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題名 | 輕量牆衝擊音之特性--實驗室實態衝擊分析=Characteristics of Impact Sound Radiated from Lightweight Walls--Analysis of Actual Impact in Acoustics Laboratory |
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作者 | 黃士賓; 黃進明; 賴榮平; 江哲銘; | 書刊名 | 建築學報 |
卷期 | 21 1997.06[民86.06] |
頁次 | 頁35-45 |
分類號 | 441.576 |
關鍵詞 | 輕量牆; 牆板衝擊音; 牆板振動加速度級; Lighweight walls; Wall impact sound; Wall vibration level; |
語文 | 中文(Chinese) |
中文摘要 | 建築物使用輕量牆板為隔間牆已日趨廣泛,然而國內尚未有牆板衝擊音之標準實 驗法,本研究主要目的在建立標準實驗法之過程中,探討衝擊音源及常用輕量牆板之特性。 本研究於音響實驗室進行輕量牆實態衝擊,檢討各衝擊音源之牆板衝擊音級及振動加速度級 ,分析結果以籃球及鐵錘代表軟性衝擊音源及硬性衝擊音源;軟性衝擊源產生之衝擊音頻譜 於低頻域較高,硬性衝擊源產生之衝擊音頻譜於中高頻域則較高。此外亦在實驗室內量測八 片輕量牆,探應各類輕量牆板在不同表面材、不同構造、及不同厚度條件下對抗衝擊音之差 異。結果顯示,以軟性衝擊源衝擊各牆板時,越厚重之牆板其衝擊音越低;對硬性衝擊音源 而言牆板表面材越柔軟者,其衝擊音越低。 |
英文摘要 | Impact sound levels and vibration levels are measured by performing actual impacts in acoustics laboratory. The results measured above are compared and classified into two kinds of impact sources. Between them, basketball is considered a soft impact source whose spectrum has a peak value at low frequency range. While the hammer, a hard one, its related impact sound spectrum displays higher level than those of the former in both of middle and high frequency ranges. Besides, this study also makes measurement on impact sound levels of eight lightweight walls and examines the impact-sound reduction by using various surface material, construction and thickness. Meanwhile, this study also shows using a soft impact source to impact a heavier lightweight wall will make the corresponding impact sound lower. As regard to use a hard impact source, the softer surface material of wall is, the corresponding lower impact sound is. |
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