Arch Dams Full Load Formula


Equation for calculate arch dams full load is,

H0 = pr - (pr / D) × 2φ × sin φ × ( t2 / 12 × r2)
M0 = - (pr - H0) × r × ( 1 - (sin φ / φ))
Hα = pr - (pr - H0) × cos φ
Mα = r × (pr - H0) × ((sin φ / φ) - cos φ)

where,
  • r - radius to the center line of the arch
  • p - normal radial pressure at the center line
  • t - horizontal arch thickness
  • φ - angle between the crown and abutment radii
  • D - lieu of the lengthy right-hand part
  • H0 - Thrust at crown
  • M0 - Moment at crown
  • Hα - Thrust at abutments
  • Mα - Moment at abutments