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논문 기본 정보

자료유형
학술저널
저자정보
Joo-Hong Chung (Hanyang University) Hyung-Suk Jung (Catholic Kwandong University) Baek-il Bae (Hanyang University) Chang-Sik Choi (Hanyang University) Hyun-Ki Choi (Kyungnam University)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.12 No.3
발행연도
2018.3
수록면
339 - 351 (13page)

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초록· 키워드

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Voided slab systems were developed using segmented void formers such as spherical or oval plastic balls for two-way slab applications. This type of slab is expected to behave like a general two-way reinforced concrete slab because it has segmented voids, rather than the continuous voids of hollow core slabs. However, the structural behaviors of two-way voided slabs with segmented voids have not been clearly verified. Therefore, this paper analyzes the possibility of applying a donut-type two-way voided slab, which was investigated with a 12-point two-way bending test focused on global behaviors, including its load bearing capacity, flexural stiffness, ductility, deflection, and load distribution. In addition, the design method of a donut-type two-way voided slab was reviewed through the yield line method. The test results showed that one donut-type two-way voided slab acted like a conventional two-way reinforced concrete slab with the load distributed evenly between the different directions; however, another donut-type two-way voided slab with different characteristics showed uneven load distribution with different crack patterns. In addition, the yield line method could predict the load bearing capacities of the donut-type voided slabs with approximately 95% accuracy.

목차

Abstract
1. Introduction
2. Experimental Program
3. Test Results and Discussion
4. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2018-532-001900029