Different sound waves through the junction between the two floor plates

Abstract

It analyzes the sound waves of different amplitudes of 20 cm thick floor concret plates coupled by 20 and 200 cm junction. According to calculations, when the length of the junction is small, the amplitude of the longitudinal wave is increasing when frequency accelerates. When the length of the junction is increasing, the flexural, longitudinal, and distortional wave amplitude has a high resonant character. When the length of the junction increases 10 times, the wave amplitude has a repeated every 1000 Hz resonance character. Traveling distortional waves have the maximum amplitude of junction.. Not flexural and longitudinal waves, but traveling distortional waves.have the maximum amplitude of floor. In a small jungtion length, the maximum amplitude in the frequency ranges between 3000 to 7000 Hz in a traveling distortional wave in a floor plate. When the junction length is large, all the wave amplitudes in floor plate have a repetitive.