One-way shear strength of circular voided reinforced concrete floor slabs
- Authors
- Chung, Joo-Hong; Choi, Hyun-Ki; Lee, Seung-Chang; Choi, Chang-Sik
- Issue Date
- May-2015
- Publisher
- ICE PUBLISHING
- Keywords
- buildings; concrete structures; slab & plates; stress analysis; structures and design
- Citation
- PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-STRUCTURES AND BUILDINGS, v.168, no.5, pp.336 - 350
- Indexed
- SCIE
SCOPUS
- Journal Title
- PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-STRUCTURES AND BUILDINGS
- Volume
- 168
- Number
- 5
- Start Page
- 336
- End Page
- 350
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/157326
- DOI
- 10.1680/stbu.14.00044
- ISSN
- 0965-0911
- Abstract
- Generally, voided reinforced concrete floor slabs in building structures have a lower shear strength compared with solid slabs owing to the reduction in their cross-sectional area. This study shows that the void shape and material of the void-shaper also influence the shear strength of voided slabs. To verify these assumptions, one-way shear tests were conducted for four test specimens. The first was a conventional solid slab and the others were voided slabs. The voids had toroidal or 'doughnut' shapes as well as non-doughnut shapes. The void-shaper was made of polypropylene plastic and glass-fibre-reinforced plastic. The test results showed that the shear strength of doughnut-type voided slabs was 73-78% of a solid slab and was superior to that of existing voided slabs. The shear crack angle changed with the void shape. A finite-element analysis was conducted to evaluate the influence of these parameters on the shear behaviour of the doughnut-type voided slab.
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