定向结构板复合墙体吸声性能的研究

A Study on the Sound Absorption Property of OS Wallboard

采用驻波管法测定了3种定向结构板(OSB)复合墙体的吸声系数;分析了用定向结构板装饰内墙或用定向结构板复合墙体作内隔墙的房间的吸声量及混响时间,并与砖、混凝土结构建筑作了比较。结果表明,由定向结构板、空气层、玻璃棉构成的复合墙体在低频率范围内会出现共振现象,吸声性能比单层定向结构板有显著的增加,但在高频率范围内变化较小;与砖、混凝土结构建筑相比,用定向结构板装饰内墙或用定向结构板复合墙体作内隔墙的房间具有良好的吸声效果。

ThesoundabsorptioncoefficientofthreekindsOSBwallboardweretestedbythestationarywave method .Thesoundabsorptioncontentandthereverberationtimeofroomswithdifferentstructurewallswerecalcu latedtheoretically .TheresultsshowedthattheOSBwallbordcomposedbyOSB ,airandglasswoolhadagoodsound absorptionproperty,speciallyforlowfrequencysound .Comparedwithbrickandconcretebuildings,OSBbuilding hadabettersoundabsorptionproperty.