한국건축시공학회지 (Journal of the Korea Institute of Building Construction)

  • 제21권6호
  • /
  • Pages.563-571
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  • 2021
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  • 1598-2033(pISSN)
  • /
  • 2233-5706(eISSN)
한국건축시공학회 (The Korean Institute of Building Construction)
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외기온도 및 시험체 크기를 고려한 콘크리트의 간이-단열온도 상승시험에 관한 실험적 연구

An Experimental Study on the Semi-Adiabatic Temperature Rise Test of Concrete Considering Outside Temperature and Specimen Size

  • On, Jeong-Kwon (Mooyong CM) ;
  • Kim, Young-Sun (Research & Development Institute, LOTTE Engineering & Construction) ;
  • Moon, Hyoung-Jae (Research & Development Institute, LOTTE Engineering & Construction) ;
  • Nam, Jeong-Soo (Department of Architectural Engineering, Chungnam National University) ;
  • Kim, Gyu-Yong (Department of Architectural Engineering, Chungnam National University)
  • 투고 : 2021.09.29
  • 심사 : 2021.11.22
  • 발행 : 2021.12.20
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초록

최근 초고층 아파트 및 주상복합 건축물의 증가로 두께 3m이상의 메가급 매스콘크리트 부재의 설계가 다수 수행되고 있다. 초고층 주상복합 건축물은 기초부재 뿐만 아니라 특수한 구조형태로 전이 보 및 슬라브 등과 같은 매스콘크리트 시공이 증가하고 있어 매스콘크리트의 온도균열저감에 관한 연구가 수행되고 있다. 매스콘크리트의 온도균열을 검토하기 위해서는 콘크리트 열특성 검토가 중요하나 현장에서 단열온도상승 시험기를 활용하기는 어렵기 때문에 간이-단열온도상승시험을 주로 활용한다. 본 연구에서는 간이-단열온도상승시험에 의한 콘크리트 열특성 결과의 정밀도를 향상시키기 위해 열손실을 보정하기 위한 방안과 열손실 보정에 미치는 다양한 요인을 검토하여 제시하였다.

Recently, due to the increase in high-rise apartment and residential-commercial complex buildings, a number of mega-class mass concrete members with a thickness of 3m or more have been designed. As the construction of mass concrete such as transfer beam and slab is increasing not only in foundation members but also in special structures, research on reducing temperature cracks in mass concrete is being conducted. To review temperature cracks in mass concrete, it is important to review the thermal properties of concrete, but it is difficult to use an adiabatic temperature rise tester in the field, so the semi-adiabatic temperature rise test is mainly used. In this study, to improve the accuracy of the results of concrete heat characteristics gained by the semi-adiabatic temperature rise test, various factors affecting heat loss compensation and methods were reviewed and presented.

키워드

과제정보

This work was supported by a National Research Foundation of Korea(NRF) grant funded by the Korea government (MSIT)(No. 2015R1A5A1037548).

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