The prediction of the vibration reduction index Kij for brick and concrete rigid junctions

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  • Additional Information
    • Author-Supplied Keywords:
      Empirical model
      In-field acoustical measurements
      Rigid junction
      Sound insulation
      Vibration reduction index
    • NAICS/Industry Codes:
      444190 Other Building Material Dealers
      423320 Brick, Stone, and Related Construction Material Merchant Wholesalers
      327390 Other Concrete Product Manufacturing
      238120 Structural Steel and Precast Concrete Contractors
      423330 Roofing, Siding, and Insulation Material Merchant Wholesalers
      238310 Drywall and Insulation Contractors
    • Abstract:
      Abstract: The vibration reduction index, Kij , is related to the transmission of the vibrational power over a junction between structural elements. Two empirical models are proposed to evaluate Kij , on the basis of statistical evaluations of numerous in-field tests carried out on rigid junctions between floors made by concrete beams and ribbed slab with brick blocks and brickwork walls, a type of junction that is frequently encountered in Southern European and Mediterranean buildings. These models can be applied in order to calculate the sound insulation properties, such as the normalized impact sound pressure level, , and the apparent sound reduction index, R′, of walls and floors in buildings. The first model allows the single number value of the vibration sound reduction index of a junction to be calculated, on the basis of the real properties of the materials that constitute the junction. A new quantity, the “essential” mass per unit area, was introduced to implement the model. The second model provides an estimation of the Kij as a function of frequency, subdivided between BB-junction, as ribbed slab with brick blocks floor–brick wall, and CB-junction, i.e. concrete beam–brick wall. [Copyright &y& Elsevier]
    • Abstract:
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    • Author Affiliations:
      1Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce, 91, 10135 Torino, Italy
      2Politecnico di Torino, Department of Energetics, C.so Duca degli Abruzzi, 24, 10129 Torino, Italy
    • ISSN:
      0003-682X
    • Accession Number:
      10.1016/j.apacoust.2010.01.001
    • Accession Number:
      48403895
  • Citations
    • ABNT:
      SCHIAVI, A.; ASTOLFI, A. The prediction of the vibration reduction index Kij for brick and concrete rigid junctions. Applied Acoustics, [s. l.], v. 71, n. 6, p. 523–530, 2010. DOI 10.1016/j.apacoust.2010.01.001. Disponível em: http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=a9h&AN=48403895&authtype=sso&custid=s5834912. Acesso em: 6 dez. 2019.
    • AMA:
      Schiavi A, Astolfi A. The prediction of the vibration reduction index Kij for brick and concrete rigid junctions. Applied Acoustics. 2010;71(6):523-530. doi:10.1016/j.apacoust.2010.01.001.
    • APA:
      Schiavi, A., & Astolfi, A. (2010). The prediction of the vibration reduction index Kij for brick and concrete rigid junctions. Applied Acoustics, 71(6), 523–530. https://doi.org/10.1016/j.apacoust.2010.01.001
    • Chicago/Turabian: Author-Date:
      Schiavi, Alessandro, and Arianna Astolfi. 2010. “The Prediction of the Vibration Reduction Index Kij for Brick and Concrete Rigid Junctions.” Applied Acoustics 71 (6): 523–30. doi:10.1016/j.apacoust.2010.01.001.
    • Harvard:
      Schiavi, A. and Astolfi, A. (2010) ‘The prediction of the vibration reduction index Kij for brick and concrete rigid junctions’, Applied Acoustics, 71(6), pp. 523–530. doi: 10.1016/j.apacoust.2010.01.001.
    • Harvard: Australian:
      Schiavi, A & Astolfi, A 2010, ‘The prediction of the vibration reduction index Kij for brick and concrete rigid junctions’, Applied Acoustics, vol. 71, no. 6, pp. 523–530, viewed 6 December 2019, .
    • MLA:
      Schiavi, Alessandro, and Arianna Astolfi. “The Prediction of the Vibration Reduction Index Kij for Brick and Concrete Rigid Junctions.” Applied Acoustics, vol. 71, no. 6, June 2010, pp. 523–530. EBSCOhost, doi:10.1016/j.apacoust.2010.01.001.
    • Chicago/Turabian: Humanities:
      Schiavi, Alessandro, and Arianna Astolfi. “The Prediction of the Vibration Reduction Index Kij for Brick and Concrete Rigid Junctions.” Applied Acoustics 71, no. 6 (June 2010): 523–30. doi:10.1016/j.apacoust.2010.01.001.
    • Vancouver/ICMJE:
      Schiavi A, Astolfi A. The prediction of the vibration reduction index Kij for brick and concrete rigid junctions. Applied Acoustics [Internet]. 2010 Jun [cited 2019 Dec 6];71(6):523–30. Available from: http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=a9h&AN=48403895&authtype=sso&custid=s5834912