Prediction and analysis of heavy weigh floor impact vibration considering variation in material properties of dueling floor structure

Jung-Bin Im; Kwan-Seop Yang; Gab-Cheol Jeong; Yang-Ki Oh

doi:10.7776/ASK.2025.44.6.655

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2025 Vol.44, Issue 6 Preview Page Next Page

Research Article

Prediction and analysis of heavy weigh floor impact vibration considering variation in material properties of dueling floor structure 바닥구조 물성에 따른 중량충격진동 예측 및 분석

30 November 2025. pp. 655-663

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Abstract

In this paper, the vibration responses of apartment building concrete slabs due to heavy-weight floor impact loads were predicted using the finite element analysis, considering variation in the elastic modulus of concrete slab and the dynamic stiffness of resilient material used in floating floor system. The analysis models were validated by comparing the predicted results with the experimental measurements. Through the natural frequency analysis of the slabs, it was confirmed that the elastic modulus of concrete slab varied between 10,000 MPa and 30,000 MPa depending on the floor and construction site, and the measured values were approximately 30 % lower than that calculated using the design strength. Vibration analysis of the slabs revealed that the higher concrete elastic modulus and the lower dynamic stiffness of resilient material in floating floor system lead to better performance in reducing heavy-weight floor impact noise.

Keywords

Concrete slab

Elastic modulus

Floating floor

Vibration response

Heavy weight floor impact noise

본 논문에서는 콘크리트 슬래브의 탄성계수와 뜬바닥구조 완충재의 동탄성계수 변화에 따른 공동주택 슬래브의 중량충격 진동 응답을 유한요소해석을 이용하여 예측하였고 측정 결과와 비교분석을 통해 해석모델의 유효성을 검증하였다. 슬래브의 고유진동수 분석을 통해 콘크리트의 탄성계수가 층별로, 그리고 현장별로 10,000 MPa ~ 30,000 MPa의 변동폭이 있으며 설계강도로 계산한 값보다 실측값이 약 30 % 낮음을 확인하였다. 슬래브의 진동해석을 통해 콘크리트의 탄성계수가 높을수록 그리고 뜬바닥구조 완충재의 동탄성계수가 낮을수록 중량충격음 차단 성능이 높아짐을 알 수 있다.

키워드

콘크리트 슬래브

탄성계수

뜬바닥

진동 응답

중량충격음

References

D. H. Mun, S. H. Lee, J. S. Hwang, G. O. Baek, and H. G. Park, “Prediction of heavy-weight floor impact sound in multi-unit house using finite element analysis” (in Korean), J. Comput. Struct. Eng. Inst. Korea, 28, 645-657 (2015).

10.7734/COSEIK.2015.28.6.645

S. B. Lee, M. J. Kim, K. S. Choi, and J. J. Kim, “Prediction of heavy weight impact sound in apartment with floating floor structure using finite element analysis method” (in Korean), Trans. Korean Soc. Noise Vib. Eng. 34, 402-411 (2023).

10.5050/KSNVE.2023.33.4.402

KS F ISO 16283-2:2015, Acoustics - Feild Measurement of Sound Insulation in Buildings and of Building Elements - Part 2: Impact Sound Insulation, 2015.

KS F ISO 717-2:2020, Acoustics-Rating of Sound Insulation in Buildings and of Building Elements - Part 2: Impact Sound Insulation, 2020.

KDS 14 20 10:2021, Concrete Structural Analysis and Design Principles, 2021.

KS F 2405:2022, Test Method for Compressive Strength of Concrete, 2022.

KS F 2438:2017, Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio in Compression of Cylindrical Concrete Specimens. 2017.

KS F 2868:2003, Determination of Dynamic Stiffness of Materials used Under Floating Floors in Dwellings, 2023.

Information

Publisher :The Acoustical Society of Korea
Publisher(Ko) :한국음향학회
Journal Title :The Journal of the Acoustical Society of Korea
Journal Title(Ko) :한국음향학회지
Volume : 44
No :6
Pages :655-663
Received Date : 2025-10-13
Revised Date : 2025-11-13
Accepted Date : 2025-11-24
DOI :https://doi.org/10.7776/ASK.2025.44.6.655

The Journal of the Acoustical Society of KoreaISSN:1225-4428(Print) 2287-3775(Online)한국음향학회

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