The main materials of bridge sound barrier include metal sound barrier, concrete sound barrier, fiberglass sound barrier, PC sound barrier, etc. Generally, the cost of metal sound barrier is relatively high, and it is easy to rust; Ordinary concrete has heavy weight and low strength; The fiberglass sound barrier has high cost and is not fireproof; PC sound barrier is the main material of bridge sound barrier with high strength, light weight, strong weather resistance and good toughness. Almost every city has a viaduct to alleviate traffic pressure, but the viaduct has advantages and disadvantages. It dredges the traffic, but it also causes greater noise. The noise barrier of the viaduct reduces the noise for the city, and its beautiful appearance also becomes a beautiful scenery line in the city.1. Beautiful: You can choose a variety of colors and shapes to combine and match, coordinate with the surrounding environment, beautiful and generous; 2. Economy: assembly construction, improve work efficiency, shorten construction time and reduce project costs; 3. Durability: This product has water resistance, heat resistance, UV resistance, and is not affected by climate and weather; 4. Scope of application: It can be used in areas with excessive noise, such as highways, urban viaducts, residential areas, etc. The two ends of the sound-absorbing screen installed on the urban viaduct are fixed with Φ 6 steel wire rope links to prevent secondary damage caused by falling off. The weight of the product itself is light, which can reduce the bearing load of the viaduct and reduce the structural cost. 5. High strength: considering the different climatic conditions in different regions of China, the virtual wind load shall be fully considered in the structural design. The strength is increased by pressing grooves on the production line. 6. Waterproof and dustproof: the sound-absorbing performance of waterproof and dustproof in the dust or rain environment will not be affected during the design of materials, and dust drainage measures have been set in the structure to avoid water accumulation inside the components.