, and some fundamental assumption
> in the rule of thumb will be violated.
It seems to me that a long slender tube would be a good place to start.
I can picture a test jig pretty easily for a little empirical testing.
Steve K8LX
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