- 學位論文
樓板表面構材對重量衝擊音隔音性能影響之研究
Effects of Floor Covering Material and Structure on the Insulation Performace of Heavyweight Impact Sound
摘要
近年來國內住宅建築朝向高層化發展趨勢，上下樓層住戶間常產生樓板衝擊音噪音干擾問題，目前輕量衝擊源樓板衝擊音，已由建築法規訂定基準管制（110年1月1日施行），而重量衝擊源樓板衝擊音則尚未有規範。故本研究針對不同樓板表面構材組構，以標準尺寸試體（10.5m2）探討其重量衝擊源樓板衝擊音隔音性能，依施工方式分為乾式及濕式，前者係指木地板或塑膠地磚、PVC地墊類面材結合緩衝材；後者為水泥砂漿層結合緩衝材之樓板表面材構造。藉由量測分析掌握樓板表面材重量衝擊音頻率特性，再以多種小尺寸試體（0.36m2）進行緩衝材組構之降低量性能探討，以及提升隔音性能之對策方法。 研究結果顯示，在標準尺寸及小尺寸試體頻率特性呈現相同趨勢，鋪設乾式樓板表面材條件下，如木地板、石塑地板面材結合緩衝材，或塑膠地磚、PVC地墊類之樓板表面材於250~630 Hz重量衝擊音有放大之現象，但在50~250 Hz之頻率範圍，雖無提供有效之隔音性能，但其重量衝擊音並未發生放大之現象。多數濕式樓板表面構材在50~250 Hz呈現重量衝擊音放大，於250~630 Hz頻率範圍之重量衝擊源樓板衝擊音有獲得明顯改善。 小尺寸試體以乾式面材結合發泡橡膠類緩衝材在250 Hz呈現厚度增加其隔音性能隨之提升；濕式面材結合發泡緩衝材隨緩衝材密度及單位面積重數值增加其隔音性能亦獲得提升。 關鍵詞：重量衝擊音、樓板表面構材
並列摘要
Recent years, residential buildings in Taiwan have tended to high-rise, and floor impact sound is often generated between floors. At present, the impact sound of the lightweight floor impact sources, has been controlled by the benchmarks set in the building regulations. (Executed on January 1, 2021), while the impact sound of the heavyweight floor impact sound, has not yet been regulated. Therefore, according to different combinations of floor surface materials, this study uses a standard size specimen (10.5m2) to discuss the sound insulation performances on heavyweight floor impact sound. According to the construction structure, it is divided into dry and wet-type, the former refers to the wooden floor or plastic floor tiles, PVC, floor mat surface material combined with cushioning material; the latter is a structure of cement mortar layer with cushioning material. After understanding the frequency properties of heavyweight floor impact sound on floor surface materials through measurements and analysis, a variety of small-size specimens (0.36m2) were used to discuss the reduction performances on different combinations of cushioning materials, as well as solutions to improve sound insulation performance. The results show, that the standard and small-size specimens, both under the conditions having similar frequency trends, the dry-type surface structure, such as wooden floor, plastic floor tiles, PVC, floor mat surface materials, the heavyweight floor impact sound increases between 250-630Hz, however in the frequency range of 50-250Hz, though it does not provide effective sound insulation performance, the heavyweight impact sound has not been amplified. On the contrary, most wet-type floor surface materials amplify the heavyweight impact sound at 50-250Hz, while in the range of 250-630Hz, the sound insulation performance has been significantly improved. According to the measurements in small-sized specimens, with dry-type surface structure combined with foamed rubber cushioning material, at 250Hz, the sound insulation performance improves as the thickness of the foam increases; the combination of wet-type surface structure and foamed cushioning material improves the sound insulation performance as the density and weight per unit area of the cushioning material increase. Key word: Heavyweight impact sound, Floor covering material