KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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Effect of Reinforcement Ratio and Impact Velocity on Local Damage of RC Slabs

철근비 및 충돌속도가 RC 슬래브의 국부손상에 미치는 효과

  • 최현 (단국대학교 토목환경공학과) ;
  • 정철헌 (단국대학교 토목환경공학과) ;
  • 유현경 (단국대학교 토목환경공학과) ;
  • 김상윤 (한국원자력안전기술원 공학연구실)
  • Received : 2010.12.30
  • Accepted : 2011.05.20
  • Published : 2011.08.31
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Abstract

To analysis the effect of reinforcement ratio and impact velocity on local damage, a series of impact analyses are performed to predict local effects. According to these results, the reinforcement ratio has no effect on the penetration depth and perforation thickness, but notable change to the scabbing area were observed. The higher the missile velocity becomes, the greater the degree of local damage to the reinforced concrete slabs is. Analysis results will be useful in the impact-resistance design of containment buildings and structures.

RC 슬래브에 배근되는 철근비와 충격체의 충돌속도가 국부손상에 미치는 영향을 평가하기 위하여 일련의 충돌해석을 수행하였다. 해석결과, 철근비는 관입깊이 및 관통두께에 별 다른 영향을 미치지 않았으며, 후면 콘크리트의 탈락면적에는 큰 영향을 미치는 것으로 나타났다. 충격체의 충돌속도가 증가할수록 철근콘크리트 슬래브의 국부손상 정도는 증가하는 경향을 보였다. 이상의 해석결과는 격납건물 및 구조물의 내충격설계시 유용한 자료로 활용될 수 있을 것으로 기대된다.

Keywords

References

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