Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Characteristics of Spectral Matched Ground Motions Time Histories According to Seed Ground Motion Selection

원본 지반운동 시간이력에 따른 스펙트럼 부합 시간이력의 특성

  • Choi, Da Seul (Department of Civil Engineering, Pusan National University) ;
  • Ji, Hae Yeon (Department of Civil Engineering, Pusan National University) ;
  • Kim, Jung Han (Department of Civil Engineering, Pusan National University)
  • 최다슬 (부산대학교 토목공학과) ;
  • 지혜연 (부산대학교 토목공학과) ;
  • 김정한 (부산대학교 토목공학과)
  • Received : 2020.09.29
  • Accepted : 2020.12.07
  • Published : 2021.01.01
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Abstract

According to several seismic design standards, a ground motion time history should be selected similar to the design response spectrum, or a ground motion time history should be modified by matching procedure to the design response spectrum through the time-domain method. For the response spectrum matching procedure, appropriate seed ground motions need to be selected to maintain recorded earthquake accelerogram characteristics. However, there are no specific criteria for selecting the seed ground motions for applying this methodology. In this study, the characteristics of ground motion time histories between seed motions and spectral matched motions were compared. Intensity measures used in the design were compared, and their change by spectral matching procedure was quantified. In addition, the seed ground motion sets were determined according to the response spectrum shape, and these sets analyzed the response of nonlinear and equivalent linear single degrees of freedom systems to present the seed motion selection conditions for spectral matching. As a result, several considerations for applying the time domain spectral matching method were presented.

Keywords

Acknowledgement

이 논문은 2019년도 정부(교육부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업(No. 2019R1I1A3A01058812) 및 산업통상자원부(MOTIE)와 한국에너지기술평가원(KETEP)의 지원을 받아 수행한 연구과제(No. 20181510102410)입니다.

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