About a hotel lobby lighting roof sound absorption sunshade noise reduction project
2024-07-22
General situation of the project: the roof of a hotel lobby is a 50*50m large-area glass lighting roof, the surrounding wall glass windows account for 60% of the total area, and the ground is basically free of obstacles. some weddings and other activities are often held, which will produce a large amount of echo noise when playing audio. at the same time, because of the large-area glass lighting roof, the indoor temperature and light are very strong, so it is very necessary to do a sound absorption and noise reduction shading project.
sound absorption noise reduction fabric selection:
There are roughly two sound-absorbing mechanisms of sound-absorbing materials in modern buildings: one is that there are a large number of small and connected voids in the material, and sound waves penetrate into the material along these voids, generating friction with the material and converting it into heat energy, thus achieving the effect of noise reduction and noise reduction; The other is the structure with the surface of the material covered with nests, and the sound will be repeatedly reflected in the "nest", causing energy loss, and then achieve the effect of noise reduction.
The sound-absorbing fabrics for curtains are also the origin of these two mechanisms. Professional curtain sound-absorbing fabrics are rarely available in the market. Domestic curtains are mostly thick flannel fabrics used for sound absorption and noise reduction. The light transmittance is very poor and there are no relevant technical parameters. It is not desirable for the hall to require good light transmittance.
[recommend Scheme] The other is the sound-absorbing wrapping fabric used for the ceiling or wall of private rooms, theaters, which has good sound-absorbing effect and hazy light-transmitting effect. However, such fabrics are soft in texture and lack of toughness. The compromise is to combine the sound-absorbing fabric with the sunshade fabric to make a composite sound-absorbing sunshade fabric that can not only absorb sound, but also shade, and has good light-transmitting effect, there are applications in this field abroad. Generally, a layer of sound-absorbing fabric is added between two layers of sunshade fabrics to meet the dual requirements of sound-absorbing sunshade. The hall ceiling can be made into two layers, because it is higher from the ground and will not involve the problem of visual beauty. Correspondingly, part of the cost can be reduced. The upper layer of sunshade fabric and the lower layer of sound-absorbing fabric are mesh structures with certain sound-absorbing functions, and then coupled with the sound-absorbing fabric effect is better, the overall cost will not be very high.
The sound absorption and noise reduction project of the whole hall should include the top, the four walls and the ground. The top can refer to the above solutions. There are many windows in the four walls. A layer of sunshine fabric roller shutter can be installed outside the windows, which can decorate and offset the noise reduction effect of direct glass surface reflection of sound. Outdoor roller shutter is a very popular shading method abroad. It will not affect the overall effect, but will only be more fashionable and modern. Although it is installed on the outside of the window, but still in the indoor environment, and ordinary roller shutter, will not increase too much cost. There are many sound-absorbing materials for walls, such as sound-absorbing wallpaper, sound-absorbing panels, sound-absorbing cotton, etc. The floor is generally made of carpet sound absorption.
Sunshade system and fabric selection:
If the fabric is determined to be a sunshade + sound-absorbing composite fabric, under the consideration of the structural span of the daylighting roof, the FCS ceiling curtain system with single-motor steel wire traction is recommend adopted, and the fabric is 3% open-hole sunlight fabric, so the whole sunshade system is economical and practical. This system is a mature sunshade product and will not be discussed here.
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No.9 West, North Barracks Industrial Concentration Zone, Niulanshan Town, Shunyi District, Beijing, China
Beijing Welkin Tracery Sunshade Co, Ltd.
Contact number: +86 10-61427790/50
E-mail:weiye123zheyang@163.com
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Address: No.9 West, North Barracks Industrial Concentration Zone, Niulanshan Town, Shunyi District, Beijing, China
Zip Code: 101301
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