Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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Methodology of Strength Analysis of Socket for AL Handrail in Offshore Platform

해양플랫폼 알루미늄 핸드레일 적용을 위한 소켓 구조강도 평가법

  • Kim, Yeon-Ho (Offshore Design Team, Samsung heavy industries) ;
  • Park, Joo-Shin (Ship and Offshore Research Institutes, Samsung heavy industries) ;
  • Seo, Jung-Kwan (Department of Naval Architecture and Ocean Engineering/The Korea Ship and Offshore Research Institute, Pusan National University)
  • 김연호 (삼성중공업 해양설계팀 프로) ;
  • 박주신 (삼성중공업 조선해양연구소 프로) ;
  • 서정관 (부산대학교 조선해양공학과/선박해양플랜트기술연구원)
  • Received : 2022.01.12
  • Accepted : 2022.04.27
  • Published : 2022.04.30
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Abstract

The aluminum handrails used for promoting structural strength and weight reduction of the topside in an offshore platform are designed according to international standards (ISO, NORSOK, and Austria Standard), and consider the most conservative load combinations. Existing aluminum handrails are bolted to a socket when installed on the topside of a platform, and the amount of deflection of the handrail is largely influenced by the socket design. However, the importance of socket design has been overlooked, and furthermore, separate evaluation procedures or guidance for socket design are ambiguous. Therefore, a series analysis was performed for estimating the structural strength of aluminum handrails to obtain the governing parameters that minimize their deflection against loads. Experimental verification was performed to validate the structural safety of the new model, and we confirmed that all were satisfied within allowable deflection according to international standards. The developed model could be used in several areas in the future as it is lighter and more productive compared to existing models from overseas makers.

해양플랜트 상구구조물의 중량 절감을 위한 알루미늄 핸드레일 적용을 위하여, 소재의 항복강도 향상 및 관련 국제기준에 부합한 강도평가를 통하여 설계가 이루어지고 있다. 기존에 해양프로젝트에 설치된 알루미늄 핸드레일은 플랫폼에 설치 시 소켓에 볼트 연결되며, 소켓의 설계 정도에 따라서 핸드레일 처짐 량이 크게 좌우된다. 그러나 국제기준에서는 소켓에 대한 중요성 언급이 없으며, 별도의 평가 절차나 기준도 모호하다. 따라서 본 연구를 통해서 핸드레일 소켓 설계 시 고려해야 하는 주요 인자들에 대한 강도 해석을 수행하고, 최적의 치수를 도출하였다. 개발모델의 구조 안전성을 확보하기 위하여, 실험을 통한 검증을 수행하였고, 국제기준에서 요구하는 허용 처짐 이내에서 모두 만족함을 확인하였다. 개발된 국산화 모델은 기존 외국 제조사와 비교하여 가볍고, 생산성이 향상되어 향후 많은 분야에서 사용이 될 것으로 판단된다.

Keywords

References

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