Continuous collapse dynamic test device based on directional sliding support

Abstract

A continuous collapse resistance dynamic test device comprises a horizontal reaction frame (1), a vertical counter-force frame (2), a directional sliding support (3) and a loading part (4). The horizontal reaction frame (1) is fixed with a foundation beam of a laboratory; the horizontal reaction frame (1) is used for fixing the position of the directional sliding support (3); the vertical reaction frame (2) is fixed with a foundation beam of a test room; the vertical reaction frame (2) is used for fixing the loading part (4); and a brake steel plate is arranged in the sliding support (3) and used for reducing the impact effect of a power test on the ground. By introducing the sliding support and utilizing the symmetry principle of the structure, a symmetrical structure or a test piece can be tested in half, and the purposes of reducing test consumables and reducing test cost are achieved. According to the invention, through the combination of inserting the brake steel plate into the bottom of the sliding support and arranging the damper spring at the bottom of the weight box, the destructiveness of the dynamic test can be greatly reduced.

Description

technical field [0001] The invention belongs to the field of disaster prevention and mitigation of building structures, and relates to a continuous collapse dynamic test device based on directional sliding bearings, which can be used for various dynamic tests in structural engineering. Background technique [0002] With the development of society, people pay more and more attention to the safety and robustness of structures and put forward higher requirements for them. Progressive collapse refers to the fact that under normal service conditions, the structure is partially damaged due to accidental events, and the damage gradually spreads among the components, eventually leading to the collapse of a large area of ​​the structure or the overall collapse of the structure. Since the progressive collapse of structures is often accompanied by serious casualties and property losses, the design of progressive collapse resistance of structures has received extensive attention and att...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a dynamic test device with strong practicability and can effectively reduce the test cost, so as to solve the problems of high test cost, insufficient test site and limited popularization of dynamic test because of its great damage to the test site

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