木構樓板衝擊音量測分析系統建構與隔音性能評估之研究

Establishment of Measurement Analysis System and Evaluation of Insulation Performance for Wooden Floor Impact Sound

蔡玥涵(Yueh-hen Tsai)

指導教授 ： 林芳銘

國立屏東科技大學/農學院/木材科學與設計系所/碩士(2012年)

https://doi.org/10.6346/NPUST.2012.00021

摘要

近年來全球綠色環保觀念已是趨勢，木質建築為符合永續環保之綠建材之一。而環保署日漸增多的住戶陳情案件不難發現現今居民對自身環境品質的日趨重視，尤其對於建築物構造上採以木構造之輕質樓板相對於RC構造之重質樓板，其板衝擊音較為嚴重，故降低木構樓板衝擊音為一個重要的議題。本研究參照CNS 15160-1建立屏科大聲學實驗室並依據CNS 15160-11與CNS 8465-2建立木構樓板衝擊音實驗室量測標準作業程序與分析系統，並探討各種不同表面材之變因對樓板衝擊音之影響。結果顯示此實驗室之受音室背景噪音低於10 dB；且在聲壓分佈圖最大相距僅為2.9 dB得知實驗室為均勻聲場。而緩衝材在輕量衝擊源可改善2 ~ 4 dB，重量衝擊源則可改善5~15 dB；而當增加架高角材且無緩衝材之變因情況下，其輕量衝擊源可改善2 ~ 3 dB，重量衝擊源則無改善；制振材在輕量衝擊源可改善4 ~ 7 dB，重量衝擊源改善9 ~ 14 dB；填充材在輕量衝擊源可改善1 ~ 2 dB，重量衝擊源則改善2 ~ 3 dB。綜合評估分析結果可得知有緩衝材、架高角材、制振材與填充材的變因下，最大改善量在輕量衝擊源可改善20 dB，重量衝擊源可改善23 dB。

關鍵字

木構樓板 ； 樓板衝擊音 ； 表面材

並列摘要

In recent years, global trend is the concept of green, wooden building to comply with environmental sustainability is one of the green build. Increasing complaint cases of households of the Environmental Protection Department is not difficult to find residents to pay more and more attention to environmental quality. Particularly, the light wood structure floor impact sound than the heavy slab RC structure as a serious, therefore, wooden floor impact sound reduction is an important issue. This study established NPUST Acoustics Laboratory refers CNS 15160-1 and building wooden floor impact sound laboratory methods of measurement and analysis system based on CNS 15160-11 and CNS 8465-2. Discuss a variety of different surface materials of the change due to the impact on the floor impact sound. The results showThis laboratory sound room background noise by 10 dB below；and the sound pressure distribution in distance of only 2.9 dB maximum so that laboratory is a uniform sound field。Buffer material can be improved 2 ~ 4 dB on lightweight impact source and can also improve 5 ~ 15 dB on weight impact source. Increasing elevated angles and without buffer material, light impact source can be improved 2 ~ 3 dB and weight impact source can be not improved；damping material can be improved light impact source 4 ~ 7 dB, improving weight impact source 9 ~ 14 dB；fill material can improve the light impact source about 1 ~ 2 dB, weight impact source can improve 2 ~ 3 dB. Comprehensive evaluation results can be learned that undering the changes of buffer material、elevated angles、damping material and fill material, the maximum amount of improvement on light impact source can be improved 20 dB，weight impact source can be improved 23 dB.

並列關鍵字

Wooden floor ； Floor impact sound ； Surface material

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