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4 | December 19, 2009 |
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Pendentive Gazebo
Since I've had no commissions lately,I kicked this out in the last three days tapping my stockpiled materials. All recycled steel.
Height to top is 12.5 feet.
Diameter of rings 9 ft. 3 inches.
The rings are 3x3 angle and were rolled "mistakes " from the rolling mill. I bought a truckload a couple of years ago and am slowly making my way through the stack.
Only 12 bolts hold the whole structure together. It is quite stout. One can easily climb all over it with no loss of structural integrity.
Notice the pre-drilled holes in the top ring. That is for mounting add-on trellises for planting vines at each of the "corners".Not sure yet what the trellises will look like ...
The little ball finial on the top is just like:
[link]
except it's made of steel instead of stainless steel.
This shape is the spherical representation of cubic symmetry.
The triangular shapes at the corners where the rings meet are called pendentives and were first used as a device for supporting masonry domes during the roman empire. But it was the later Byzantine architects that perfected it's use. One of the finest examples being the giant Ottoman Mosque in Istanbul called Hagia Sofia. The bubble (or dome) is one of the strongest forms in nature with one of the best ratios of covering the largest volume with the least amount of surface area. This prosaic example illustrates one of Nature's most efficient examples of the conservation of material...
Height to top is 12.5 feet.
Diameter of rings 9 ft. 3 inches.
The rings are 3x3 angle and were rolled "mistakes " from the rolling mill. I bought a truckload a couple of years ago and am slowly making my way through the stack.
Only 12 bolts hold the whole structure together. It is quite stout. One can easily climb all over it with no loss of structural integrity.
Notice the pre-drilled holes in the top ring. That is for mounting add-on trellises for planting vines at each of the "corners".Not sure yet what the trellises will look like ...
The little ball finial on the top is just like:
[link]
except it's made of steel instead of stainless steel.
This shape is the spherical representation of cubic symmetry.
The triangular shapes at the corners where the rings meet are called pendentives and were first used as a device for supporting masonry domes during the roman empire. But it was the later Byzantine architects that perfected it's use. One of the finest examples being the giant Ottoman Mosque in Istanbul called Hagia Sofia. The bubble (or dome) is one of the strongest forms in nature with one of the best ratios of covering the largest volume with the least amount of surface area. This prosaic example illustrates one of Nature's most efficient examples of the conservation of material...
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