Journal of Wind Energy (풍력에너지저널)

Korea Wind Energy Association (한국풍력에너지학회)
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Structural Safety Evaluation of Stabbing System for Pre-Piling Jacket Substructure Considering Pile Construction Errors

파일의 시공오차를 고려한 스태빙시스템의 구조안전성 평가

  • Youngcheol Oh ;
  • Jaeyong Ryoo ;
  • Daeyong Lee
  • 오영철 (군산대학교 해상풍력연구원) ;
  • 류재용 ((주)케이베츠) ;
  • 이대용 (군산대학교 대학원 풍력에너지학과)
  • Received : 2023.08.05
  • Accepted : 2023.09.08
  • Published : 2023.09.30
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Abstract

A structural safety evaluation was conducted for the stabbing system for the pre-piling jacket substructure currently being developed in South Korea, considering pile construction errors due to its lateral movement that may occur during construction in the ocean. Based on (1) the maximum stress generated by the stabbing system, (2) the maximum rotational displacement of the guide cone, and (3) the maximum stress generated by the horizontal hydraulic pressure cylinder, the structural safety of the stabbing system was examined under the initial loading condition and three possible load combinations during its construction. In order to evaluate the structural safety of the stabbing system, a concept of stress safety factor (= Yield stress / Max. Von-Mises stress) was used. It was found that the stabbing system considered in this study has a sufficient margin of safety.

Keywords

Acknowledgement

본 연구는 산업통상자원부 재원으로 한국에너지기술평가원(KETEP)의 지원을 받아 수행되었습니다(No. 20214000000180, No. 202130300020110). 연구비 지원에 감사를 드립니다.

References

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