Shandong sound barrier manufacturer provides free customized sound insulation solutions. Qingdao installation case: air conditioning sound insulation facilities

Description :

　　The noise reduction of Shandong's sound barrier is related to factors such as the frequency of the noise, the height of the barrier, and the distance between the sound source and the receiving point. The noise reduction effect of sound barriers is closely related to the frequency components of noise, so companies should try to make the barriers as close as possible to the sound source or receiving point.

　　From a physical perspective, the sound barrier in Shandong is a mechanical wave. It comes from the vibration of objects. To reduce noise to a minimum, only by blocking sound waves, then there is the application of sound barriers. First, let's understand sound barriers.

　　A partition is set between the sound source and the receiving point to block the direct propagation of sound and reduce noise. This structure is called a sound barrier.

　　Shandong sound barrier is a control measure for traffic noise pollution. Some developed countries have been researching and applying sound barriers since the late 1960s. In recent years, some developed cities, highways, and railway industries in China have successively built sound barriers. The use of sound barriers to reduce road traffic noise is currently a widely used noise reduction method.

　　1. Design indicators for highway sound barriers

　　1) Location Name: XX Highway XX to XX Section of Highway

　　2) Sound barrier height: 3.52m

　　3) Wind load of Shandong sound barrier (KN/㎡): 0.50

　　4) Steel column stability: 1/1940

　　5) Shandong sound barrier tensile stress (MPa): 40.00

　　6) Anti overturning coefficient of Shandong sound barrier: 2.50

　　2. The height of the sound barrier in Shandong is 3.02m above the height of the collision wall, and the spacing between steel columns is 4m;

　　3. The safety factor of sound barriers in Shandong is ≥ 2.0;

　　4. The steel column of Shandong sound barrier can be made of Q235 125 × 125 × 6.5 × 9 with a tensile design strength of 210Mpa.

　　The construction and installation of Shandong sound barriers also require high attention. As the last step in environmental noise reduction, the effectiveness is of great importance.

　　Shandong has different installation methods for sound barriers in different highway sections and terrains.

　　The common installation methods for sound barriers in Shandong include shallow pile continuous beam installation, driven pile installation, frame installation, etc.

　　Today, as a manufacturer of sound barriers in Shandong, we would like to discuss and learn about the installation method of sound barriers on highways - shallow pile continuous beams

　　This installation method is currently common and commonly used for installing sound barriers.

　　Before installing the highway sound barrier, a basic inspection must be carried out:

　　⑴ Check the strength of the foundation concrete and the compaction condition around the foundation, which should meet the installation requirements.

　　⑵ The top surface of the foundation should be level, with a smooth surface and no residual concrete waste residue.

　　⑶ The tolerance between the foundation embedded bolts and nuts should meet the design requirements, and there should be no damage to the threaded part.

　　⑷ Use a template pre made according to the design drawings to directly fit onto the foundation bolts to check if the bolt spacing meets the design requirements.

　　⑸ Quality requirements for foundation construction:

　　allowable deviation

　　The longitudinal error of the centerline of adjacent two column foundations is ± 5mm

　　The lateral error of the centerline of adjacent two column foundations is ± 2mm

　　Construction error of exposed length of pre embedded bolts: 0-5mm

　　The elevation of the top surface of the foundation and the top surface of the cover board is ± 5mm

　　Pre embedded bolt spacing error ± 1mm

　　Next, we will introduce the specific installation method of highway sound barriers.

　　In the early stage, it is necessary to prepare concrete for pouring piles and continuous beams, and install them in coordination with each other. When pouring concrete again, attention should be paid to the fact that the length of the pile is less than four meters and the diameter is within one meter. This is why it is called a shallow pile. The sound barrier of a shallow pile on a highway also needs to be installed with a ground beam, which is within one meter in height and 0.5 meters in width. This pile is mainly used to connect the top of the poured pile and the pile body. The shallow pile is fixed and connected to disperse the force, in order to prevent the risk of erosion of the sound barrier caused by weather such as rain. It is mostly used in some sections with slopes, and the installation method seems slightly more complicated. Actually, the installation is not that complicated, it's very simple and can be mechanically operated and installed, The manual installation method can also be carried out, which is more suitable for quality supervision in the later stage.

　　In factories, machines and other equipment can generate significant noise, and installing sound barriers has become the main noise reduction product.

AfterSalesService :

• Shandong Sound Barrier