Sound Insulation between Buildings: The Impact Noise Transmission through Different Floor Configurations

Authors: Abdelouahab Bouttout, Mohamed Amara

Abstract:

The present paper examines the impact noise transmission through some floor building assemblies. The Acoubat software numerical simulation has been used to simulate the impact noise transmission through different floor configurations used in Algerian construction mode. The results are compared with the available measurements. We have developed two experimental methods, i) field method, and ii) laboratory method using Brüel and Kjær equipments. The results show that the different cases of floor configurations need some improvement to ensure the acoustic comfort in the receiving apartment. The recommended value of the impact sound level in the receiving room should not exceed 58 dB. The important results obtained in this paper can be used as platform to improve the Algerian building acoustic regulation aimed at the construction of the multi-storey residential building.

Keywords: Impact noise, building acoustic, floor insulation, resilient material.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1338720

References:

[1] Andreia Pereira, Luis Godinho, Diogo Mateus, Jaime Ramis, Fernando G. Branco. Assessment of a simplified experimental procedure to evaluate the impact sound reduction of floor coverings. Applied Acoustics 79 (2014) 92–103.
[2] ISO 16251-2014: Acoustics-Laboratory measurement of the reduction of transmitted impact noise by floor coverings on a small floor mock-up -- Part 1: Heavyweight compact floor.
[3] ISO 140-8:1997 Acoustics- Measurement of sound insulation in buildings and of building elements -- Part 8: Laboratory measurements of the reduction of transmitted impact noise by floor coverings on a heavyweight standard floor.
[4] ISO 717-2: 2013 Acoustics - Rating of sound insulation in buildings and of building elements - Part 2: Impact sound insulation.
[5] Birgit Rasmussen. Sound insulation between dwellings - Requirements in building regulations in Europe. Applied Acoustics. 71 (2010) 373- 385.
[6] Alessandro Schiavi, Andrea Prato, Andrea Pavoni Belli. The ‘‘dust spring effect’’ on the impact sound reduction measurement accuracy of floor coverings in laboratory. Applied Acoustics 97 (2015) 115–120.
[7] Ha-Seog Kim, Byoungil Kim, Sang-Ki Park, Sea-Hyun Lee. An experimental study on the effects of floor impact sounds from damping materials using mineral binders. Building and Environment 89 (2015) 244-252.
[8] Tongjun Cho. Vibro-acoustic characteristics of floating floor system: The influence of frequency-matched resonance on low frequency impact sound. Journal of Sound and Vibration 332 (2013) 33-42.
[9] Algerian regulation Law: The executive decree N° 93-184 of 27 July 1993 of the regulation of the noise emission.
[10] EN 12543-2Building acoustics -- Estimation of acoustic performance of buildings from the performance of elements -- Part 2: Impact sound insulation between rooms.
[11] Gramez Abdelghani, Amara Mohamed "Mesures in-situ et identification des défauts pour des bâtiments typiques", phase 2 document interne CNERIB, 2004.
[12] J. Y. Lee, J. Kim, H. J. Chang, J. M. Kim. Long-Term Structural Behavior of Resilient Materials for Reduction of Floor Impact Sound. World Academy of Science, Engineering and Technology. International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Vol: 8, No: 5, 2014.