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2019 Vol.21, Issue 3 Preview Page

Research Paper

The evaluation of penetration protective performance using applied element method for reinforced concrete lining

AEM을 이용한 철근콘크리트 라이닝의 관입 방호성능 평가

Gun-Wook Joo1*
주 건욱1*
1Researcher, Agency for Defense Development
1정회원, 국방과학연구소 연구원
* Corresponding Author
31 May 2019. pp. 377-396
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Abstract

Explosion after penetration of a warhead in an underground structure generally causes considerable displacement, breakage and extensive damage to the target. Therefore, in order to reduce the damage effect, it is required to design an underground structure protection against penetration. In this study, major factors for improvement of penetration protection performance of reinforced concrete underground structures using applied element method are divided into strength (concrete UCS) and density (concrete thickness, reinforcement layers, reinforcement diameters, reinforcement spacings). Based on these major factors, this study performed numerical analysis of simulation of dynamic response by penetrators under various conditions and analyzed the results. The results of this study are expected to be used as basis materials to improve penetration protection performance of reinforced concrete underground structures.

Keywords
Penetration
Protective design
Reinforced concrete underground structure
Applied element method
Extreme loading for structure

지하구조물의 내부에 탄두가 관입 후 폭발할 경우 일반적으로 목표물에 상당한 변위, 파손 및 광범위한 피해를 유발한다. 따라서 이러한 피해효과를 줄이기 위해서는 관입에 저항할 수 있는 지하구조물 방호 설계가 요구된다. 본 연구에서는 응용요소법을 이용한 철근콘크리트 지하구조물의 관입 방호성능 향상을 위한 주요 인자들을 크게 강도(콘크리트 압축강도) 및 밀도(콘크리트 두께, 철근의 피복 층수, 철근의 직경, 철근의 배근간격)로 나누었다. 이를 바탕으로 다양한 조건에서 관통자에 의한 동적응답 시뮬레이션 전산해석 연구를 수행하고 그 결과를 분석하였다. 본 연구 결과는 철근콘크리트 지하구조물의 관입 방호성능 향상을 위한 기초자료로 활용될 수 있을 것으로 기대된다.

키워드
관입
방호성능
철근콘크리트 지하구조물
AEM
ELS
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Information
  • Publisher :Korean Tunneling and Underground Space Association
  • Publisher(Ko) :한국터널지하공간학회
  • Journal Title :Journal of Korean Tunnelling and Underground Space Association
  • Journal Title(Ko) :한국터널지하공간학회 논문집
  • Volume : 21
  • No :3
  • Pages :377-396
  • Received Date : 2019-03-13
  • Revised Date : 2019-04-26
  • Accepted Date : 2019-05-02
  • DOI :https://doi.org/10.9711/KTAJ.2019.21.3.377
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