Effect of the suspended ceiling with low-frequency resonant panel absorber on heavyweight floor impact sound in the building

Ryu, Jongkwan; Song, Hansol; Kim, Yong Hee

doi:10.1016/j.buildenv.2018.05.004

Cited by 20 publications

(6 citation statements)

References 22 publications

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“…Thus, an investigation on this topic is of paramount importance. Indeed, some previous research has focused on the analysis of the impact noise produced by a rubber ball on concrete floors [49][50][51][52][53] but only a few studies have focused on timber floors [54][55][56][57] and these have not been very comprehensive. Furthermore, a comparison of the three sound sources (dodecahedron, tapping machine and rubber ball) is missing in the literature.…”

Section: Research Gapmentioning

confidence: 99%

A comprehensive vibroacoustic investigation of a cross laminated timber floor

Caniato

Bettarello

Granzotto

et al. 2022

Construction and Building Materials

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Section: Research Gapmentioning

confidence: 99%

A comprehensive vibroacoustic investigation of a cross laminated timber floor

Caniato

Bettarello

Granzotto

et al. 2022

Construction and Building Materials

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“…The progress of developing ceiling structures in receiving rooms to reduce noise from floor impacts is also underway [21][22][23][24][25][26]. This involves using internal acoustic materials to minimize the amplification of impact noises to the room below due to the influence of the air layer within the ceiling and a ceiling-less design to minimize the transmission of impact noises through the ceiling.…”

Section: Introductionmentioning

confidence: 99%

Impact Sound Reduction Performances of Additional Floor Mats for the Retrofitting of an Existing Apartment Building in Accordance with Test-Bed Conditions

Kim,

Moon,

Yeon

2024

Applied Sciences

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Floor mats are commonly used to improve the impact sound performance of existing homes, but actual impact sound reductions do not consistently appear, as they depend on the test-bed conditions used to determine impact sound performance. Therefore, this study evaluated the effects of the environmental conditions of the test bed on the impact sound reduction performances of different floor mats. The Korean industrial standard KS F 2865 specifies the measurement method in the test room and sets the thickness range of the available target floor structure to bare slabs with thicknesses ranging from 120 mm to 210 mm. The evaluation method is ∆L, which is the difference in standardized impact sound levels before and after the installation of the floor finishing material. In this study, a total of eight types of floor mats were tested in four different test beds according to KS F 2865. The impact sources used were tapping, bang machines, and a rubber ball, and we used these sources to consider both light-weight and heavy-weight impact sounds. The results were derived as the impact sound reduction performance for each frequency band and a single-number quantity. The results showed that light impact sound had a similar minimum reduction characteristic of at least 38 dB, regardless of the floor structure on which the mat was installed. However, the heavy-weight impact sound showed different tendencies depending on the floor mat and the characteristics of the floor structure of the test bed when a bang machine and a rubber ball were used. In particular, the reduction achieved by the bang machine showed less than half the tendency of the reduction by the rubber ball, and the tendency of the heavy-weight impact sound was shown to be reducible depending on how the floor mat was maintained, but the reductions differed depending on the test bed. The reductions were larger in the box-type test room than in the real-life-type test room, and among the box-type test rooms, the one with a thicker bare slab showed a relatively larger reduction. In addition, the reliability of the measurement results was evaluated through a correlation analysis between the single-number quantities depending on the thicknesses of the bare slabs of the test beds.

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“…Especially, approaches with resilient layers in-between concrete slab and screed are the most popular method directly to reduce floor impact noises [14][15][16]. However, there are limitations to improve reducing the performance of impact noises only with floor treatment under a floating floor system with a limited total thickness (about 110 mm including resilient materials, leveling light-weight concrete, and finishing mortar) [17][18][19]. Therefore, it is needed for both new construction and remodeling purposes to develop additional architectural treatments such as ceiling and wall finishes in receiving rooms except for floor structure [20].…”

Section: Introductionmentioning

confidence: 99%

Acoustic Retrofit Approach of an Apartment Living Room Using Multi-Perforated Gypsum Boards in Terms of Heavy-Weight Impact Sounds

Kim

2022

Sustainability

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In this study, the effects of multi-perforated gypsum boards on floor impact noises were investigated in a box-type test building and an actual apartment building. In a box-type test building with 150 mm thick slab, various design factors such as hole pattern, hole size, opening ratio, backing, or finishing materials were considered. Heavy-weight impact sources of bang machine and rubber ball were employed. The test procedure followed KS F 2810-2, and then, a single number rating was derived in accordance with KS F 2863-2. As a result, reduction of heavy-weight impact noise by applying multi-perforated gypsum boards as a ceiling material was expected maximumly up to 3 dB for bang machine and 5 dB for rubber ball. Regarding the reduction of floor impact sounds at frequencies above 125 Hz, the installed area of the employed multi-perforated gypsum board was shown as the most dominant factor. Then, an in situ investigation using standard impact sources and five children was carried out in an actual living space of an actual apartment dwelling unit. Comparing before and after installation of multi-perforated gypsum board, 1–2 dB of heavy-weight impact noises was reduced. In addition, subjective impressions of the reduced impact noise were discussed based on the field questionnaire survey using actual children’s running situations.

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Effect of the suspended ceiling with low-frequency resonant panel absorber on heavyweight floor impact sound in the building

Cited by 20 publications

References 22 publications

A comprehensive vibroacoustic investigation of a cross laminated timber floor

A comprehensive vibroacoustic investigation of a cross laminated timber floor

Impact Sound Reduction Performances of Additional Floor Mats for the Retrofitting of an Existing Apartment Building in Accordance with Test-Bed Conditions

Acoustic Retrofit Approach of an Apartment Living Room Using Multi-Perforated Gypsum Boards in Terms of Heavy-Weight Impact Sounds

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