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Estimation of Path Attenuation Effect from Ground Motion in the Korean Peninsula using Stochastic Point-source Model

추계학적 점지진원 모델을 사용한 한반도 지반 운동의 경로 감쇠 효과 평가

  • Jee, Hyun Woo (Department of Architecture Engineering, Hanyang University) ;
  • Han, Sang Whan (Department of Architectural Engineering, Hanyang University)
  • 지현우 (한양대학교 건축공학과 대학원) ;
  • 한상환 (한양대학교 건축공학과)
  • Received : 2019.08.14
  • Accepted : 2019.12.03
  • Published : 2020.01.01

Abstract

The stochastic point-source model has been widely used in generating artificial ground motions, which can be used to develop a ground motion prediction equation and to evaluate the seismic risk of structures. This model mainly consists of three different functions representing source, path, and site effects. The path effect is used to emulate decay in ground motion in accordance with distance from the source. In the stochastic point-source model, the path attenuation effect is taken into account by using the geometrical attenuation effect and the inelastic attenuation effect. The aim of this study is to develop accurate equations of ground motion attenuation in the Korean peninsula. In this study, attenuation was estimated and validated by using a stochastic point source model and observed ground motion recordings for the Korean peninsula.

Acknowledgement

Supported by : 국토교통과학기술진흥원

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