Comprehensive system of horizontal two-way earthquake simulation shaking table

Abstract

The invention provides a comprehensive system of a horizontal two-way earthquake simulation shaking table. The comprehensive system consists of a table surface unit of the well-shaped rail beam-stiffened horizontal two-way earthquake simulation shaking table, a support operation mechanism unit of the horizontal two-way earthquake simulation shaking table and a vibration exciter connecting device of the horizontal two-way earthquake simulation shaking table; the table surface unit has light self-weight and large effective load, the large internal damping causes small local vibration and low noise; the vibration exciter connecting device of the shaking table has no geometric coupling, easy ensured rigidness of a connector and small extra work of the vibration exciter; the support operation mechanism unit carries a heavy model test piece, the table surface of the table surface of the shaking table can slide in any direction on the horizontal plane, the operation friction is small and the horizontal displacement ability of the shaking table is not constrained by overturning moment. The maximum displacement which can be achieved by the horizontal two-way earthquake simulation shaking table is that X is equal to plus or minus 300mm and Y is equal to plus or minus 300mm, and the horizontal two-way earthquake simulation shaking table has simple structure, low cost, small energy consumption, high energy efficiency, easy upgrade and ability of realizing the further development of loading and displacement abilities.

Description

technical field [0001] The invention relates to a comprehensive system with a horizontal two-way seismic simulation shaking table. Background technique [0002] The horizontal two-way seismic simulation shaking table comprehensive system usually consists of the earthquake simulation shaking table top, the exciter connecting device, and the supporting and operating mechanism. The table tops of earthquake simulation shaking table include: reinforced concrete structure table, steel welded structure table, aluminum alloy or magnesium aluminum alloy casting structure table. The earthquake simulation shaking table table top of reinforced concrete structure has a small effective load due to its own weight, and the low bending frequency makes the whole system of the shaking table less frequently used. The simulated frequency band often cannot meet the needs of earthquake simulation research, and it is rarely used now. The aluminum alloy table is used in the medium-sized earthquake ...

AI Technical Summary

Problems solved by technology

However, the disadvantages of the alloy table are: the cost is high, and the internal damping of the table is small. When the vibrating table runs above 30Hz, it will cause high-frequency local vibration of the thin plate composed of the table body, and the noise is relatively large.

[0005] To sum up, the existing horizontal two-way seismic simulation shaking table table and support and guidance system, due to the lack of structure itself, affects the working performance of the earthquake simulation shaking table to a certain extent, and it is not easy to expand functions and upgrade equipment

Moreover, the processing technology is complicated, and the cost and maintenance cost are very high. The cost of the existing horizontal two-way seismic simulation shaking table is usually as high as one million or even tens of millions.

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