Composite sound absorbing and insulating barrier and installation method thereof

Abstract

The invention discloses a composite sound absorbing and insulating barrier. The composite sound absorbing and insulating barrier comprises a sound absorbing combined module, the sound absorbing combined module comprises an aluminum fiber microporous plate, and a waterproof and breathable du pont membrane, a carbon fiber sound absorbing cotton, an aluminum silicate acoustic baffle and a galvanized sheet shell are sequentially arranged on the aluminum fiber microporous plate. The composite sound absorbing and insulating barrier further comprises a sound absorbing combined module mounting bracket, the sound absorbing combined module mounting bracket comprises a plurality of mounting units composed of H-shaped steel, each mounting unit comprises the H-shaped steel on the left side, the H-shaped steel on the right side and beams on the upper portion and the lower portion, the mounting units are arranged on the upper row and the lower row, and a PC transparent screen is arranged between the mounting units on the upper row and the lower row. According to the composite sound absorbing and insulating barrier, the way of noise transmission is effectively blocked, the purpose of good noise governance is achieved, the field of vision cannot be blocked, after double sound insulation, the vibration effect is reduced, and the noise reduction effect is improved.

Description

technical field [0001] The invention relates to sound-absorbing and sound-insulating technology, in particular to a composite sound-absorbing and sound-insulating barrier and an installation method thereof. Background technique [0002] Noise barriers are mainly used for sound insulation and noise reduction in transportation and municipal facilities such as expressways, elevated compound roads, and urban light rail subways, to control the impact of traffic noise on nearby urban areas, and can also be used for sound insulation and noise reduction in factories and other noise sources. In the prior art, the top of the noise barrier is made of non-sound-absorbing material, which leads to poor sound insulation performance of the noise barrier, and no sealing measures are taken between the bottom and the foundation, which is prone to sound leakage and reduces the sound insulation effect. In addition, the sound barriers in the prior art mainly use perforated galvanized steel panels...

AI Technical Summary

Problems solved by technology

Although the material structure of this sound barrier can achieve the effect of sound absorption, the relative cost is relatively high. From an economic point of view, it is not the most scientific choice.

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