I say "supported by drilled shaft type foundations" because I wasn't able to see the foundations (they are under the a deck) but I was told they were drilled shafts, I really don't have any further details on them.
If I had to guess I would think that the wood columns extend into the concrete...
The structure is free standing and is not connected back to a rigid structure, that is what had me concerned.
I'm not sure exactly what is meant by a pole structure but this particular roof is supported by a grid of 16 columns, 4 columns by 4 columns, the roof is sloped in one direction...
Sorry for the long delay, for some reason I was unable to get logged on for about a week, I sent quite a few e-mails to eng-tips support with no response, finally just joined under a different name. I just posted a .pdf of a few pictures to give a better idea of what's going on.
Hope the...