Two-Way Flexural Behavior of Donut-Type Voided Slabsopen access
- Authors
- Chung, Joo-Hong; Jung, Hyung-Suk; Bae, Baek-il; Choi, Chang-Sik; Choi, Hyun-Ki
- Issue Date
- Dec-2018
- Publisher
- 한국콘크리트학회
- Keywords
- voided slab; two-way flexural behavior; experimental investigation and load distribution
- Citation
- International Journal of Concrete Structures and Materials, v.12, no.1, pp.1 - 13
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- International Journal of Concrete Structures and Materials
- Volume
- 12
- Number
- 1
- Start Page
- 1
- End Page
- 13
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/148832
- DOI
- 10.1186/s40069-018-0247-6
- ISSN
- 1976-0485
- Abstract
- 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.
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