[TowerTalk] DX Engineering 66-Foot Vertical?
richard at karlquist.com
Mon Mar 16 17:12:18 PDT 2009
Hank Lonberg wrote:
> steel transmission and substation structures is 1.5 x the
> larger diameter( ASCE Manual No. 72). This assures full
> transfer of the bending moment and shear via contact stresses
In my extensive experience with irrigation tubing, I have
found this to be quite adequate. Plenty good enough that
if you stress the joint, the tubing will buckle instead of
slipping out. In terms of things to worry about, this
is not even in the top ten for me.
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