벽식 구조와 라멘 구조 프리캐스트 콘크리트 공동주택에서 싱글 패널 외벽과 샌드위치 패널 외벽 간 단열성능 비교 (Comparison of Insulation Performance between Single Panel and Sandwich Panel Exterior Walls in Precast Concrete Apartment Buildings with Load-bearing Wall Structures and Frame Structures)

서지정보

· 발행기관 : 대한건축학회
· 수록지 정보 : 대한건축학회논문집 / 41권 / 3호 / 281 ~ 289페이지
· 저자명 : 주나영, 송승영

초록

본 연구는 PC 공동주택 외벽-바닥 접합부에서 PC 샌드위치 패널과 PC 싱글 패널의 단열 성능을 비교 평가했다. 벽식 구조와 라멘 구조에 각각 두 패널을 적용해 3차원 정상 상태 열전달 시뮬레이션으로 에너지 성능과 결로 위험성을 분석한 결과, 벽식 구조에서는 샌드위치 패널이, 라멘 구조에서는 싱글 패널이 유효열관류율이 낮아 에너지 성능에 유리했다. 그러나 모든 경우에서 유효열관류율이 설계열관류율보다 높아 이에 대한 개선이 필요하다.

영어초록

The purpose of this study was to compare and evaluate the insulation performance of the precast concrete sandwich panels and single panelsat the exterior wall-floor joints of PC apartment buildings. The energy performance and the risk of condensation were asssessed by applyingsingle panels and sandwich panels to load-bearing wall structures and frame wall structures, respectively. For this purpose, a three-dimensionalsteady-state heat transfer simulation was conducted. The results showed that for the load-bearing wall structure, the effective U-factor of theexterior wall decreased by 33.2 % when the sandwich panel was applied, demonstrating a significant improvement in energy performance.
Conversely, for the frame structure, the effective U-factor of the exterior wall increased by 47.7 % when the sandwich panel was applied,indicating that it was not effective in enhancing energy performance. Furthermore, in all cases, The effective U-factor was higher than thedesign U-factor, suggesting significant heat loss due to thermal bridges at the exterior wall-floor joint.

참고자료

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