Multilayer composite grid sound barrier and application of multilayer composite grid sound barrier

Abstract

The invention provides a multilayer composite grid sound barrier. The multilayer composite grid sound barrier is of a multilayer composite three-dimensional structure, and comprises surface layers, a plurality of middle sound isolation layers and light-weight sandwich layers, wherein the surface layers are positioned on the surfaces of the two sides of the multilayer composite grid sound barrier; the middle sound isolation layers are positioned between the two surface layers; the light-weight sandwich layers are positioned between the surface layers and the middle sound isolation layers and between the middle sound isolation layers and fill gaps; the surface layers and the middle sound isolation layers are made of sound isolation materials or composite sound isolation materials; the light-weight sandwich layers are made of sound absorption material. The sound barrier also comprises keels; the keels are positioned between the surface layers and the middle sound isolation layers, connect the surface layers and the middle sound isolation layers and connect the middle sound isolation layers to form a three-dimensional grid structure; and the keels positioned at the two sides of the each middle sound isolation layer are not overlapped with the extension lines of the keels arranged at the other side of the middle sound isolation layer. The multilayer composite grid sound barrier has excellent sound isolation performance; meanwhile, good heat insulation performance is realized; the structure is firm, simple and reasonable; the weight is light; the thickness is small; the installation is convenient; the production and manufacturing process is simple; and the cost is low. The invention also provides application of the multilayer composite grid sound barrier.

Description

technical field [0001] The invention relates to a sound insulation board, in particular to a multilayer composite grid sound insulation board, and also relates to the application of a multilayer composite grid sound insulation board. Background technique [0002] Due to the improvement of people's living standards, people pay more attention to the quality of life, and the requirements for the acoustic environment of living, working and living are constantly improving. [0003] With the continuous advancement of China's urbanization process and the increase of population density, land resources have become more precious. Due to the continuous improvement of construction technology and the continuous development of building materials and construction technology, more and more multi-storey and high-rise buildings have been developed. A large number of buildings adopt reinforced concrete structures, and are developing towards high-rise buildings and large bays. With the develo...

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Problems solved by technology

[0006] Although the above two patents have achieved the effects of heat insulation and noise reduction to a certain extent, the effects of heat insulation and noise reduction are not good, and they still cannot meet people's increasingly high acoustic requirements.

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