What are the functions of high-speed sound barrier?

Noise barriers are mainly used for noise isolation and noise reduction of noise sources such as expressways, expressways and elevated composite roads. It can be divided into reflective sound barrier with pure sound insulation and composite sound barrier with sound absorption and sound insulation. The latter is made of more effective sound insulation materials. It refers to the wall structure set beside railways and highways to reduce the influence of traffic noise on nearby residents. The sound barrier is also called the sound barrier. Inserting a facility between the sound source and the receiver makes the sound wave propagation have a significant additional attenuation, thus weakening the noise influence in a certain area where the receiver is located. This facility is called a sound barrier. It is divided into traffic noise barriers, equipment noise attenuation noise barriers, industrial boundary noise barriers, and highways and expressways where various types of noise barriers are most used.

Main classified editing

According to the classification of materials, sound barriers can be divided into the following categories: metal sound barriers (metal shutters, metal sieve holes), concrete sound barriers (light concrete, high-strength concrete), PC sound barriers, glass fiber reinforced plastic sound barriers, etc. Pc toughened plexiglass with a width of 2.7 meters has been formally produced in Wuxi, and the sound barrier factory has been successfully installed, greatly improving the visual and noise reduction effects.

According to different uses, it can be divided into several categories: railway noise barrier, highway noise barrier, urban landscape noise barrier, noise reduction noise barrier in residential quarters and so on.

Features of sound insulation and sound barrier products:

1, low cost: not only the production cost of the product is low, but also the weight of the product can greatly reduce the bearing load of the elevated light rail and the elevated road and reduce the engineering cost;

2. Strong wind load: high strength and light weight, which can meet the requirements of wind load under different climatic conditions in various regions of China;

3. Excellent acoustic performance: the average sound insulation capacity of the sound barrier is greater than 35dB, and the average sound absorption coefficient is greater than 0.84, which meets the requirements of various fields for sound barriers;

4. Good fireproof performance: Cementing materials belong to inorganic incombustible materials, and composite sound-absorbing glass wool, perlite and other materials also have good fireproof performance.

, so that the product has excellent fire resistance, belonging to the national A-class incombustible material;

5. Good durability: the sound barrier is waterproof, fireproof, corrosion-resistant and ultraviolet-resistant, and is not corroded by bad weather such as rain, snow, strong wind and sandstorm, with long service life;

6. Simple installation: the sound barrier is light in weight, can be assembled and constructed, has high efficiency and short construction period, and can save a lot of labor costs;

7. Beautiful and plastic: according to different needs, it can be combined with metal materials and light-transmitting materials, and can also be sprayed with various colors and patterns to meet the requirements of landscape decoration.

8. Energy-saving and environmental protection: the raw materials used for the sound barrier are nontoxic and harmless, and there is no need for high-temperature heating in the production process and no toxic gas release. It is an environmental protection product encouraged by the state;

9. Wide scope of application: sound insulation boards and sound absorption boards can be processed and produced according to different needs, and are suitable for transportation fields such as highways, light rails, railways, culverts and tunnels, and various industrial workshops and residential quarters.

Highway noise barrier consists of steel structure columns and sound-absorbing and sound-insulating screens. The column is the main stress component of the sound barrier, which is fixed on the embedded steel plate at the edge of the road collision wall or track by bolts or welding. The sound-absorbing board is the main sound-absorbing component, which is fixed in the H-shaped column groove by high-strength spring clips to form a highway sound barrier.