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Title: Punching behavior of BubbleDeck type reinforced concrete slabs

Abstract

Abstract The BubbleDeck type slab (BD) is a reinforced concrete (RC) flat slab that includes recycled plastic hollow spheres (RPHS) in its core for decreasing its dead weight. However, punching capacity of BD slabs can be a critical aspect, thereby this work is devoted to assess experimentally its punching behavior. An experimental program composed of four real scale prototypes, representative of RC flat slabs in punching loading conditions, was carried out. Two of these slabs are of BD type, while the other two do not include the RPHS system, herein denominated as RC solid slab (SS). The test results show that all the tested slabs failed in punching after the occurrence of yield initiation of the flexural reinforcement. The punching capacity and the deflection at failure of BD type slab has decreased up to 14% and up to 44%, respectively, when compared to the corresponding SS type slab. A relatively small ductility index was obtained (between 1.51 and 2.65). In BD type slabs, the punching failure surface had tendency to propagate through the RPHS, at an inclination angle of about 45°.

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [1]
  1. Faculty of Technology, Department of Civil Engineering University of Brasilia‐UnB Brasília Brazil
  2. Department of Civil Engineering ISISE, Institute of Science and Innovation for Bio‐Sustainability (IB‐S), University of Minho Guimarães Portugal
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1572580
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Structural Concrete
Additional Journal Information:
Journal Name: Structural Concrete Journal Volume: 21 Journal Issue: 1; Journal ID: ISSN 1464-4177
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Country unknown/Code not available
Language:
English

Citation Formats

Nicácio, Wanderley G., Barros, Joaquim A. O., and Melo, Guilherme S. S. A. Punching behavior of BubbleDeck type reinforced concrete slabs. Country unknown/Code not available: N. p., 2019. Web. doi:10.1002/suco.201900176.
Nicácio, Wanderley G., Barros, Joaquim A. O., & Melo, Guilherme S. S. A. Punching behavior of BubbleDeck type reinforced concrete slabs. Country unknown/Code not available. https://doi.org/10.1002/suco.201900176
Nicácio, Wanderley G., Barros, Joaquim A. O., and Melo, Guilherme S. S. A. Thu . "Punching behavior of BubbleDeck type reinforced concrete slabs". Country unknown/Code not available. https://doi.org/10.1002/suco.201900176.
@article{osti_1572580,
title = {Punching behavior of BubbleDeck type reinforced concrete slabs},
author = {Nicácio, Wanderley G. and Barros, Joaquim A. O. and Melo, Guilherme S. S. A.},
abstractNote = {Abstract The BubbleDeck type slab (BD) is a reinforced concrete (RC) flat slab that includes recycled plastic hollow spheres (RPHS) in its core for decreasing its dead weight. However, punching capacity of BD slabs can be a critical aspect, thereby this work is devoted to assess experimentally its punching behavior. An experimental program composed of four real scale prototypes, representative of RC flat slabs in punching loading conditions, was carried out. Two of these slabs are of BD type, while the other two do not include the RPHS system, herein denominated as RC solid slab (SS). The test results show that all the tested slabs failed in punching after the occurrence of yield initiation of the flexural reinforcement. The punching capacity and the deflection at failure of BD type slab has decreased up to 14% and up to 44%, respectively, when compared to the corresponding SS type slab. A relatively small ductility index was obtained (between 1.51 and 2.65). In BD type slabs, the punching failure surface had tendency to propagate through the RPHS, at an inclination angle of about 45°.},
doi = {10.1002/suco.201900176},
journal = {Structural Concrete},
number = 1,
volume = 21,
place = {Country unknown/Code not available},
year = {2019},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/suco.201900176

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Cited by: 1 work
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