Online buttress dam calculator to calculate intensity of normal stress on horizontal plane using normal stress formula.
The principal structural elements of a buttress dam are the water-supporting upstream face, or deck, and the buttresses.
Formula:
σx(max, min) = [N / A] × [(M×Y) / I]
where,σx = intensity of normal stress on horizontal plane
N = total vertical load on section (masonry + water)
A = sectional area of base
M = moment = (N×e)
e = eccentricity (distance from point of application to center of gravity of section)
Y = distance from center of gravity to most remote fiber
I = moment of inertia of horizontal section