The purpose of this study is to analyse site natural period for estimating resonance of soil-structure. The natural period of seismic accelerometer installed site is calculated with HVSR(Horizontal to Vertical Spectral Ratio) proposed by Nakamura. To analyze natural period, a micro tremor is used at several sites. The result can be used for the study of soil-structure resonance, site classification and the site amplification effects.

• 박기종(국립재난안전연구원) | Park, Ki-jong 교신저자
• 진영지(국립재난안전연구원) | Jin, Young-ji
• 성지영(국립재난안전연구원) | Seong, Ji-young
• 장성희(국립재난안전연구원) | Chang, Sunghee