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고온에 노출된 링형 강관 구속 콘크리트의 폭렬 및 초음파투과시간
황의철 ( Hwang Eui-chul ),김규용 ( Kim Guy-yong ),이상규 ( Lee Sang-kyu ),손민재 ( Son Min-jae ),편수정 ( Pyeon Su-jeong ),남정수 ( Nam Jeong-soo ) 한국건축시공학회 2019 한국건축시공학회 학술발표대회 논문집 Vol.19 No.1
In this study, the spalling and ultrasonic pulse transmission time of concrete were investigated according to compressive strength during heating. As a result, the higher the compressive strength of the concrete, the more the explosion occurs, which affects the cross-sectional loss and the spalling fragment size. Also, ultrasonic pulse transmission time was found to be strongly influenced by the section loss of concrete.