Wednesday, October 10, 2012
In the picture below you can see that outside the walls I stepped out a horizontal brick and then made vaults on top, then again and agin. This allowed me to get a 30 cm overhang over my walls.
Now both buildings have small cracks as you see in the first picture, all in the middle of the wall and ending in the vaults above the wall. Not every one, and only two go into the brick and then not all the way through.
Most tend to crack where the brick is stepped out in the midle of each side.
the stepped out vaults add weight and further down and so change the line of thrust
-The plaster behaves differently than the bricks, and it is very thin, so the line of thrust could move out of the plaster
-the wall makes different dynamics.