LOW-NOISE PRODUCTION BUILDING Russian patent published in 2018 - IPC E04B1/84 E04H9/02 

FIELD: acoustics.

SUBSTANCE: invention relates to industrial acoustics. Low-noise seismic resistant production building contains a frame of a building with a base, bearing walls with enclosures in the form of a floor and a ceiling, which are veneered with sound-absorbing structures, window and door openings, as well as single sound absorbers containing a frame, in which the sound-absorbing material is located, and being installed above the noisy equipment. Basic bearing ceiling slabs are equipped with a damping system at their attachment to the building bearing walls, consisting of horizontal vibration isolators, accepting vertical static and dynamic loads, as well as vertical vibration isolators receiving horizontal static and dynamic loads. Floor in rooms is made on elastic base and comprises a mounting plate made of reinforced vibration damping concrete material, which is installed on base plate of inter-floor slab with cavities through layers of vibration damping material and waterproofing material with a clearance relative to the production room bearing walls. Cavities of base plate are filled with vibration damping material, for example foamed polymer. Cavities of the base plate are filled with a vibration damping material made in the form of a screw insert made from an elastic polymer, for example polyurethane filled with a foamed polymer, for example polyethylene or polypropylene. Base of the building frame is made with vibration isolation of the reinforced concrete slab, which consists of interconnected reinforced concrete beams in the base of the building, which includes at least four vibration isolators installed between the metal plate and the concrete beam located at the base of the building integral with at least eight ribbon foundation blocks, which are particular "traps". Each of the metal plates is installed on at least three concrete pillars-stops. Between every strip foundation blocks and each of the reinforced-concrete beams sandy cushions are installed. Strain sensors are fixed under the vibration isolators, which control the draft of vibration isolators. Sand pads are installed in metal detachable clips. Each of the vibration isolators consists of rigidly interconnected rubber plates: the upper and lower, in which through holes are made, located on the surface of the vibration isolator in staggered order. Form of the vibration isolators is square or rectangular, and their lateral faces are made in the form of curved surfaces of the n-th order, providing an equal frequency of the vibration isolation system as a whole. Holes are cross-sectional in shape, which ensures equal frequency of the vibration isolator, and are filled with a vibration damping material made from an elastic polymer, for example polyurethane.

EFFECT: invention increases the efficiency of noise suppression and seismic resistance of a building.

1 cl, 5 dwg