Qingdao Taicheng Transportation Facilities Co., Ltd
The first manufacturer of exporting all guardrail in China
Qingdao Taicheng Transportation Facilities Co., Ltd. is a technological innovation enterprise invested by Henger Group. Its headquarters is located in Jinkou Industrial Park, Qingdao. Taicheng Transportation has an innovative scientific research team, advanced manufacturing technology, first-class production facilities, and perfect testing methods. , reliable product quality, enthusiastic after-sales service, devoted to the great cause of improving China's road safety.
Noise Barriers/sound barriers Specifications:
Material: Stainless steel sheet, mild carbon steel sheet, aluminum steel sheet, galvanized sheet.
Metal plate Thickness: 0.5mm-1.2mm.
Barrier forming thickness: 80mm, 100mm, etc.
Panel thickness: 4-20cm(as per request)
Panel size: Length: 2.0-3.0m/piece. Height: 0.5m-1.0m/piece
Popular size: 2500x500x80mm, 2500x500x100mm, 2000x500x50mm etc.
Hole type: Round hole and louver.
Barrier type: Top arc noise barrier wall, big arc noise barrier wall, knuckling noise barrier wall, top knuckling noise barrier, vertical noise barrier wall.
Sound barriers are mainly used along railways and highways, and sound barriers are mainly used for sound insulation and noise reduction of highways, elevated composite roads, urban light rail, subway and other traffic and municipal facilities to control the impact of traffic noise on roads. Near the city, it can also be used for sound insulation and noise reduction of noise sources such as factories.
Sound waves are essentially vibrations that travel through a medium (like air) as pressure waves. When a car zooms by on a highway, it creates these vibrations. These waves move outward in all directions, and when they reach our ears, they are translated into what we perceive as sound.
The loudness or intensity of sound is measured in decibels (dB). The closer one is to the source of the noise (e.g., a busy highway), the louder the sound. As the distance from the sound source increases, its intensity decreases. However, without any obstruction, sound waves can travel long distances and still be quite audible.
The main purpose of the sound barrier is to effectively reduce noise. But how do engineers know if the barrier is successful? Having quantifiable metrics to measure the efficiency of these barriers is critical. This ensures that they are not only functional, but also optimized for maximum sound attenuation.
The performance of sound barriers is usually assessed through a combination of laboratory tests and field measurements. The most commonly used metric is the Sound Transmission Rating (STC), which assesses how well the barrier blocks sound. The higher the STC, the better the performance. In addition to the STC, the noise reduction factor (NRC) can also be used to measure the absorption mass of the barrier. The NRC gives materials a rating between 0 (perfect reflector) and 1 (perfect absorber).
Factors that affect performance
Height: A basic principle is that the higher the barrier, the more noise it can block. However, building extremely high barriers is not always feasible for structural and aesthetic reasons.
Density: Denser materials tend to block sound more effectively because they provide greater resistance to the propagation of sound waves. This is why concrete, a dense material, is often used as a sound barrier.
Surface texture: A rough or uneven surface scatters sound waves, resulting in lower noise levels on the other side of the barrier. This is why some barriers contain designs or patterns on their surface.
Distance from noise source: The closer the barrier is to the noise source, the more effective it is likely to be. This is because it blocks sound before it has a chance to travel and diffract.
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