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논문 기본 정보

자료유형
학술저널
저자정보
Seung‑Ho Choi (University of Seoul) Jin‑Ha Hwang (Korea Conformity Laboratories) Sun‑Jin Han (University of Seoul) Hae‑Chang Cho (Technology Center) Jae Hyun Kim (University of Seoul) Kang Su Kim (University of Seoul)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.14 No.5
발행연도
2020.9
수록면
661 - 671 (11page)

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초록· 키워드

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The current design codes discuss the effective compressive strengths of columns, which reflect a decrease in load transfer performance that can occur when columns and slabs have different concrete compressive strengths. The effective compressive strength of a column increases as it is confined by the slab, and the design codes mandate three different effective compressive strengths for interior columns (confinement on four sides), exterior columns (confinement on three sides), and corner columns (confinement on two sides). For both corner and exterior columns, the confinement effect of the slab is significantly smaller than that for the interior column, and there is a more marked decrease in load transfer performance. However, there is still a lack of theoretical studies investigating the effective compressive strengths of the corner and exterior columns. Therefore, based on the analysis model established in previous research, this study has proposed an equation for calculating the effective compressive strengths of the corner, exterior and isolated columns without any confinement effects of the slab. In addition, axial loading tests of isolated columns were conducted and the proposed equation was verified.

목차

Abstract
1. Introduction
2. Detailed Model
3. Simplified Model
4. Experimental Research
5. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2020-532-001290838