Sliding beam type low cycle repeated test device and operation method

Abstract

The invention discloses a sliding beam type low-cycle repeated experimental device and an operation method of the sliding beam type low-cycle repeated experimental device. The sliding beam type low-cycle repeated experimental device comprises a loading frame, a sliding beam, a slidable upper clamp, a slidable lower clamp, a vertical load applier, a vertical servo actuator, a horizontal servo actuator, a reaction wall, a base, an upper slideway, a lower slideway and an L-shaped fixing bracket, wherein the loading frame is mounted on the base and is fixed through the L-shaped fixing bracket, andthe loading frame is a framework in the shape of Chinese character 'Men'; the sliding beam is horizontally mounted on the loading frame, the vertical load applier is mounted on the sliding beam, thevertical servo actuator is mounted on the vertical load applier, the upper slideway is arranged at the lower end of the sliding beam, the top end of the slidable upper clamp is clamped in an upper slideway clamping groove and slides left and right along the lower end of the sliding beam, the lower slideway is mounted at the upper part of the base, and the bottom end of the slidable lower clamp isclamped in a lower slideway clamping groove and slides left and right. For the sliding beam type low-cycle repeated experimental device and the operation method of the sliding beam type low-cycle repeated experimental device, the horizontal displacement of the column top can be guaranteed, and meanwhile, the experiment of damage evolution under the action of earthquake of a column and a shear wallcan be performed.

Description

technical field [0001] The invention relates to a test device, in particular to a sliding beam test device for low-cycle repeated tests. Background technique [0002] In order to study the damage evolution process of reinforced concrete beams and columns under earthquake action, the low-cycle repeated loading test of reinforced concrete has always been a common test item in civil engineering teaching and research, and the low-cycle repeated loading test of reinforced concrete is helpful to restore the actual engineering. Earthquake load, so that the research on reinforced concrete walls and columns under earthquake can be carried out more effectively. However, the current low-cycle repeated loading test devices for reinforced concrete in colleges and universities are relatively bulky, single-function, expensive, and occupy a large area. The low-cycle repeated loading test of reinforced concrete is usually carried out on the reaction-loaded beam, the jack is used as the load...

AI Technical Summary

Problems solved by technology

[0003] When the reinforced concrete low-cycle repeated loading test is carried out on the reaction-loaded beam, since the reaction-loaded beam is fixed and cannot be moved, during the low-cycle repeated loading test on the specimen, the jack is in direct contact with the specimen, and it is difficult to Ensure the horizontal displacement of the top of the column, thus affecting the test results

The clamps at the top and bottom of the column have a small range of motion, so it is not possible to test the damage evolution of the shear wall under the action of an earthquake

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