LOW-NOISE EARTHQUAKE-RESISTANT INDUSTRIAL BUILDING Russian patent published in 2018 - IPC E04H9/02 E04B1/84 

FIELD: construction.

SUBSTANCE: invention relates to industrial acoustics. Technical result is achieved by the fact that in a low noise earthquake resistant industrial building containing the frame of a building with a foundation, bearing walls with fences in the form of a floor and a ceiling which are faced with sound-absorbing designs, window and door apertures, as well as piece sound absorbers, containing a frame in which the sound-absorbing material is located, and installed above the noisy equipment, base load-bearing floor slabs are equipped in the places of their fixation to the bearing walls of the building with a system of spatial vibration isolation consisting of horizontally located vibration isolators that receive vertical static and dynamic loads, as well as vertical vibration isolators, receiving horizontal static and dynamic loads, herewith the floor in the rooms is made on an elastic foundation and contains an installation plate made of reinforced with a vibration cushioning material concrete that is installed on the base plate of the interfloor overlapping with the cavities through the layers of the vibration cushioning material and waterproofing material with a gap in relation to the bearing walls of the production premises, wherein the cavities of the base plate are filled with a vibration cushioning material, for example, a foamed polymer. Herewith, the spherical sound absorber contains sound absorbers of active and reactive types. Sound absorbent lining of the building walls is made in the form of a rigid and perforated walls, between which there is a multilayer sound-absorbing element, which is made in the form of two layers: one of which, adjacent to the rigid wall, is sound-absorbing, and the other, adjacent to the perforated wall, is made with perforation from a sound reflecting material of a complex profile consisting of uniformly distributed hollow tetrahedrons. As a sound-reflecting material, a material based on aluminium-containing alloys is used, followed by filling with titanium hydride or air with a density within 0.5…0.9 kg / m³ with the following strength properties: compressive strength within 5…10 MPa, bending strength within 10…20 MPa, for example foam aluminium, or sound-insulating boards based on a glass staple fibre of the type "Shumostop" with a material density of 60÷80 kg / m³, or a material based on a magnesia cement with reinforcing glass fibre fabric or glass-fibre mat.

EFFECT: technical result is the improvement of efficiency of noise suppression and aseismic strength of the building.

1 cl, 5 dwg