Component pressing and twisting experimental device and method thereof

Abstract

The invention relates to a device and a method for component compression-torsion testing, belonging to the technical field of architecture structure test. The device comprises a pedestal, a reaction beam, a reaction wall, a vertical force jack, a front clamp plate, a back clamp plate, a pure torsion loading beam, a loading beam and a horizontal force jack, wherein a component is fixed on the pedestal; the vertical force jack is connected at the lower surface of the reaction beam and corresponds to the component in position; the top of the component is tightly clamped between the front clamp plate and the back clamp plate; the loading beam is fixedly connected with the front clamp plate and the back clamp plate; one end of the pure torsion loading beam is articulated with the front clamp plate and the other end is fixedly connected with the reaction wall; one end of the horizontal force jack is articulated with the loading beam by a force sensor and the other end is fixedly connected with the reaction wall. In a test, the vertical force jack applies axial pressure to the component and the horizontal force jack applies horizontal force to the component to form the torque to the component. The device for component compression-torsion testing has simple structure and convenient assembly, can be used instantly after the assembly and can be used repeatedly.

Description

technical field [0001] The invention relates to an experimental device and method for torsion of concrete components or steel concrete components under the action of axial pressure, and belongs to the technical field of building structure tests. Background technique [0002] In building structures, components subjected to torsion are ubiquitous, but there are not many cases under the action of torsion alone, and most of them are in a compound torsion state. For example, curved bridges, curved balcony beams for theaters and stadiums, inverted L-shaped beams with asymmetrical sections, crane beams bearing horizontal braking forces, upper chords of brackets bearing different support reactions, upper chords of roof trusses, and frame edges Beams and transfer floor girders of super high-rise buildings are mostly in a composite torsion state under the joint action of bending moment, shear force and torque. Under the action of wind load and earthquake load, the failure of componen...

AI Technical Summary

Problems solved by technology

[0004] At present, there are few experiments to study the compression and torsion of components alone, and the experimental methods are relatively co

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