Year1
- 声屏障：
- 50cm-100cmx200cm-400cm
Sound barriers can be divided into the following categories according to material classification: metal sound barriers (metal louvers, metal mesh holes) endurance board sound barriers, fiberglass sound barriers, etc.
Sound barriers are mainly used on highways, It can also be used for sound insulation and noise reduction in transportation and municipal facilities such as railways, highways, elevated composite roads, urban light rail subways, and controlling the impact of traffic noise on nearby urban areas. It can also be used for sound insulation and noise reduction in factories and other noise sources.
Sound barriers are divided into reflective sound barriers that are pure sound insulation and composite sound barriers that combine sound absorption and sound insulation. The latter is made of more effective sound insulation. Most sound barriers use a combination of sound absorption and sound insulation products. This type of product is characterized by targeted control of the generation and transmission characteristics of road noise. For example, the friction sound between cars and roads or the friction between locomotives and tracks in the lower part of the road has the characteristic of diffracting through the upper part of the screen. Therefore, in the design, a structure with upper and lower sound absorption and middle sound insulation is adopted, which can effectively reduce the diffraction sound barrier of noise. The use of transparent reflective sound insulation panels in the middle can effectively interrupt the propagation path of sound waves and also provide drivers and residents with a broad vision environment. In the field of architectural acoustics, acoustic management is used to control the reverberation time and indoor sound environment to meet the requirements of professional venues
The general principles for selecting sound barrier materials are good noise reduction performance, safe and reliable structure, economical material price, low installation cost, and durability , long service life, landscape coordination, beautiful appearance, etc. The specific instructions are as follows:
Large sound insulation: the average sound insulation should not be less than d
High sound absorption coefficient: the average sound absorption coefficient should not be less than.
Weather durability: the product should be water-resistant, Heat resistance, UV resistance, no performance degradation or quality abnormalities caused by changes in rain temperature. The products are made of aluminum alloy coiled sheets, galvanized coiled sheets, glass wool, and steel columns with galvanized surface treatment and anti-corrosion period of more than 10 years.
Beautiful: You can choose from a variety of colors and shapes to coordinate with the surrounding environment to form a beautiful landscape.
Economic: Prefabricated construction improves work efficiency, shortens construction time, and saves construction costs and labor costs.
Convenience: It is easy to install and maintain in parallel with other products and is convenient to update.
Lightweight: The sound-absorbing panel series products are light in weight, which can reduce the load-bearing load of elevated light rails and elevated roads and reduce structural costs.
Fire protection: The use of ultra-fine glass wool fully meets the requirements of environmental protection and fire protection regulations due to its high melting point and non-flammability.
High strength: Taking into account the different climatic conditions in various regions of my country, the virtual wind load is fully considered in the structural design. The grooves are pressed through the line to add strength.
Waterproof and dustproof: The material design fully considers waterproofing and dustproofing. Its sound absorption performance will not be affected in a dusty or rainy environment. Dust removal and drainage measures have been set up in the structure to avoid water accumulation inside the components. Micro-perforated resonant cavity sound absorption does not affect the sound absorption performance in rainy environments, and is particularly effective in reducing mid- and low-frequency noise.
Durable: The product design has fully considered the wind load on the road, the impact safety of traffic vehicles and the full-gas fake open-air anti-corrosion. The products are made of aluminum alloy coils, galvanized coils, glass wool, and steel columns with galvanized surfaces. During the warranty period, it will not corrode or deform, and its sound absorption and sound insulation effects will not be reduced.
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