ST 100.12 Two-Hinged Parabolic Arch, fixed end
To work with universal test frame. Parabolic arch; one end pivoted in ball bearings and fitted with an arm for applying and measuring moments and rotations. The other has similar arm but is pivoted in roller bearings on a track plate. Load hangers attached to the arch. Dial gauges for horizontal displacement, arch displacements, and end rotations.