A test device, system and method for simulating long-term axial load and impact coupling disasters of components

Abstract

The invention belongs to the technical field of test equipment, and particularly relates to a test device, system and method for simulating a long-term axial load and impact coupling disaster of a component. The test device comprises an impact test device, an axial force loading test device and a long-term axial load loading device. The impact test device comprises a drop hammer test machine, a test piece support, a test piece, a counter force frame, a rigid plate, a rigid plate support, a common nut and a ground bolt screw. The drop hammer test machine is mainly composed of a peripheral steelframe, an electric hoist crane, an unhooking device, a hammer body, a hammer head and a drop hammer protection frame. The axial force loading device comprises an axial force sensor, a spring set, a hydraulic jack and a spring support. According to the test device, the practical situation of the component under the long-term axial force and impact coupling can be simulated, namely, a long-term horizontal axial load is firstly applied, and after the load is kept for a certain preset time, the long-term loading device is directly installed on the impact test device to perform a test under the long-term axial load and impact load coupling.

Description

technical field [0001] The invention belongs to the technical field of component disaster simulation devices, and in particular relates to a test device, system and method for simulating components subject to long-term axial load and impact coupling disasters. Background technique [0002] In the past ten years, in order to meet the needs of transportation and improve people's quality of life, my country has vigorously developed bridge projects and high-rise buildings. More and more viaducts appear in the city, and the accidents of viaduct piers being hit by cars continue to occur. According to statistics, more than 50% of the viaduct piers in Beijing have been hit by super-high vehicles. At the same time, ships hit The pier of the bridge, the situation that the plane hits the building also happens from time to time. However, in actual engineering, building structural components not only have to bear earthquake, impact, and impact loads, but also need to consider the situat...

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Problems solved by technology

[0003] At present, there are devices that apply long-term axial loads to components, but there is no test loading device that can realize components under the combined action of long-term axial loads and impact loads.

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