Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Seismic Fragility Analysis of Container Crane Considering Far-Fault and Near-Fault Ground Motion Characteristics

원거리와 근거리 지진파의 특성을 고려한 항만 컨테이너 크레인의 지진취약도 분석

  • Park, Ju-Hyun (Department of Civil Engineering, Inha University) ;
  • Min, Jiyoung (Department of Structural Engineering Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Lee, Jong-Han (Department of Civil Engineering, Inha University)
  • 박주현 (인하대학교 토목공학과) ;
  • 민지영 (한국건설기술연구원 구조연구본부) ;
  • 이종한 (인하대학교 사회인프라공학과)
  • Received : 2022.11.30
  • Accepted : 2023.01.04
  • Published : 2023.03.01
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Abstract

The recent increase in earthquake activities has highlighted the importance of seismic performance evaluation for civil infrastructures. In particular, the container crane essential to maintaining the national logistics system with port operation requires an exact evaluation of its seismic response. Thus, this study aims to assess the seismic vulnerability of container cranes considering their seismic characteristics. The seismic response of the container crane should account for the structural members' yielding and buckling, as well as the crane wheel's uplifting derailment in operation. The crane's yielding and buckling limit states were defined using the stress of crane members based on the load and displacement curve obtained from nonlinear static analysis. The derailment limit state was based on the height of the rail, and nonlinear dynamic analysis was performed to obtain the seismic fragility curves considering defined limit states and seismic characteristics. The yield and derailment probabilities of the crane in the near-fault ground motion were approximately 1.5 to 4.7 and 2.8 to 6.8 times higher, respectively, than those in the far-fault ground motion.

Keywords

Acknowledgement

본 논문은 산업통상자원부 및 한국산업기술평가관리원(KEIT) 활용서비스 패키지 구축 및 운용사업(20011780)의 한국건설기술연구원 지원에 의해 수행되었으며, 이에 감사드립니다.

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