AbstractAbout AuthorsReferences
The results of theoretical and experimental studies of sound insulation of light partitions with shotcrete claddings are presented. The search for ways to increase the sound insulation of enclosing structures without a significant increase of thickness and mass is an actual direction in building acoustics. Frameless sandwich panels with shotcrete claddings have prospects for widespread use as lightweight partitions between rooms in civil and industrial buildings. Shotcrete technology provides fast and high-quality execution of monolithic claddings from gypsum mortar. To meet the regulatory requirements for airborne sound insulation, it is necessary to reduce the resonant sound transmission near resonant dips in the medium and high frequency ranges. Theoretical studies have been carried out on the basis of the theory of self-coincidence of wave fields, and methods for increasing of sound insulation of light partitions have been determined. The method of acoustic separation of shotcrete claddings and the middle layer of sandwich panels provides a shift in the resonant frequency of the “mass-elasticity-mass” system below the normalized frequency range. The method of fragmentation of shotcrete linings provides a shift of the cutoff frequency of the region of full spatial resonances above the normalized frequency range. To test the effectiveness, laboratory experimental studies of sound insulation of three samples of light partitions were carried out. Both developed methods for increasing the sound insulation of enclosures showed high efficiency. The most effective is the combined use of two methods, at the same time the increase in the airborne sound insulation index of the fence was 15 dB. Based on the results of the conducted research, two new types of lightweight partitions with shotcrete claddings have been developed that meet the regulatory requirements for the value of the airborne noise insulation index for residential and public buildings.
D.S. KUZMIN1, Postgraduate Student (This email address is being protected from spambots. You need JavaScript enabled to view it.),
D.V. MONICH1, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
P.A. GREBNEV1, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
M.A. POROZHENKO2, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)
D.V. MONICH1, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
P.A. GREBNEV1, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
M.A. POROZHENKO2, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)
1 Nizhny Novgorod State University of Architecture and Civil Engineering (65, Ilyinskaya Street, Nizhny Novgorod, 603950, Russian Federation)
2 Scientific-Research Institute of Building Physics of RAACS (21, Lokomotivniy Driveway, Moscow, 127238, Russian Federation)
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12. Bobylev V.N., Tishkov V.A., Monich D.V., Grebnev P.A. Rezervy povysheniya zvukoizolyatsii odnosloinykh ograzhdayushchikh konstruktsii [Reserves for increasing the sound insulation of single-layer building envelopes]. Nizhny Novgorod: NNGASU. 2014. 118 p.
13. Kochkin A.A., Shashkova L.E., Kochkin N.A., Ivanova A.V. Ways to improve sound insulation of enclosing structures of buildings. Privolzhskii nauchnyi zhurnal. 2022. No. 1, рр. 41–51. (In Russian).
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15. Patent na poleznuyu model’ RF 214565. Zvukoizoliruyushchee ograzhdenie [Soundproof enclosure]. Kuzmin D.S., Bobylev V.N., Erofeev V.I., Pavlov I.S., Grebnev P.A., Monich D.V., Gagulaev A.V., Efimov A.P., Poleshchikov S.N. Priority from 22.09.2022. (In Russian).
16. Patent na poleznuyu model’ RF 217696. Zvukoizoliruyushchee ograzhdenie s ob-litsovkami iz metamateriala [Soundproof enclosure with metamaterial claddings]. Kuzmin D.S., Monich D.V., Bobylev V.N., Grebnev P.A., Erofeev V.I., Pavlov I.S. Utility model patent RU No. 217696. Priority from 21.02.2023. (In Russian).
2. Savrasova N.A., Agapov A.D., Savrasova E.E. The problem of increasing noise pollution of the environment. Collection of articles of the III International Research Competition. Petrozavodsk. 2020, рр. 259–268. (In Russian).
3. Shubin I.L., Aistov V.A., Porozhenko M.A. Sound insulation of enclosing structures in multi-storey buildings. Requirements and methods of support. Stroitel’nye Materialу [Construction Materials]. 2019. No. 3, рр. 33–43. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2019-768-3-33-43
4. Gureev K.A., Tryastsin D.V. Studies of the acoustic properties of materials for additional sound insulation in multi-apartment residential buildings in the conditions of the use of various building structures. Noise Theory and Practice. 2022. Vol. 8, No. 4, рр. 49–58. (In Russian).
5. Kuzmin D.S., Monich D.V., P Grebnev.A., Gradova O.V. Experimental studies of sound insulation of sandwich panels with shotcretedcladdings. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2022. No. 7, рр. 18–23. (In Russian). DOI: https://doi.org/10.31659/0044-4472-2022-7-18-23
6. Sedov M.S. Zvukoizolyatsiya. V kn.: Tekhnicheskaya akustika transportnykh mashin: spravochnik [Soundproofing. In the book: Technical acoustics of transport vehicles: a reference book]. Edited by N.I. Ivanov. Saint Petersburg: Polytekhnika. 1992, рр. 68–105.
7. Sedov M.S. Analysis and calculation of noise insulation by light enclosures. Proceedings of International Noise and Vibration Control Conference «Noise-93». Edited by M.J. Crocker and N.I. Ivanov. 1993. Vol. 3. St. Petersburg, рр. 111–116.
8. Grebnev P.A., Monich D.V. Study of the soundproofing properties of frameless enclosing structures made of sandwich panels. Privolzhskii nauchnyi zhurnal. 2014. No. 3, рр. 53–58. (In Russian).
9. Cremer L., Eisenberg A. Verbesserung der Schalldämmung dünner Wände durch Verringerung ihrer Biegesteifigkeit. Bauplanung und Bautechnik. Bd. 2. No. 8. 1948, рр. 235–238.
10. Ilyashuk Yu.M. Influence of rigidity of enclosing structures on their sound insulation. Proceedings of I scientific. conference “Combating noise and the effects of noise on the body”, Vol. 2. Leningrad: VTsNIIOT. 1958, рр. 56–76. (In Russian).
11. Bobylev V.N., Sedov M.S. On the influence of the flexural stiffness of fences on their sound insulation in the frequency range below the boundary. Abstracts of the VIII All-Union Acoustic Conference. Moscow. 1973, рр. 45–49. (In Russian).
12. Bobylev V.N., Tishkov V.A., Monich D.V., Grebnev P.A. Rezervy povysheniya zvukoizolyatsii odnosloinykh ograzhdayushchikh konstruktsii [Reserves for increasing the sound insulation of single-layer building envelopes]. Nizhny Novgorod: NNGASU. 2014. 118 p.
13. Kochkin A.A., Shashkova L.E., Kochkin N.A., Ivanova A.V. Ways to improve sound insulation of enclosing structures of buildings. Privolzhskii nauchnyi zhurnal. 2022. No. 1, рр. 41–51. (In Russian).
14. Kochkin A.A., Shashkova L.E. Improving the sound insulation of layered vibration-damped fences by reducing their bending stiffness. Izvestiya of the Southwestern State University. 2011. No. 5–2, рр. 159–162. (In Russian).
15. Patent na poleznuyu model’ RF 214565. Zvukoizoliruyushchee ograzhdenie [Soundproof enclosure]. Kuzmin D.S., Bobylev V.N., Erofeev V.I., Pavlov I.S., Grebnev P.A., Monich D.V., Gagulaev A.V., Efimov A.P., Poleshchikov S.N. Priority from 22.09.2022. (In Russian).
16. Patent na poleznuyu model’ RF 217696. Zvukoizoliruyushchee ograzhdenie s ob-litsovkami iz metamateriala [Soundproof enclosure with metamaterial claddings]. Kuzmin D.S., Monich D.V., Bobylev V.N., Grebnev P.A., Erofeev V.I., Pavlov I.S. Utility model patent RU No. 217696. Priority from 21.02.2023. (In Russian).
For citation: Kuzmin D.S., Monich D.V., Grebnev P.A., Porozhenko М.А. Ways to increase of sound insulation of light partitions with shotcrete claddings. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2023. No. 7, pp. 10–16. (In Russian). DOI: https://doi.org/10.31659/0044-4472-2023-7-10-16