Full scale model investigation on the acoustical protection of a balcony-like façade device (L)

Tong, Yean Ghing; Tang, Shiu Keung; Yeung, Maurice

doi:10.1121/1.3598430

Cited by 16 publications

(11 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The maximum insertion loss was 7 dB. Tong et al [48] also indicated the importance of acoustic modes in shaping the insertion loss spectra.…”

Section: Balconiesmentioning

confidence: 94%

See 1 more Smart Citation

A Review on Natural Ventilation-enabling Façade Noise Control Devices for Congested High-Rise Cities

Tang

2017

Applied Sciences

View full text Add to dashboard Cite

Abstract:This review summarizes the current status of the research and development of natural ventilation-enabling noise control devices for use on the façades of high-rise residential buildings in congested cities. These devices are important for a sustainable urbanized city, as they are supposed to offer good acoustical protection to citizens, allowing for an acceptable level of natural ventilation inside residential units; energy for mechanical ventilation can then be saved. From the information presented in the existing literature, it is concluded that protrusive devices, such as lintels and balconies, are not effective noise screening devices, even if they are installed with sound absorbers and/or reflectors, under the effect of city reverberation. On the contrary, plenum windows and similar structures, which are plenum structures with a staggered air inlet and outlet, are interesting alternatives that are worth rigorous considerations.

show abstract

“…The maximum insertion loss was 7 dB. Tong et al [48] also indicated the importance of acoustic modes in shaping the insertion loss spectra.…”

Section: Balconiesmentioning

confidence: 94%

“…A full scale experimental study on the insertion loss of a balcony-like structure in the presence of sound absorption, has been completed by Tong et al [48], inside a dual-chamber laboratory facility built for the ISO140-3 test. High density 1-inch thick fibreglass was used as the sound absorption.…”

Section: Balconiesmentioning

confidence: 99%

A Review on Natural Ventilation-enabling Façade Noise Control Devices for Congested High-Rise Cities

Tang

2017

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…El-Dien and Woloszyn 5 investigated the effects that inclined parapets and ceilings have on a balcony's insertion loss. May, 2 Hothersall et al, 6 Lee et al, 7 and Tong et al 8 showed that balconies can provide acoustical protection if they are installed with acoustic treatments. Kropp and B erillon 9,10 used modal approach to study the low-and mid-frequency noise inside balcony cavities with rigid and non-rigid boundaries.…”

Section: Introductionmentioning

confidence: 97%

Insertion losses of balconies on a building façade and the underlying wave interactions

Tang

Tso

2014

The Journal of the Acoustical Society of America

Self Cite

View full text Add to dashboard Cite

This study used scale model experiments to investigate the insertion losses of balconies on a building façade in the presence of ground reflections. The experiments measured both A-weighted broad- and narrowband insertion loss spectra. The underlying wave interactions/interferences and their couplings with and without reflections from the balcony ceilings were also examined in detail, and these findings were related to the dimensions and elevations of the balconies. The findings indicate that the ground and ceiling reflections and their interferences with the direct sound play very important roles in shaping the frequency characteristics of the insertion losses. Strong sound attenuation can be attained with a carefully designed geometry and acoustical properties of the balcony and the balcony ceiling.

show abstract

“…In urban streets, balconies are likely to be subjected to road traffic noise levels that may interfere with speech communication. Earlier research into environmental noise on residential balconies has mainly focused on road traffic noise and has also involved a range of methods from full scale measurements 1-5 to scale modeling [6][7][8][9][10][11][12][13] and theoretical models. [4][5][6][7][9][10][11][14][15][16] A concise review of most of this literature has been developed.…”

Section: Introductionmentioning

confidence: 99%

Speech interference and transmission on residential balconies with road traffic noise

Naish

Tan

Demirbilek

2013

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

Balcony acoustic treatments can mitigate the effects of community road traffic noise. To further investigate, a theoretical study into the effects of balcony acoustic treatment combinations on speech interference and transmission is conducted for various street geometries. Nine different balcony types are investigated using a combined specular and diffuse reflection computer model. Diffusion in the model is calculated using the radiosity technique. The balcony types include a standard balcony with or without a ceiling and with various combinations of parapet, ceiling absorption and ceiling shield. A total of 70 balcony and street geometrical configurations are analyzed with each balcony type, resulting in 630 scenarios. In each scenario the reverberation time, speech interference level (SIL) and speech transmission index (STI) are calculated. These indicators are compared to determine trends based on the effects of propagation path, inclusion of opposite buildings and difference with a reference position outside the balcony. The results demonstrate trends in SIL and STI with different balcony types. It is found that an acoustically treated balcony reduces speech interference. A parapet provides the largest improvement, followed by absorption on the ceiling. The largest reductions in speech interference arise when a combination of balcony acoustic treatments are applied.

show abstract

Full scale model investigation on the acoustical protection of a balcony-like façade device (L)

Cited by 16 publications

References 7 publications

A Review on Natural Ventilation-enabling Façade Noise Control Devices for Congested High-Rise Cities

A Review on Natural Ventilation-enabling Façade Noise Control Devices for Congested High-Rise Cities

Insertion losses of balconies on a building façade and the underlying wave interactions

Speech interference and transmission on residential balconies with road traffic noise

Contact Info

Product

Resources

About