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Really quite ideal as it is now. I wouldn't try anything skinnier on it.
Would love to see it with 80mms, cough @tijs. -
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I'd assume loading both would make the curvature go to 0 as you'd be making the positive curve of the saddle flatten but only accentuating the negative curve. Can't imagine the negative curve bending to positive under loading (I know it can't but if that's our argument for saddles being stiffer...).
Alas, I'm sure it'll be covered in due course.
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Yeah, I took shell to exclude tension structures, rather thinking along the lines of concrete shells.
Yeah, classic numberphile video; where does it address whether saddles are better than domes, all I thought it said was that the Gaussian curvature of anticlastics are negative and synclastics are positive?
For some reason had it in my head that saddles where intrinsically more efficient a (concrete shell) structure than domes. Must be mistaken.
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