Three Hinged Arch Apparatus

The two-hinged arches are formed out of mild-steel flat of rectangular section. The arch is supported at one end and at the other end ball-bearings are provided which run on a smooth block. Load hangers are provided for loading.

Three-hinged arch machined from Aluminium casting is provided in pieces and resembles bridge deck. Combining two pieces by means of a central pin can form the symmetrical or unsymmetrical arch. One end of the arch is supported by a bracket fitted to the universal frame, the other end is provided with a roller support, which runs on a smooth block. The horizontal thrust is measured by means of a dial gauge, which ensures that the arch end can be brought to its original position. The load required to bring the end to its initial position is measured by spring balance and gives the horizontal thrust.

SPECIFICATIONS
1. Parabolic arch with span 1000mm.
2. Semicircular arch with span 750 mm.
3. Symmetrical & unsymmetrical three-hinged arch.
4. Weight set with load hangers.
5. Spring balance to measure horizontal thrust.
6. Dial gauge with stand.