The higher the truss support the less compression will be put on the element
for any given vertical load (lift) at the outer attachment point.
I would use some sort of clamp, with an eye, for the attachment, so as not to
weaken the element. remember that the attachment point becomes a
high stress point (bending) and will fail at some ice load.
The perfect solution would be a sleeve with tapered wall thickness, so there
could be some bending which would spread the stress and move the failure point
outward.
Remember, the truss support member will be trying to “fall over”, so the
attachment to the boom must provide the stability to hold the support
member vertical.
WL
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|