began the rather complex concrete work in late September and did the
first pour on October 2, 1999. Because of the size of the
building and the beam construction which concentrates the loads at the
base of the beams, the foundation was very hefty. It started with
4'X4'X12" pads at each beam base (18 total). Then, 2'X2' columns
were formed on each pad (minimum height was slightly over 2' and the
longest was over 3' (variation due to the soil/rock conditions).
The front foundation was a wall that was 2' thick and an average depth
of over 2'
Then the floor was formed. It had turn down of
2' (12" wide) on the three sides and a pad thickness of 6".
It has 1/2 re-bar on 18" centers. I fabricated several chain tie
downs and two large I beams, all of which were formed into the
concrete. This will give me various options in the future.
I also laid hydronic heating tubing in the floor for future use in
heating the building.