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논문 기본 정보

자료유형
학술저널
저자정보
채원규 (신구전문대학 토목과)
저널정보
한국안전학회 한국안전학회지 한국안전학회지 제9권 제1호
발행연도
1994.1
수록면
127 - 133 (7page)

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초록· 키워드

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In this thesis, the fracture tests were performed on a series of reinforced concrete to investigate the variation of strength and the fracture safety of reinforced concrete structures. The specimens were of the same rectangular cross-section, of effective height 24cm and width 30cm and their span was 330cm. The three point loading system is used in the fracture tests. In these tests, the yield load, the ultimate load, the flexural strain and the mid-span displacement were detected. According to the results of these tests, the fracture behavior of reinforced concrete structures can be summarized as the follows : There Is no difference between the singly and doubly reinforced rectangular beams before the yield load. But from the yield load up to the ultimate load, the mid-span displacement of the singly reinforced rectangular beams are about two times larger than those of the doubly reinforced rectangular beams, The fracture energy of the doubly reinforced rectangular beams are one and half times compared to that of the singly reinforced rectangular beams. Based on the above investigation, it could be concluded that the doubly reinforced rectangular beam is more efficient to resist the brittle fracture than the singly reinforced rectangular beam.

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