Experiment on the optimization of sound insulation performance of residential floor structure

Sound insulation performance of floor is the basic functional requirements of green buildings. However, without special sound insulation design and construction processing, the requirements of sound insulation design indexes are difficult to be met in reality. As a component of space separation, the floor should be emphasized, especially the impact sound insulation performance of the floor. In this paper, the reinforced concrete residential floor is taken as the reference, and the influence factors on the impact sound insulation performance of floor are considered, including type, thickness, mass density and dynamic stiffness of elastic material, and the quality and thickness of floating plate. Besides, construction methods for different series of floating floor are presented, and the impact sound insulation change is studied through theoretical and experimental analysis. This study provides technical support and case experience for the sound insulation and noise reduction design of the floor, so as to improve the sound insulation performance of the floor.