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一、当前楼板撞击隔声性能不良的原因在我国的住宅建筑中,采用的楼板形式很多,但撞击声级却很高。几乎没有一种常用楼板构造能符合住宅隔声标准要求的。图1常用住宅楼板构造的撞击声级的测定值,其撞击隔声指数在77—95分贝范围内。近几年来,在住宅中采用的轻质大板,其为12种撞击声级更高,撞击隔声指数在87—103分贝范围内。图2为7种轻质大楼板的实测值。
First, the reason for the poor sound insulation performance of the current floor impact In our country’s residential buildings, there are many types of floor slabs, but the impact sound level is very high. There is almost no common floor structure that can meet the requirements of residential sound insulation standards. Figure 1 The measured value of the impact sound level of a common residential floor structure, with an impact sound insulation index in the 77-95 dB range. In recent years, the light weight slabs used in residential buildings have a higher impact sound level of 12 and an impact sound insulation index in the 87-103 dB range. Figure 2 shows the measured values of 7 light buildings.