Three-Hinged Arch

Classic three-hinged arch structure. Introduces arch thrust and the role of the crown hinge.

Category: frame · Difficulty: Advanced

Solution

Support reactions (solver-verified)
Support	Rx (N)	Ry (N)	Mz (N·m)
A	-75	75	0
B	25	25	0

Open this example in StatIQ

All reaction values are computed by the StatIQ structural engine, not generated text. Signs follow the solver's convention: a positive R_y acts upward, a negative R_y downward; a positive M is counter-clockwise.