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2025 Vol.38, Issue 5

Research Paper

Analytical Study of the Structural Performance of Tetrapods with Fiber-Reinforced Concrete

섬유보강 콘크리트를 적용한 테트라포드의 구조성능에 대한 해석적 연구

Jong-Sun Park1
,
Hyeoung-Deok Lee2
,
Taek Hee Han3
,
Jiho Moon4*
박 종선1
,
이 형덕2
,
한 택희3
,
문 지호4*
1Master’s course, Department of Integrated Energy and Infra System, Kangwon National University, Chuncheon, 24341, Korea
2Post-doctoral researcher, Department of Civil Engineering, Kangwon National University, Chuncheon, 24341,Korea
3Ph.D., Principal Researcher, Korea Institute of Ocean Science and Technology (KIOST), Busan, 49111, Korea
4Associate Professor, Department of Civil Engineering, Kangwon National University, Chuncheon, 24341, Korea
1강원대학교 에너지･인프라융합학과 석사과정
2강원대학교 건축･토목･환경공학부 박사후 연구원
3한국해양과학기술원 책임연구원
4강원대학교 건축･토목･환경공학부 부교수
*Corresponding Author
31 October 2025. pp. 287-296
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Abstract

Tetrapods are typically constructed using plain concrete, which exhibits brittle failure behavior. To address this issue and enhance crack resistance, fiber-reinforced concrete (FRC) has emerged as a promising alternative. This study evaluates the structural performance of tetrapods incorporating FRC employing finite element analysis (FEA). The proposed numerical model was validated against experimental results from previous studies. A subsequent parametric study was conducted with the fracture energy of FRC as the primary variable. A representative range of fracture energy values, identified via a comprehensive literature review, was applied in the simulations. The results demonstrate that tensile cracking is the dominant failure mode in tetrapods, and that the incorporation of FRC significantly improves their ductility.

Keywords
tetrapod
fiber-reinforced concrete
fracture energy
finite element analysis

테트라포드는 일반적으로 무근콘크리트로 제작되어 취성적 거동을 보인다. 이러한 파괴 양상을 개선하고 균열 저항성을 증진시키기 위한 방안으로 섬유보강 콘크리트를 사용하는 것이 대안 중 하나가 될 수 있다. 본 연구에서는 유한요소해석을 통해 섬유보강 콘크리트를 적용한 테트라포드의 구조성능을 평가하는데 중점을 두었다. 이를 위해 기존 연구자들의 실험 결과와 비교하여 유한요소모델을 검증하였으며 이후 변수해석을 진행하였다. 변수해석의 주요 변수는 섬유보강 콘크리트의 파괴에너지로 설정하였다. 문헌조사를 통해 다양한 섬유보강 콘크리트의 파괴에너지 범위를 도출하고 이를 변수해석에 적용하였다. 해석 결과, 테트라포드의 파괴는 균열에 의한 인장 파괴가 지배하는 것으로 나타났으며, 섬유보강 콘크리트의 사용은 테트라포드의 연성을 향상시킬 수 있는 것으로 확인되었다.

키워드
테트라포드
섬유보강 콘크리트
파괴에너지
유한요소해석
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Information
  • Publisher :Computational Structural Engineering Institute of Korea
  • Publisher(Ko) :한국전산구조공학회
  • Journal Title :Journal of the Computational Structural Engineering Institute of Korea
  • Journal Title(Ko) :한국전산구조공학회 논문집
  • Volume : 38
  • No :5
  • Pages :287-296
  • Received Date : 2025-05-20
  • Revised Date : 2025-07-04
  • Accepted Date : 2025-07-21
  • DOI :https://doi.org/10.7734/COSEIK.2025.38.5.287
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