Thursday, February 17, 2011

Anchor bolts and truss supports

The stability of the greenhouse will depend upon the 1/8" cables running along the length of the structure.  So, in order to have a secure anchor for these cables, we made up some steel anchor bolts and then buried them in concrete.

These are the eye bolts that we fashioned from 1/2" round stock.

We installed 10 of the anchor points at a distance of 4 meters from the ends of the greenhouse.

The next job was to cut and weld together Y-shaped supports to connect the posts with the roof joists.  The hardest part of this job was cutting the 2"x2"x3/16" angle into pieces with a hacksaw. 

Leonardo cutting the big angle with a hacksaw.

Then Grant welded the supports together, getting some good practice using E7018 welding rod.  We don't usually get to weld material this thick, so it was a treat not to have to worry about melting through the steel.

 The beads were pretty nice after  making 8 of these supports...

Here are the finished products, stacked upside down from the orientation they will be installed.

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