Influence of Perforated Ceiling on Floor Impact Sound Insulation in Reinforced Concrete Buildings

Q1 Arts and Humanities

Acta Acustica united with Acustica Pub Date : 2019-07-01 DOI:10.3813/AAA.919352

Inho Kim, J. Ryu, Sungchan Lee

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引用次数: 0

Abstract

In this study, the influence of a perforated ceiling on the floor impact sound was investigated. The floor impact sound measurements were conducted both with and without suspended ceiling including the perforated and nonperforated panel, using heavy and light weight impact sources in a reinforced concrete test building. The results indicated that the perforated ceiling with and without absorption sheet greatly reduced the resonance of floor impact sound by the non-perforated ceiling. However, the perforated ceiling without an absorption sheet did not improve the single number quantity (SNQ, rubber ball: L′iA,Fmax,V.T and tapping machine: L′n,w) for the floor impact sound insulation. The perforated ceiling with attached absorption sheet produced SNQs of 2 dB lower and higher than that produced by the non-perforated ceiling for heavy and light weight impact sources, respectively. It was also found that the improvement in the floor impact sound insulation after the installation of the perforated ceiling was related to the mass-spring-mass system, rather than the absorption area of the receiving room.

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穿孔吊顶对钢筋混凝土楼板隔声性能的影响

在本研究中，研究了穿孔顶棚对地板冲击声的影响。在钢筋混凝土试验建筑中，使用重冲击源和轻冲击源，对有和没有吊顶的地板进行了冲击声测量，包括穿孔板和非穿孔板。结果表明:有吸声板和无吸声板的穿孔吊顶均能显著降低无穿孔吊顶对地板冲击声的共振;但是，不加吸波板的穿孔顶棚并没有提高单数字量(SNQ，橡胶球:L 'iA,Fmax,V)。T和攻丝机:L 'n,w)为地板冲击隔声。对于重冲击源和轻冲击源，带有吸波板的穿孔顶棚比无穿孔顶棚产生的snq分别低2 dB和高2 dB。还发现，安装穿孔吊顶后地板冲击隔声效果的改善与质量-弹簧-质量系统有关，而与收纳室的吸收面积无关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Acustica united with Acustica 物理-声学

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

6.8 months

期刊介绍： Cessation. Acta Acustica united with Acustica (Acta Acust united Ac), was published together with the European Acoustics Association (EAA). It was an international, peer-reviewed journal on acoustics. It published original articles on all subjects in the field of acoustics, such as • General Linear Acoustics, • Nonlinear Acoustics, Macrosonics, • Aeroacoustics, • Atmospheric Sound, • Underwater Sound, • Ultrasonics, • Physical Acoustics, • Structural Acoustics, • Noise Control, • Active Control, • Environmental Noise, • Building Acoustics, • Room Acoustics, • Acoustic Materials and Metamaterials, • Audio Signal Processing and Transducers, • Computational and Numerical Acoustics, • Hearing, Audiology and Psychoacoustics, • Speech, • Musical Acoustics, • Virtual Acoustics, • Auditory Quality of Systems, • Animal Bioacoustics, • History of Acoustics.