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Effects of Specimen Depth on Flexural Compressive Strength of Concrete
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 Title & Authors
Effects of Specimen Depth on Flexural Compressive Strength of Concrete
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 Abstract
Currently, in evaluating a flexural strength of a concrete member, the effect of specimen depth has not been systematically studied, even though its effect on ultimate strength of a section is very important. For all types of loading conditions, the trend is that the strength of a member tends to decrease when the member depth increases. In this study, the influence of specimen depth on flexural compressive strength of concrete member was examined experimentally. A series of C-shaped specimens subjected to axial compressive force and bending moment were tested using three geometrically similar specimens with different length-to depth ratios (h/c = 1, 2 and 4) which have compressive strength of 55 MPa. The results indicate that the flexural compressive strength decreased as the specimen depth increased. A model equation was derived based on regression analyses of the experimental data. Also, the results show that ultimate strain decreases as the specimen depth increases. Finally, a general model equation for the depth effect is proposed.
 Keywords
size effect;specimen depth;C-shaped specimen;flexural compressive strength;
 Language
English
 Cited by
1.
노치가 있는 콘크리트 실험체의 축압축 강도에 대한 크기효과,이성태;김봉준;김진근;

한국콘크리트학회논문집, 2000. vol.12. 6, pp.99-108 crossref(new window)
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