木结构楼板隔声性能研究

Research on Sound Insulation of Wooden Structure Floor

楼板隔声是建筑构件隔声的重要研究内容之一,本文通过有限元方法对木结构楼板的空气隔声性能进行相关研究。首先采用COMSOL Multiphysics软件构建楼板的有限元模型,并对木结构楼板隔声性能的影响因素进行了分析。结果表明,选取玻璃纤维棉作为弹性垫层的材料能够有较好的隔声效果,提高弹性材料的密度,降低混凝土的密度,增加轻质发泡混凝土层和弹性垫层的厚度有利于增加楼板隔声效果。

The sound insulation of the floor plays an important part in the sound insulation of building elements.In this paper,the air sound insulation performance of wooden structure floor is investigated by finite element method.Firstly,the finite element model of the floor is constructed by COMSOL Multiphysics.Then,a detailed parametric research is carried out to study the influence of some parameters on the sound insulation of the floor.The results show that when taking glass fiber cotton as elastic interlayers,it can achieve good sound insulation effect,improve the density of elastic material,reduce the density of concrete,and increase the thickness of light foamed concrete layer and elastic cushion,which is conducive to improve the sound insulation effect of floor slab.