Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Korean Seismic Station Site Effect Estimation Using Generalized Inversion Technique

일반 역산 기법을 활용한 한국 지표 관측소 부지 효과 평가

  • Jee, Hyun Woo (Department of Architecture Engineering, Hanyang University) ;
  • Han, Sang Whan (Department of Architectural Engineering, Hanyang University)
  • 지현우 (한양대학교 건축공학과) ;
  • 한상환 (한양대학교 건축공학과)
  • Received : 2022.12.02
  • Accepted : 2023.02.02
  • Published : 2023.03.01
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Abstract

The 2017 Pohang earthquake afflicted more significant economic losses than the 2016 Gyeongju earthquake, even if these earthquakes had a similar moment magnitude. This phenomenon could be due to local site conditions that amplify ground motions. Local site effects could be estimated from methods using the horizontal-to-vertical spectral ratio, standard spectral ratio, and the generalized inversion technique. Since the generalized inversion method could estimate the site effect effectively, this study modeled the site effects in the Korean peninsula using the generalized inversion technique and the Fourier amplitude spectrum of ground motions. To validate the method, the site effects estimated for seismic stations were tested using recorded ground motions, and a ground motion prediction equation was developed without considering site effects.

Keywords

Acknowledgement

본 연구는 교육부와 한국연구재단 3단계 산학연협력 선도대학 육성사업(LINC 3.0)의 지원으로 진행된 것입니다.

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