Results 231 to 240 of about 11,323,712 (261)
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Prediction of heavy weight impact sound of large-spanned slabs
The Journal of the Acoustical Society of America, 1996Adaptation of the large-spanned RC slabs, whose area corresponds to an apartment unit, is increasing in Japan. The authors measured heavy-weight impact sound and impedance of such large slabs at over 30 sites. The structural methods of slabs are: unbond, half-precast concrete, void, and the conventional framework method.
Takashi Koga, Masanori Tano
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Subjective evaluation of heavy-weight floor impact sounds in relation to spatial characteristics
The Journal of the Acoustical Society of America, 2009This study investigated the effect of a spatial factor, the magnitude of interaural cross-correlation (IACC) function, on subjective responses to heavy-weight floor impact sounds. Heavy-weight impact sounds were generated by a heavy/soft impact source (impact ball) in real apartments, so that impact sound pressure levels (SPLs) (LAmax) and IACC could ...
Jin Yong, Jeon +3 more
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Changes in heavy-weight impact sound isolation by construction stage in new residential buildings
The Journal of the Acoustical Society of America, 2023In Korea, 63% of the population lives in residential buildings. Due to the prevalence of residential buildings, there are constant disputes and complaints related to floor impact sound. To address the floor impact sound problems, the Ministry of Land, Infrastructure, and Transport (MOLIT) announced strong legal regulations from 2022.
Changyeon Yun +3 more
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The Journal of the Acoustical Society of America, 2021
We investigated the effects of a floating floor on heavy impact sound in the low-frequency range below 100 Hz with focus on the structural vibration. To verify the mechanism of amplifying the floor impact sound, field measurements were conducted before and after the installation of a floating floor while the other conditions were kept constant.
Ju-Hyung Kim +3 more
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We investigated the effects of a floating floor on heavy impact sound in the low-frequency range below 100 Hz with focus on the structural vibration. To verify the mechanism of amplifying the floor impact sound, field measurements were conducted before and after the installation of a floating floor while the other conditions were kept constant.
Ju-Hyung Kim +3 more
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Investigation of damping materials for heavy-weight floor impact sounds in concrete structures.
The Journal of the Acoustical Society of America, 2009Multi-layers of surface materials were investigated for the isolation of floor impact sounds in concrete structures. Both resilient and viscoelastic damping materials were tested according to the modified method of ANSI S2.22 for calculating elastic modulus and loss factor.
Jin Yong Jeon, Seung Yup Yoo
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INTER-NOISE and NOISE-CON Congress and Conference Proceedings, 2023
Strategies and challenge for carbon neutrality by 2050 had become important issues all over the world. In South Korea, as a move toward carbon neutrality, interest in wooden buildings is growing continuously. In order to spread the wooden buildings, especially wooden multi-residential buildings, high floor impact sound insulation performance is ...
Hyo-jin Lee +3 more
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Strategies and challenge for carbon neutrality by 2050 had become important issues all over the world. In South Korea, as a move toward carbon neutrality, interest in wooden buildings is growing continuously. In order to spread the wooden buildings, especially wooden multi-residential buildings, high floor impact sound insulation performance is ...
Hyo-jin Lee +3 more
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Noise Control Engineering Journal, 2011
JIS A 1418-2 standardized two heavy/soft impact sources, car-tire source and rubber ball source , for measurement of the heavy-weight floor impact sound. The rubber ball source is defined in ISO 140-11. The impact force and frequency characteristic differ between the car-tire source and the rubber ball source.
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JIS A 1418-2 standardized two heavy/soft impact sources, car-tire source and rubber ball source , for measurement of the heavy-weight floor impact sound. The rubber ball source is defined in ISO 140-11. The impact force and frequency characteristic differ between the car-tire source and the rubber ball source.
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Reduction of Heavy-weight Floor Impact Sound Using Electromagnetic Impact Damper
The Proceedings of Conference of Kansai Branch, 2022Motokazu SAWADA, Keisuke YAMADA
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The Journal of the Acoustical Society of America, 2011
This study investigated the relation between annoyance and single-number quantities to rate heavy-weight floor impact sound insulation. Laboratory experiments were conducted to evaluate the subjective response of annoyance resulting from heavy-weight floor impact sounds recorded in wooden houses.
Jongkwan, Ryu +5 more
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This study investigated the relation between annoyance and single-number quantities to rate heavy-weight floor impact sound insulation. Laboratory experiments were conducted to evaluate the subjective response of annoyance resulting from heavy-weight floor impact sounds recorded in wooden houses.
Jongkwan, Ryu +5 more
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