Recently, a noise problem in the apartment has been broadly and socially issued. In this study, a numerical approach, i.e., vibration-acoustic interactive analysis, has been considered to investigate the relationship between damping ratio and the sound level in the apartment. From results, if the damping ratio has a range of 0 to 4 percentage, then the sound pressure level has been decreased. Finally, these results would be helpful to make a decision for developing of a high performance floor slab minimizing inter-layer noise.

• 박상기(한국건설기술연구원) | Park, Sang-Ki 교신저자
• 허병욱(한국건설기술연구원) | Heo, Byung-Wook
• 박순응(한국철도공사, 시설기술단) | Park, Soon-Eung