STUDY ON THE FLOOR IMPACT SOUND OF VOID SLABS BY EIGENVALUE ANALYSIS : Analysis on the floor impact sound of void slabs by FEM with coupling of in-plane and bending displacement

典久, 橋本

doi:10.3130/aija.67.9_5

Cited by 2 publications

(2 citation statements)

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“…In addition, the unit weight of the slab was converted from 2,400 kg/m 3 to 1,792 kg/m 3 . Note that the validity of the method of converting the void slab into the equivalent slab thickness and unit weight was confirmed in a previous study [11].…”

Section: Analytical Conditions and Simulated Modelsupporting

confidence: 67%

“…A numerical calculation method [6,7] that combines vibration response analysis using the in-plane/out-of-plane coupled-type finite element method and radiation sound analysis using the wave function method [9] in a rectangular room was adopted to analyze heavy-weight floor impact sound. This numerical calculation method has the feature that a three-dimensional model can be treated as a two-dimensional one, and the validity of the analysis has been confirmed for various floor structures of beam slabs [6,7,10], voided slabs [11,12], and deck plate slabs in steel structure buildings [13].…”

Section: Analytical Conditions and Simulated Modelmentioning

confidence: 99%

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Heavy-weight floor impact sound of a pure framed structure by field measurement and numerical calculation

Uemura

Hashimoto²,

Kondo

2023

Acoust. Sci. & Tech.

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Examples of poor heavy-weight floor impact sound performance of pure framed structures with reinforced concrete were observed relative to the floor slab thickness. To investigate the cause of the poor performance, the floor vibration characteristics of several examples of actual pure framed structures were measured during heavy-weight impact. As a result, the floor vibration characteristics of the displacement of the girders and coupled vibration of the girders and floor slabs not seen in conventional floor structures surrounded by girders with reinforced concrete walls were observed. The propagation of the vibration of the floor slab was observed in more than the range surrounded by girders and in the next slab beyond the girders owing to the vibration of the girder itself. That these physical phenomena can be evaluated using a numerical calculation method was confirmed, and the vibration of the girder itself and the actual vibration range when the floor slab is subjected to heavyweight impact must be considered to accurately predict the heavy-weight floor impact sound performance.

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Section: Analytical Conditions and Simulated Modelsupporting

confidence: 67%

Section: Analytical Conditions and Simulated Modelmentioning

confidence: 99%

Heavy-weight floor impact sound of a pure framed structure by field measurement and numerical calculation

Uemura

Hashimoto²,

Kondo

2023

Acoust. Sci. & Tech.

Self Cite

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NUMERICAL ANALYSIS OF HEAVY WEIGHT FLOOR IMPACT SOUND OF VOID SLABS(Environmental Engineering)

Hashimoto

Abe

2005

AIJ J. Technol. Des.

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In a previous paper ， it was shown through the eigenvalue analysis that the finite element metbod with coupling of the in − plane and bending displace − ments ( caUed CIB −FEM ) is usefl 」l tbr the calculation of fioor impact sounds of void s！ abs ． In a present paper ，由e heavy weight floor impact sound is directly calculated l〕y thedynamical analysis ofvoid slabs based on CIB − FEM and the characteristic ilnction method f ( )r ' the sound space analysis ． As the results ofthis study the fbllowings are revealed 、 The results of analysis on the void slab agree we 王 1 with the measured values ． The change in the acoustic radiation efficiency considerably aff6cts a level of 出e fioor impact sound of vQid slab ． The tleor 玉 mpact sound of the void siab is approximately deter − mined by the weigh！ of void， A conversion fbrmula of void slab into the equivalent slab thickness and unit weight gives the accurate results on 山e calculation of the fioor impact sound 、

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STUDY ON THE FLOOR IMPACT SOUND OF VOID SLABS BY EIGENVALUE ANALYSIS : Analysis on the floor impact sound of void slabs by FEM with coupling of in-plane and bending displacement

Cited by 2 publications

References 1 publication

Heavy-weight floor impact sound of a pure framed structure by field measurement and numerical calculation

Heavy-weight floor impact sound of a pure framed structure by field measurement and numerical calculation

NUMERICAL ANALYSIS OF HEAVY WEIGHT FLOOR IMPACT SOUND OF VOID SLABS(Environmental Engineering)

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