Horizontal power test device

Abstract

The invention relates to the technical field of structural tests in structural engineering, in particular to a horizontal power test device which is used in a multi-point input power test of a large-span structural model. In the horizontal power test device, a horizontal sliding rolling shaft is fixed on a rigid table surface; a slidable plate is arranged on the horizontal sliding rolling shaft, and is connected with the loading end of an electrohydraulic servo actuator by a hinge; the fixed end of the electrohydraulic servo actuator is connected with a counter-force member; and the electrohydraulic servo actuator is arranged in the motion direction of the horizontal sliding rolling shaft. In the horizontal power test device, the power test of the structural model which makes horizontal one-way translational motion can be realized by using the existing test equipment and other devices which are easy to manufacture in a laboratory with an ordinary structure, and the multi-point input power test of the large-span structural model can be realized by using a plurality of simple horizontal power test devices.

Description

technical field [0001] The invention relates to the technical field of structural engineering structural testing, in particular to a horizontal dynamic testing device used in multi-point input dynamic testing of large-span structural models. Background technique [0002] The shaking table has been widely used in structural seismic tests, and it is the most beneficial tool for studying the effect of earthquakes on structures. However, the vibration table takes up a lot of space, is expensive, and requires high technical requirements for operation and maintenance. Many structural laboratories in China have not been able to set up a vibration table, so dynamic tests cannot be performed. In the experimental research on the seismic performance of structures, pseudo-static tests or pseudo-dynamic tests have to be used instead. As we all know, there are some differences between these two types of tests and real dynamic tests, for example, the time correlation of mechanical propert...

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Problems solved by technology

As we all know, there are some differences between these two types of tests and real dynamic tests, for example, the time correlation of mechanical properties of materials cannot be considered, and the damping effect of structures cannot be truly reflected.

In addition, if the multi-point input dynamic test of the large-span structural model is to be carried out, a single shaking table cannot do it. At this time, a larger-scale shaking table array is required, so the investment required is relatively higher than that of a single shaking table. will multiply

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