Height of 20 foot dome
Hello friends...what is height of 20 foot dome plz? Thx...Shelly, Riverside California, usa
domegaia last edited by
The height of your dome is your radius PLUS the height of the your compass arm/the equator's height off the ground.
A 20 foot dome with a compass set at three feet off the ground (what we usually do) will be 10 (radius) plus 3 (equator height) = 13 feet high.
That was very helpful... thank you so much!!!!
I think having 3 ft of just a cylindrical shape is useful. It is better than the walls caving in a little at the bottom because it weakens there.
@KnowItAllTeen You bring up a rather controversial issue among dome designers. It seems to come down to form vs function. Engineering will always choose the cylindrical base; architecture will always demand the untainted sphere.
Domegaia happens to be led by an architect therefore their domes are purely spherical, always, no exception. My friend is a retired engineer - his dome uses the cylindrical base.
I have yet to hear of a pure sphere aircrete dome developing cracks at the equator. But that is not to say that I won't at somepoint in the future.