One-way shear strength of circular voided reinforced concrete floor slabs

Title
One-way shear strength of circular voided reinforced concrete floor slabs
Authors
최창식
Keywords
buildings; concrete structures; slab & plates; stress analysis; structures and design
Issue Date
2015-02
Publisher
ICE PUBLISHING
Citation
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-STRUCTURES AND BUILDINGS, v. 168, NO 5, Page. 336-350
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.
URI
http://hdl.handle.net/20.500.11754/21825http://www.icevirtuallibrary.com/doi/10.1680/stbu.14.00044
ISSN
0965-0911
DOI
http://dx.doi.org/10.1680/stbu.14.00044
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
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