Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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A Study on Impact Resistance Properties with Composition Materials and Installation Conditions of Protective Panel

방호 패널의 구성 재료 및 설치 조건에 따른 내충격 특성에 관한 연구

  • Seok, Won-Kyun (Research & Development Institute, LOTTE E&C) ;
  • Kim, Young-Sun (Research & Development Institute, LOTTE E&C) ;
  • Lee, Yae-Chan (Department of Architectural Engineering, Chungnam National University) ;
  • Nam, Jeong-Soo (Department of Architectural Engineering, Chungnam National University) ;
  • Kim, Gyu-Yong (Department of Architectural Engineering, Chungnam National University)
  • Received : 2023.09.20
  • Accepted : 2023.11.23
  • Published : 2023.12.20
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Abstract

This study suggested that protective panels should be installed as sacrificial members as a safety design method for structures with potential explosions such as hydrogen charging stations to minimize direct damage to the structure and have resilience. To this end, the focus of the experiment is on quantitatively evaluating the impact of the structure when the protection panel is installed closely or spaced apart from the structure in a high-speed collision situation of the projectile. The experimental design used steel plates instead of concrete structural members mainly used in the past for excellent reproducibility, and the impact of structural members was compared and analyzed through deformation differences on the back of the steel plate. In addition, the impact of changes in the physical properties of the elastic body used as a separation material for the protective member and the difference in shock wave transmission time according to the protective member and the elastic body on the structural member was investigated.

본 연구에서는 수소 충전소와 같은 폭발 가능성을 가진 구조물들의 안전 설계 방안으로 방호패널이 희생 부재로 설치되어 구조물의 직접적인 피해를 최소화하고 회복 탄력성을 가질 수 있어야 한다고 제시하였다. 이를 위해 비상체의 고속 충돌 상황에서 방호 패널이 구조물과 밀착 또는 이격 설치되었을 때 구조물이 받는 영향을 정량적으로 평가하는데 실험의 초점을 맞추고 있다. 실험 설계는 우수한 재현성을 위해 기존에 주로 사용한 콘크리트 구조부재 대신 강판을 사용하며, 철판 배면의 변형 차이를 통해 구조부재의 충격을 비교·분석하였다. 또한, 방호 부재의 이격재로 사용한 탄성체의 물성 변화와 방호부재 및 탄성체에 따른 충격파 전달 시간의 차이가 구조부재에 미치는 영향을 조사하였다.

Keywords

Acknowledgement

This work was supported by LOTTE E&C Research & Development Institute grant funded by the LOTTE E&C.

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