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by Retric 1065 days ago
It cost even less labor to use minimal bracing for strait walls, these are curved for athletics.

I suspect they are imitations of curved fruit walls popular in the 1600’s before greenhouses took off.

3 comments

I don't think this is the case.

A wavy wall with a wave amplitude of X has the same toppling resistance as a straight wall with buttresses on both sides of length x/2.

Assuming this stackoverflow answer is correct[1], the sine wave has (slightly) less bricks.

[1]: https://math.stackexchange.com/a/1500468

A single repetition of the wave is misleading. For N repetitions of the wave you need N + 1 buttresses not 2 N.

Also, while brick is stronger in compression a buttress increases toppling resistance in both directions so you need to consider material properties not just the geometry.

> A wavy wall with a wave amplitude of X has the same toppling resistance as a straight wall with buttresses on both sides of length x/2.

Where did you get that number from, and how does it change as you vary the distance between buttresses?

Assuming one pair of butresses (ie to prevent the wall toppling in each direction) per sine wave cycle.
But the math depends so strongly on how often the buttresses are needed, and the length of the buttresses, so you can't assume those things. The goal is a wall of equivalent strength, after all. If equivalent strength needs slightly less distance, or slightly smaller buttresses, the result could be thrown completely off in either direction.
"athletics" -> "aesthetics", right?
> these are curved for athletics.

Autocorrect strikes again.