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Design Optimization of Safety Barrier Consisting of Steel Rail and CFRP Post

강재 레일과 CFRP 기둥으로 이루어진 방호울타리의 최적화 설계

  • Kim, Jung Joong (Department of Civil and Environmental Engineering, Sejong University) ;
  • Kim, Seung-Eock (Department of Civil and Environmental Engineering, Sejong University)
  • 김정중 (세종대학교 건설환경공학과) ;
  • 김승억 (세종대학교 건설환경공학과)
  • Received : 2013.05.03
  • Accepted : 2013.06.11
  • Published : 2013.06.30

Abstract

In this study a hybrid safety barrier system consisting of steel rail and carbon fiber reinforced polymer (CFRP) post is considered. W hile CFRP post is selected for impact energy reflection due to its high strength, steel rail is selected for impact energy absorption due to its high ductility. A numerical model considering the elastoplastic behavior of steel is formulated to simulate the dynamic responses of the hybrid system subject to an impact load. A hybrid roadside guard rail system of steel rail and CFRP post is proposed and analyzed with a case study. The numerical model for the hybrid roadside guard rail system is used to find optimized design of the proposed hybrid system.

Keywords

References

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Cited by

  1. Composite Action in Masonry Columns Due to Damage and Creep Interaction vol.5, pp.2, 2014, https://doi.org/10.11004/kosacs.2014.5.2.027
  2. Design Optimization of Explosion-Resistant System Consisting of Steel Slab and CFRP Frame vol.14, pp.10, 2021, https://doi.org/10.3390/ma14102589