| 摘要 |
FIELD: construction. ^ SUBSTANCE: acoustic structure comprises a shop carcass, window openings and acoustic barriers in the form of acoustic sound-absorbing panels assembled into sections. Window openings comprise vacuum sound-insulating glasing units. Acoustic sound-absorbing panels consist of a frame made in the form of a parallelepiped formed by front and rear walls of the panel, every of which is ""-shaped. The floor is made on an elastic base and comprises a bearing ceiling slab joined to the building wall, a base plate made of concrete reinforced with vibration damping material, which is installed on a basic plate of a floor slab with cavities via layers of vibration damping material and hydraulic insulation material installed with a gap relative to bearing walls of a production room, which are made with flanging that tightly adjoins bearing structures of the walls and the basic bearing wall. Cavities of the basic plate are filled with vibration damping material, for instance, with a foamed polymer. A spherical single-piece sound absorber comprises a rigid frame suspended to the production building ceiling by means of a bracket and with sound-absorbing material installed inside the frame and wrapped by a meshy capron tissue. The frame is made as perforated in its shape as a spherical surface made of two hemispheres fixed at least by three fixing elements. The bracket is made in the form of a ring or a hook. ^ EFFECT: invention makes it possible to improve efficiency of noise attenuation. ^ 5 dwg |
