Discussion in 'Ham Radio Discussions' started by K0BLR, Jun 6, 2021.
The specs on what the concrete base has to be
I’m taking the tower to SE GA
All concrete foundation requirements are clearly listed in the document I provided: That indicates the type of concrete, the dimensions for the excavation, and the type rebar (quantity and positioning) are all detailed right in that drawing.
Did you read it?
In SE Georgia, you could go with the 3' depth excavation as detailed in the Rohn document. This requires only very slightly less concrete, though, so I'd opt for the 4' deep excavation if possible. The "savings" with the 3' deep excavation is only about $50 or $75 worth of concrete, so it's not much to save.
Either way, all other details remain the same and are all very clearly outlined in the Rohn BX drawing I provided.
It's because not all rebar is "weldable". Welding can cause the rebar to become brittle. It has to do with the carbon content of the steel.
As a building inspector, it would fail because the registered design professional specifically forbade welding the rebar and embedments.
I put a Rohn HDBX-48 by the Rohn specs. It is the bottom six sections of your tower. You can see the story here:
It served me well.