Analysis of Heavyweight Floor Impact Sound Level with Dynamic Stiffness and Thickness of EPS Type Resilient Materials

Song, Guk Gon; Kim, Yong Hee; Ryu, Jongkwan; Jun, Kim Myung

doi:10.5050/ksnve.2018.28.6.713

Cited by 7 publications

(2 citation statements)

References 4 publications

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“…Usually, a flat-type ceiling is employed, but a coffered-type ceiling is often employed to maximize living room space despite the limited floor height. Some research tried to evaluate floor impact sounds with increasing sound absorption performance using infill sound absorbers or with increasing sound isolating performance using thicker and heavier materials [21,22]. However, this gypsum board ceiling with a backing air cavity usually yields amplification of low-frequency impact sounds at around 63 Hz [23].…”

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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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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“…As these noise types are a major reason for neighborhood conflicts, the South Korean government recommended a thicknesses of at least 210 mm for concrete slabs and imposed legal requirements in terms of impact sound insulation since 2005. Subsequently, various impact sound reduction techniques were considered in newly built apartments [3][4][5]. However, the apartments that were already built before enacting the minimum performance standards (hereinafter referred to as existing housing) account for 80% of the total apartments and have poor impact sound insulation performance.…”

Section: Introductionmentioning

confidence: 99%

Effects of Wall-to-Wall Supported Ceilings on Impact Sound Insulation for Use in Residential Buildings

2021

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In Korean residential buildings, floor impact sounds were reduced over the past few decades mainly through a floating floor system. However, ceiling constructions for impact sound reduction have not been applied actively because of a lack of useful information. This study focuses on the effects of wall-to-wall supported ceilings (WSC), which are designed with construction discontinuities between concrete slabs and ceilings, and the damping caused by porous absorbers for impact sound insulation. To examine the impact sound insulation according to ceiling conditions, measurements were performed in 25 floor–ceiling assemblies. The results indicate that ceiling treatment is mostly useful in reducing the floor impact sound. The floor impact sound owing to the WSC decreased by 2–7 dB and 2–8 dB in terms of the single number quantity for the tapping machine and rubber balls, respectively, compared with representative existing housing constructions wherein ceilings were attached on wooden sticks. Furthermore, the reduction effect of the WSC appeared to be more profound when it was applied to the floor–ceiling assembly with poor impact sound insulation. Thus, the WSC can be used to enhance the impact of sound insulation of existing housings without major repairs of floor structural layers.

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Study on Improvement of Floor Impact Sound Insulation Performance in Repairing Floor Layers of Aged Apartment

Kim¹,

Cho²,

Kim³

2019

KSNVE

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Analysis of Heavyweight Floor Impact Sound Level with Dynamic Stiffness and Thickness of EPS Type Resilient Materials

Cited by 7 publications

References 4 publications

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

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

Effects of Wall-to-Wall Supported Ceilings on Impact Sound Insulation for Use in Residential Buildings

Study on Improvement of Floor Impact Sound Insulation Performance in Repairing Floor Layers of Aged Apartment

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