서지주요정보
콘크리트의 압축강도에 대한 크기효과 = Size effect for compressive strength of concrete
서명 / 저자 콘크리트의 압축강도에 대한 크기효과 = Size effect for compressive strength of concrete / 이성태.
저자명 이성태 ; Yi, Seong-Tae
발행사항 [대전 : 한국과학기술원, 2000].
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소장정보

등록번호

8011187

소장위치/청구기호

학술문화관(문화관) 보존서고

DCE 00006

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초록정보

The reduction phenomena of compressive strength with the size for the concrete is an important topic. However, in the present, appropriate analytical or experimental techniques of understanding this condition have still not been found. The research described herein were conducted to find out the size effect on the compressive strength of concrete members in two fields (i.e. axial compression and flexural compression). In the first field, the fracture mechanics type size effect on the compressive strength of cylindrical concrete specimens was studied, with the diameter and the height/diameter ratio of cylinder considered as the main parameters. For this purpose, theoretical and statistical analyses were conducted. The test results from literatures were curve fitted using Least Square Method(LSM) to obtain the new parameters for Modified Size Effect Law(MSEL). The proposed equation shows good agreement with the existing test results for concrete cylinders. In the second field, the size effect of a flexural compression member was investigated by experiments. For this purpose, a series of C-shaped specimens subjected to axial compressive load and bending moment was tested. Size effect was apparent, i.e., the flexural compressive strength at failure decreases as the specimen size increases. New parameter values of MSEL are suggested which well predicts the reduction phenomena of the strength. The MSEL curve graphed with new parameters is compared with uniaxial compressive strength of concrete cylinder test results. And the results show a much stronger size effect in C-shaped member compared to the cylinder members. Length and thickness effect of a flexural compression member was also investigated by experiments. Effect of specimen length and thickness were apparent. New parameter values of MSEL are suggested which well predicts the reduction phenomena of the strength. More general parameter values of MSEL are also suggested using the existing data. For C-shaped specimens with a length-to-depth ratios greater than 3.0, length effect of flexural compressive strengths is not apparent.

서지기타정보

서지기타정보
청구기호 {DCE 00006
형태사항 ix, 141 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : 희귀분석에 이용된 실험자료
저자명의 영문표기 : Seong-Tae Yi
지도교수의 한글표기 : 김진근
지도교수의 영문표기 : Jin-Keun Kim
수록잡지명 : "Size effect on compressive strength of plain and spirally reinforced concrete cylinders". ACI structural journal, vol. 96, no. 1, pp. 88-94 (1999)
학위논문 학위논문(박사) - 한국과학기술원 : 토목공학과,
서지주기 참고문헌 : p. 121-133
주제 크기효과
축압축강도
원주공시체
휨압축강도
C형 공시체
Size effect
Axial compressive strength
Cylinder specimen
Flexural compressive strength
C-shaped specimen
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