Two-Way Flexural Behavior of Donut-Type Voided Slabs View Full Text


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Article Info

DATE

2018-12

AUTHORS

Joo-Hong Chung, Hyung-Suk Jung, Baek-il Bae, Chang-Sik Choi, Hyun-Ki Choi

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. More... »

PAGES

26

Identifiers

URI

http://scigraph.springernature.com/pub.10.1186/s40069-018-0247-6

DOI

http://dx.doi.org/10.1186/s40069-018-0247-6

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1101636124


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