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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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Carbon fiber is a material that has a very high tensile strength and is flexible, so it is easy to manufacture into a desired shape. If carbon fiber is processed into a thin carbon sheet and then a circular concrete column is wound, the compressive strength can be improved due to the confined effect. In this study, the characteristics of multi-layered carbon sheets were identified by applying the Classical Lamination Theory. To directly measure tensile strength and lateral restraint pressure, tensile test and split disk test specimens were fabricated and then material experiments were conducted using a 2,000kN capacity UTM. The lateral restraint pressure of carbon sheet tube was about 5.4MPa and the tensile strength was 3,790Mpa, which is about 9.5 times the strength of steel reinforcing bars.
The equation for predicting compressive strength of circular concrete confined by carbon sheet tubes manufactured at various angles was proposed through regression analysis. It is judged that this can be used as an analytical equation that can predict the strength in advance when a concrete column whose bearing strength has been lowered due to an earthquake, etc. is reinforced with a carbon sheet.
The equation for predicting compressive strength of circular concrete confined by carbon sheet tubes manufactured at various angles was proposed through regression analysis. It is judged that this can be used as an analytical equation that can predict the strength in advance when a concrete column whose bearing strength has been lowered due to an earthquake, etc. is reinforced with a carbon sheet.
목차
ABSTRACT
1. 서론
2. 고전적층판 이론 및 재료실험
3. 해석 및 실험결과
4. 결론
References
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