Table 3: Forces calculated at the key positions of each arched structure.

Curve typeQuantity
Vertical displacement at the crown (mm) Bending moment (kN·m) Shear force (kN) Axial force
(kN)
CrownFootCrownFootCrownFoot

Circular arc27.853703824120598211221320
Parabola
 Type I8.936811738119441811061573
 Type II3.62669110711942907661389