On top of a bunker we have make a contruction with HEA profiles. Those profiles are running from the center till 3 meters outside the tower base.

On those HEA profiles we put "stelcon plates" There are 2 by 2 meters and 15 cm high and about 1200 kilogram.

There are 3 stelcon plates on each tower leg.

The final result. A freestanding tower with a 180cm base and 24 meters high.

There is a video of the tower building. You can see more details about the construction in the video.