Wave barrier structure with low-frequency ultra-wide attenuation domain and manufacturing method

Abstract

The invention discloses a wave barrier structure with a low-frequency ultra-wide attenuation domain and a manufacturing method. The wave barrier structure is formed by extending structural unit cells in the same horizontal plane in two mutually perpendicular directions and is designed below the ground surface around a building. Each structural unit cell comprises a depleted uranium block (1), a steel pipe layer (2) and a rubber layer (3), wherein the depleted uranium block (1) is a cube, the steel pipe layer (2) wraps the depleted uranium block (1), and the rubber layer (3) wraps the steel pipe layer (2). The seismic ultra-clever plate structure is not only suitable for a certain type of buildings in a certain area, but also can change the side length, thickness and other geometric parameters and density, Young modulus and other material parameters of all components and adjust the band gap width and position according to the site conditions, building environments, occupied area sizes, heights and other factors of different areas through comprehensive consideration, thereby protecting one or more buildings in different areas and at different heights.

Description

technical field [0001] The invention relates to a wave barrier structure with a low-frequency ultra-wide attenuation domain, which is a periodic arrangement structure with good attenuation effects on seismic Lamb waves and surface waves. Background technique [0002] Earthquakes not only affect buildings, but also civilian life. The damage would be multiplied if the earthquake hit centers such as nuclear power plants, hospitals, schools and military buildings. Among them, the seismic Lamb wave, which was originally considered to be Rayleigh wave, has a great influence on buildings under certain conditions. Building safety has the greatest impact. Low-frequency seismic Lamb waves and surface waves have the greatest impact on buildings in the frequency range of 0.1-20Hz, and the corresponding wavelength of seismic surface waves in this range is basically the same as the height of common buildings. When the seismic Lamb waves and surface waves reach the building, because the...

AI Technical Summary

Problems solved by technology

However, in the current research process, although the structure size is much smaller than that of the Bragg scattering structure, in practice, a larger structure size is still used to control low-frequency Lamb waves and surface waves, which is not only uneconomical, but also has low application.

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