Parameters
Arch Shape
Load Type
Span L
20.0 m
Rise f
5.0 m
UDL w
10.0 kN/m
Catenary Comparison
Key Formulas
3-hinged arch (UDL):
$$H = \frac{wL^2}{8f}$$ $$V_A = V_B = \frac{wL}{2}$$Thrust line ordinate:
$$y_{TL}(x) = \frac{M_0(x)}{H}$$—
Horiz. Thrust H (kN)
—
Vertical Reaction VA (kN)
—
Max Normal Force N (kN)
—
Max Bending Moment (kN·m)
Arch axis
Thrust line