Vibration and noise reduction for building floor structures based on new composite material vibration isolation pads

Abstract

The frequent occurrence of geological disasters poses a significant threat to human life and the safety of property. To enhance the seismic performance and reduce noise in buildings, this study proposes the design of building floor structures with a new composite vibration isolation pad. Carbon nanocoils/styrene-butadiene composites are utilized to create vibration reduction devices. Experimental results demonstrate that the compression set rates of carbon nanocoil composite rubber are 4.83% and 2.07% at filling amounts of 1% and 3%, respectively. Additionally, the compression set rates of carbon nanotube composite rubber are 13.79% and 6.90%, respectively. Among these materials, styrene-butadiene exhibits the most significant performance improvement when combined with carbon nano coil. With an optimal layout of 25 devices, the floor dynamic amplification coefficient can be reduced by 8.4% and the building floor noise can be reduced by approximately 75%. This optimization significantly reduces the dynamic response and also provides a certain level of noise reduction effect.