Vibration damping device of testing machine for buckling-restrained brace structure

A technology for anti-buckling bracing and structural testing, applied in the testing of machine/structural components, measuring devices, non-rotational vibration suppression, etc., can solve problems such as vibration, and achieve the effect of easy implementation

Inactive Publication Date: 2019-09-06
BEIJING UNIV OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In order to solve the vibration problem of the existing structural testing machine caused by the brittle failure of the specimen from the vibration source, the present invention proposes a vibration damping device for the anti-buckling support structure testing machine

Method used

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  • Vibration damping device of testing machine for buckling-restrained brace structure
  • Vibration damping device of testing machine for buckling-restrained brace structure
  • Vibration damping device of testing machine for buckling-restrained brace structure

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as figure 2 The large-scale structural testing machine system with vibration damping device shown in the figure includes foundation 1, frame 2, upper beam 3, loading cylinder 4, lower beam 5, top frame 6, key tooth 7, test piece 8, force sensor 9 and Anti-buckling support structure testing machine vibration damping device 10. The frame 2 is responsible for the loading reaction force and the lifting and positioning of the upper beam 3 and the lower beam 4, and is connected at the top by the top frame 6 to form a whole. The loading cylinder 4, the test piece 8 and the force sensor are installed between the upper beam 5 and the lower beam 3 9 is placed between the foundation 1 and the lower beam 5, and the load is applied through the loading cylinder 4. In the normal loading stage, the lower beam 5 of the testing machine is driven b...

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Abstract

The invention discloses a vibration damping device of a testing machine for a buckling-restrained brace structure, and belongs to the field of vibration damping control. The vibration damping device of a testing machine for the buckling-restrained brace structure comprises an upper end plate, a core material, a restraining member, an unbonded material and a lower end plate. The buckling-restrainedbrace is arranged between the lower cross beam of a structural testing machine and a base, the vibration damping devices of the testing machines for the buckling-restrained brace structures are symmetrically arranged around a test piece, and the vibration damping devices of the testing machines for the buckling-restrained brace structures and the test piece are stressed together until the testingmachine is unloaded. A force sensor is arranged at the lower end of the test piece to measure the load borne by the test piece. The vibration damping device of the testing machine for the buckling-restrained brace structure is arranged in a large-scale testing machine, so that the problem of vibration between the testing machine and the surrounding environment caused by brittle failure of the test piece can be avoided. The vibration damping device of the testing machine for the buckling-restrained brace structure is simple design and saves cost.

Description

technical field [0001] The invention relates to a vibration damping device for a buckling-resistant support structure testing machine, which is suitable for body vibration and environmental vibration caused by brittle failure of a test piece during the loading period of a large-scale structural testing machine, and belongs to the field of vibration damping control. Background technique [0002] With the gradual enlargement and complexity of building structures, in order to more accurately study the bearing capacity and material properties of test objects, large-scale or even full-scale test pieces are usually used as research objects, making large-scale structural testing machines an indispensable test equipment. Due to the brittle failure of the specimen during loading, the large-scale structural testing machine will cause severe vibration of the testing machine itself and the surrounding environment. The vibration of the testing machine will affect the normal trial of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00F16F15/02
CPCF16F15/02G01M99/00
Inventor 纪金豹王晨光刘佳航丁振
Owner BEIJING UNIV OF TECH
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