Seismic array of underwater earthquake simulation vibrostand

Abstract

The present invention discloses a seismic array of an underwater earthquake simulation vibrostand. The seismic array comprises a seismic array pedestal arranged on a power base, and a deep pool arranged on the seismic array pedestal. Two vibrostand surfaces are arranged in the deep pool. The lower parts of the vibrostand surfaces are provided with a horizontal actuator, a vertical actuator and a guide device arranged via a hydrostatic back-up. One side of the deep pool is provided with a reaction wall, and the other side of the deep pool is provided with an oil transmission pipeline for connecting an oil pump station with an accumulator group. The inner side thereof is provided with a wave maker group. The bottom of the reaction wall and the lower part of the deep pool are respectively provided with manholes. According to the invention, the dynamic test on large engineering structure under the coupling excitation effect of waves, the water flow and the earthquake is realized. meanwhile, the coupling effect of multi-point and multi-dimensional earthquake and wave power is realized. The seismic array is long in period, large in displacement, good in high-frequency seismic property and higher in operability. The synchronous / asynchronous control of two vibrostands, the generation of waves and seawater, and the synchronous / asynchronous control of the vibrostand seismic array excitation are realized.

Description

technical field [0001] The invention relates to civil engineering, water conservancy and ocean engineering technology, more specifically, the invention relates to an underwater seismic simulation shaking table array. Background technique [0002] In 1970, the University of California, Berkeley built the world's first earthquake simulation shaking table, which opened a new chapter in the physical test simulation of engineering seismic research. So far, there are more than 60 single shaking tables in the world, mainly distributed in Japan, China and the United States, among which Japan has the largest scale and the largest number of earthquake simulation shaking tables. [0003] my country began to develop earthquake simulation shaking tables in the early 1980s. In 1985, my country's first large-scale three-direction six-degree-of-freedom seismic vibration table (5m×5m) was built by the China Institute of Water Resources and Hydropower Research. The Institute of Engineering ...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the above existing technical deficiencies, and provide an underwater seismic simulation shaking table array for this purpose, thereby solving the problem that the existing earthquake simulation seismic table array cannot simulate waves, currents, etc. Problems in the Dynamic Test of Large-Scale Engineering Structures Under Water Flow Coupled Earthquake Excitation

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