I tried wvasello idea of suspending a 10' bar from one of beams in my screen porch. I haven't built the tripods yet at least this way I could test out the bar. I was hoping to develop a bar that could also be used as two 5' upright poles that could be staked out with the hammock between. I used a combination of 1 1/4" pvc with 1" pvc nested inside. This worked for the upright poles. Not so good for the horizontal beam. I dven tried adding 1" wooden dowel in the center of the beam. Still not anywhere close. As I slowly added my 225# self, the beam quickly started to bow upward. It does work fine for my 85# 11 year old. (he plans to sleep there tonight to test my new PLUQ.)
The on thing I am noticing through my testing and the descriptions other are saying, there is more than just linear compression on the horizontal beam. How much there is I don't know. I studied art in college not engineering.
Life is Good!
Hammocks * Scouts * Kites