- 會議論文
建物樓板衝擊音之音能降低研究
Evaluation of impact sound reduction of concrete floor with various coverings
摘要
隨著居住品質意識的抬頭，我國人民除了會將價格、坪數及機能作為居住環境的考量外，也將噪音影響程度作為買房依據；加上民眾大多居住於公寓及大廈等環境中，因此現階段對於房屋內部噪音之防治更是有所要求，有別於過去僅強調外部噪音之降低，亦逐漸重視住宅樓板之隔音議題。本研究以探討建物樓板衝擊音之音能降低研究，模擬實驗樓板表面材發泡聚苯乙烯（Expanded Poly-Styrene；簡稱為EPS）與目前傳統常見玻璃棉、岩棉及橡膠緩衝材衝擊音隔音性能差異，並加以測試及分析隔音性能上之效果，以期達到防制噪音之目的，進而運用於建築樓板隔音。本研究依測試結果將25mm EPS之K值與噪音降低值（ΔdB）進行線性迴歸分析，得出K值與（ΔdB）為正相關之線性關係。單一緩衝材料隔音效果最佳為30K EPS，最高可隔絕37.9dB，且單一緩衝材料EPS之隔音效果皆優於複合材料；另並針對不同緩衝材結合樓板表面裝修材之衝擊音隔音性能綜合分析，研究發現EPS結合塑膠地板之隔音效能為最佳，最高可隔絕28.4dB。本研究將實驗所測得之隔音分貝量與緩衝材料進行成本分析，以尋求最經濟之隔音效益，分析結果發現25mm之25K EPS為最具經濟效益之隔音材料，其每坪隔絕1dB所需花費成本為7.57元。本論文研究之成果能做為建物樓板衝擊音隔音材料之參考。
並列摘要
With the rising awareness of living quality, people will not only consider price, space and function, but also consider the impact of noise as the basis for buying a house. Nowadays, most people live in apartments and buildings, so there are more requirements for the prevention of noise inside the house and the sound insulation of residential floors. In this research, the differences in the impact sound insulation performance of EPS and the typical floor surface materials such as glass wool, rock wool, and rubber buffer materials were analyzed to achieve the purpose of noise control. According to the test results and linear regression analysis, the linear relationship between the K value of 25mm EPS and ΔdB is positive correlation. The best sound insulation effect of a single buffer material is 30K EPS, which can isolate up to 37.9 dB, and the sound insulation effect of a single EPS buffer material is better than composite materials. According to the comprehensive analysis of the impact sound insulation performance of different buffer materials combined with floor surface decoration materials, it can be concluded that the best sound insulation performance is EPS combined with plastic floor materials, which can isolate up to 28.4 dB. In order to seek the most economical sound insulation effect, this research conducted a cost analysis between the ΔdB measured in the experiment and the buffer material. It is concluded that 25K EPS of 25mm is the most economical sound insulation material, and the cost of 1dB insulation per square meter is 2.29 NT dollars.