Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
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A Study on the Performance Measurement System for the Reinforced Concrete Structure Electromagnetic Shielding Wall

철근 콘크리트 구조 전자파 차폐 벽체에 대한 성능측정 시스템 연구

  • Kim, Bo-Hyun (Safety Convergence Center, Korea Conformity Laboratories) ;
  • Cho, Kyeong-Yong (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Park, In-Wook (Safety Convergence Center, Korea Conformity Laboratories) ;
  • Oh, Jae-Hyun (Safety Convergence Center, Korea Conformity Laboratories) ;
  • Lee, Sang-Hoon (Safety Convergence Center, Korea Conformity Laboratories)
  • 김보현 ((재)한국건설생활환경시험연구원 안전융합센터) ;
  • 조경용 (연세대학교 전기전자공학과) ;
  • 박인욱 ((재)한국건설생활환경시험연구원 안전융합센터) ;
  • 오재현 ((재)한국건설생활환경시험연구원 안전융합센터) ;
  • 이상훈 ((재)한국건설생활환경시험연구원 안전융합센터)
  • Received : 2021.10.19
  • Accepted : 2021.11.01
  • Published : 2021.12.30
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Abstract

In this paper, the electromagnetic wave transmittance of the reinforced concrete structure wall was analyzed using the performance measurement system of electromagnetic wave shielding. Recently, electromagnetic wave shielding technologies on the reinforced concrete wall conditions have been studied, and the shielding effectiveness have been tested on unit cell size. However, the unit cell size tests have problems on that the measurement range for shielding performance is insufficient and it is difficult to reflect the real conditions of the concrete wall. Therefore, we constructed a shielding performance measurement system using a large sample of 2.2m × 2.2m like a real wall. To verify the measurement system, general reinforced concrete test samples were selected, and real shielding performance measurements and numerical analysis were proceeded. Test and numerical analysis results showed similar tendencies in the evaluation frequency range of 75MHz to 2GHz. Thus we validated the effectiveness of this shielding performance measurement system.

본 논문에서는 철근 콘크리트 구조 벽체에 대한 전자파 차폐성능 측정시스템을 이용한 전자파 투과율을 분석하였다. 최근 철근 콘크리트 벽체 조건에 대한 전자파 차폐 기술이 연구되고 있으며, 단위 셀 크기의 시험시편에 대한 차폐 성능 시험이 진행되고 있다. 그러나, 단위셀 크기의 시험은 차폐성능 측정범위가 부족하고, 실제 콘크리트 벽체 조건을 반영하기 어렵다는 문제점을 가지고 있다. 이에 대하여 실제 벽체와 유사한 크기와 구조의 2.2m × 2.2m 크기의 대형 벽체 시험시편을 측정할 수 있는 차폐성능 측정 시스템을 구성하였다. 측정 시스템 검증을 위하여 일반 철근 콘크리트 시험시편을 선정하여 실제 차폐성능 측정과 수치해석을 진행하였다. 평가 주파수 범위인 75MHz~2GHz에서 시험결과와 수치해석 결과가 서로 유사한 경향성을 보임이 확인되어 본 차폐성능 측정 시스템이 유효함을 검증하였다.

Keywords

Acknowledgement

본 연구는 국토교통부 건설기술연구사업(과제번호 : 21SCIP-B146646-04)의 연구비 지원에 의해 수행되었습니다.

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