The actual subject here is the tension load, the word "structure" is just the most convenient term for it.
(But in any case a hollow pyramid would certainly be under tension. You would need an arch if you wanted pure compression.)
The actual subject here is the tension load, the word "structure" is just the most convenient term for it.
(But in any case a hollow pyramid would certainly be under tension. You would need an arch if you wanted pure compression.)