声屏障是指在声源和接收者之间插入一个设施，使声音传播有一个显著的附加衰减，从而减弱接收者所在的一定区域内的噪声影响，这样的设施就称为声屏障。
声屏障主要用于高速公路、高架复合道路、城市轻轨地铁等交通市政设施中的隔声降噪、控制交通噪声对附近城市区域的影响，也可用于工厂和其它噪声源的隔声降噪。
声屏障主要由钢结构立柱和吸隔声屏板两部分组成，立柱是声屏障的主要受力构件，它通过螺栓或焊接固定在道路防撞墙或轨道边的预埋钢板上;吸隔声板是主要的隔声吸声构件，它通过高强弹簧卡子将固定在H型立柱槽内，形成声屏障。声屏障的设计已较为充分地考虑了高架高速道路、城市轻轨、地铁的风载、交通车辆的撞击安全和全天候的露天防腐问题。它外形美观大方，制作精致，运输、安装方便，造价低，使用寿命长，特别适用于高架高速道路和城市轻轨、地铁的防噪声使用，是现代化城市最理想的隔声降噪设施。
本公司生产的声屏障，高度在1m-5m间，覆盖有效区域平均降噪10~15dB(A)(125Hz~40000Hz,1/3倍频程)，最高达20dB(A)。一般来讲，声屏障越高，或离声源越远，降噪效果就越好。
A sound barrier refers to a facility inserted between a sound source and a receiver that provides a significant additional attenuation of sound propagation, thereby reducing the noise impact within a certain area where the receiver is located. Such a facility is called a sound barrier.
Sound barriers are mainly used for sound insulation and noise reduction in transportation and municipal facilities such as highways, elevated composite roads, urban light rail subways, etc., to control the impact of traffic noise on nearby urban areas. They can also be used for sound insulation and noise reduction in factories and other noise sources.
The sound barrier is mainly composed of two parts: steel structure columns and soundproof screen panels. The columns are the main load-bearing components of the sound barrier, which are fixed to the embedded steel plates on the road crash wall or track edge by bolts or welding; The sound absorbing board is the main sound absorbing component, which is fixed in the H-shaped column groove through high-strength spring clips to form a sound barrier. The design of sound barriers has taken into account the wind load of elevated highways, urban light rail, and subways, as well as the impact safety of transportation vehicles and all-weather outdoor anti-corrosion issues. It has a beautiful and elegant appearance, exquisite production, convenient transportation and installation, low cost, and long service life. It is particularly suitable for noise prevention on elevated highways, urban light rails, and subways, and is the most ideal sound insulation and noise reduction facility in modern cities.
The sound barriers produced by our company have a height between 1m and 5m, covering an average noise reduction of 10~15dB (A) (125Hz~40000Hz, 1/3 octave band) in the effective area, with a maximum of 20dB (A). Generally speaking, the higher the sound barrier or the farther away from the sound source, the better the noise reduction effect.
