A Perfect Circular Foundation Ring
A ring-shaped trench has been lined with steel. The rebar that will attach to the dome’s structural steel is standing up along the inner circumference of the trench. The next step is to pour concrete into the trench and wooden forms which create a step up around the exterior perimeter. For this building, we will wait to pour the slab floor until after the dome structure is complete.
Image by Javier Figueroa
Sourced from Monolithic Commons
Posted to A Quick Look at Construction of a South Carolina Hoop Dome
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Image by Javier Figueroa from Monolithic Commons via Monolithic Dome Institute (CC BY-SA 4.0)