Totally-closed sound barrier

Abstract

The totally-closed sound barrier comprises a set of door-shaped frames which are sequentially fixed to a ground foundation front and back, each door-shaped frame comprises a left H-shaped steel stand column and a right H-shaped steel stand column which are vertically arranged, the tops of the two H-shaped steel stand columns are connected with an arched H-shaped steel top beam, and at least one set of cross beams I are transversely arranged between the front H-shaped steel stand columns and the rear H-shaped steel stand columns which are adjacent front and back; at least one group of cross beams II are transversely arranged between the front and back adjacent H-shaped steel top beams; a group of transparent sound barrier plates are arranged between the front and back adjacent H-shaped steel stand columns, a group of foamed aluminum sound barrier plates are respectively arranged above and below the transparent sound barrier plates, and the foamed aluminum sound barrier plates and the transparent sound barrier plates are inserted into flanges of the H-shaped steel stand columns; a transparent top plate is arranged at the top of the sound barrier; damping devices I are obliquely arranged on the left and right side surfaces of the sound barrier; the totally-closed sound barrier is good in sound absorption and insulation effect, excellent in energy absorption and fireproof performance and long in service life and has the damping function.

Description

technical field [0001] The invention relates to the field of sound barriers, in particular to a fully enclosed sound barrier. Background technique [0002] Fully enclosed sound barriers are mainly used on both sides and above of railways, expressways, and viaducts that are close to residential areas, schools, and hospitals. They have the advantages of good sound insulation and noise reduction effects and good sealing performance. In the prior art, fully enclosed The sound-absorbing and sound-insulating materials of type sound barriers are mainly polyester fiber, glass fiber, polyurethane foam, etc. During use, a large amount of fiber dust will be generated, which will pollute the environment and have defects of poor sound-absorbing and sound-insulating effects; and the above-mentioned materials have poor weather resistance and short service life. , the sound insulation material can only be replaced with a new sound barrier after the service life is reached, and it cannot be ...

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Problems solved by technology

[0002] Fully enclosed sound barriers are mainly used on both sides and above of railways, expressways, and viaducts that are close to residential areas, schools, and hospitals. They have the advantages of good sound insulation and noise reduction effects and good sealing performance. In the prior art, fully enclosed The sound-absorbing and sound-insulating materials of type sound barriers are mainly polyester fiber, glass fiber, polyurethane foam, etc. During use, a large amount of fiber dust will be generated, which will pollute the environment and have defects of poor sound-absorbing and sound-insulating effects; and the above-mentioned materials have poor weather resistance and short service life. , the sound insulation material can only be replaced with a new sound barrier after the service life is reached, and it cannot be recycled and reused, which leads to an increase in the use cost of the sound barrier. It is not suitable for fully enclosed sound barriers because of its rapid damage and lack of fire resistance. In addition, due to its large overall size and good sealing performance, fully enclosed sound barriers are not suitable for high-speed trains when encountering strong winds. Outdated, it is easy to cause slight shaking, but the fully enclosed sound barrier in the prior art does not have the shock absorption function. With the extension of the use time, it is easy to cause the stability of the sound barrier structure to deteriorate and even some structural components to fall off, which increases the noise. Safety Risks During Barrier Use

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