ACOUSTIC STRUCTURE Russian patent published in 2012 - IPC E04B1/84 

FIELD: construction.

SUBSTANCE: acoustic structure comprises a shop carcass, bearing walls with enclosures in the form of a floor and a ceiling, which are lined with sound-absorbing structures, window and door openings, and also single-piece sound absorbers, comprising a frame, where sound-absorbing material is arranged, and installed above noisy equipment. The floor is made on an elastic base and comprises a base plate made of concrete reinforced with vibration damping material and 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. Cavities of the basic plate are filled with vibration damping material, for instance, with a foamed polymer. A single-piece sound absorber comprises a rigid frame suspended at hooks by ropes to the production building ceiling with sound-absorbing material installed inside the frame and wrapped by a meshy capron tissue. An expanded steel sheet is fixed to the frame. The frame may be made in shape as a rectangular parallelepiped or a cube.

EFFECT: invention makes it possible to improve efficiency of noise attenuation.

5 cl, 5 dwg