🏛️ Aqueduct Pier: Granite Base Stress, Wind, Earthquake and the Middle Third (2D)

Side view of one tapered granite pier of a Roman aqueduct carrying arches, a deck and a water channel, with wind and an earthquake coefficient pushing sideways. See where the resultant force meets the base, the stress under the base, whether the pier stays inside its middle third, and the overturning and sliding factors. The weight integral, the wind moment, the stress block and the middle-third limit are checked numerically, with four in-page numerical checks.