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Effect of reinforcement curtailment on deflections, strain and crack development in RC slabs under catenary action

Dirk Gouverneur (UGent) , Robby Caspeele (UGent) and Luc Taerwe (UGent)
(2013) MAGAZINE OF CONCRETE RESEARCH. 65(22). p.1336-1347
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Abstract
The present paper is concerned with the development and influence of catenary action in one-way slabs. The testing of two longitudinally restrained large-scale slab specimens subjected to an accidental event (removal of the central support) and subsequent monotonic vertical loading until collapse is described. The observed increase in the load-carrying capacity as well as the change in the structural behaviour in slabs that are restrained against inward movement is investigated. Whereas the first specimen is designed with continuous flexural reinforcement over the entire length, the second slab test is subjected to the same loading scheme and has the same geometrical dimensions, but differs in the reinforcement arrangement, considering a more conventional reinforcement curtailment. Comparisons are made with respect to the development of displacements, strains and cracks in the critical sections. The failure of the top reinforcement bars over the supports occurs at approximately the same load level. In addition, the failure mode (failure of the bottom reinforcement bars over the supports) is the same for both slabs. However, the final collapse load in case of the slab with curtailed reinforcement is strongly reduced due to the reduction of reinforcement in the bottom layer over the supports. The results of this contribution are of particular importance with respect to the validation of numerical and deterministic models related to the development of tensile membrane action in concrete slabs in the framework of robustness assessment.
Keywords
BEHAVIOR, CONCRETE SLABS, MEMBRANE ACTION

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MLA
Gouverneur, Dirk, et al. “Effect of Reinforcement Curtailment on Deflections, Strain and Crack Development in RC Slabs under Catenary Action.” MAGAZINE OF CONCRETE RESEARCH, vol. 65, no. 22, 2013, pp. 1336–47, doi:10.1680/macr.13.00141.
APA
Gouverneur, D., Caspeele, R., & Taerwe, L. (2013). Effect of reinforcement curtailment on deflections, strain and crack development in RC slabs under catenary action. MAGAZINE OF CONCRETE RESEARCH, 65(22), 1336–1347. https://doi.org/10.1680/macr.13.00141
Chicago author-date
Gouverneur, Dirk, Robby Caspeele, and Luc Taerwe. 2013. “Effect of Reinforcement Curtailment on Deflections, Strain and Crack Development in RC Slabs under Catenary Action.” MAGAZINE OF CONCRETE RESEARCH 65 (22): 1336–47. https://doi.org/10.1680/macr.13.00141.
Chicago author-date (all authors)
Gouverneur, Dirk, Robby Caspeele, and Luc Taerwe. 2013. “Effect of Reinforcement Curtailment on Deflections, Strain and Crack Development in RC Slabs under Catenary Action.” MAGAZINE OF CONCRETE RESEARCH 65 (22): 1336–1347. doi:10.1680/macr.13.00141.
Vancouver
1.
Gouverneur D, Caspeele R, Taerwe L. Effect of reinforcement curtailment on deflections, strain and crack development in RC slabs under catenary action. MAGAZINE OF CONCRETE RESEARCH. 2013;65(22):1336–47.
IEEE
[1]
D. Gouverneur, R. Caspeele, and L. Taerwe, “Effect of reinforcement curtailment on deflections, strain and crack development in RC slabs under catenary action,” MAGAZINE OF CONCRETE RESEARCH, vol. 65, no. 22, pp. 1336–1347, 2013.
@article{4221865,
  abstract     = {{The present paper is concerned with the development and influence of catenary action in one-way slabs. The testing of two longitudinally restrained large-scale slab specimens subjected to an accidental event (removal of the central support) and subsequent monotonic vertical loading until collapse is described. The observed increase in the load-carrying capacity as well as the change in the structural behaviour in slabs that are restrained against inward movement is investigated. Whereas the first specimen is designed with continuous flexural reinforcement over the entire length, the second slab test is subjected to the same loading scheme and has the same geometrical dimensions, but differs in the reinforcement arrangement, considering a more conventional reinforcement curtailment. Comparisons are made with respect to the development of displacements, strains and cracks in the critical sections. The failure of the top reinforcement bars over the supports occurs at approximately the same load level. In addition, the failure mode (failure of the bottom reinforcement bars over the supports) is the same for both slabs. However, the final collapse load in case of the slab with curtailed reinforcement is strongly reduced due to the reduction of reinforcement in the bottom layer over the supports. The results of this contribution are of particular importance with respect to the validation of numerical and deterministic models related to the development of tensile membrane action in concrete slabs in the framework of robustness assessment.}},
  author       = {{Gouverneur, Dirk and Caspeele, Robby and Taerwe, Luc}},
  issn         = {{0024-9831}},
  journal      = {{MAGAZINE OF CONCRETE RESEARCH}},
  keywords     = {{BEHAVIOR,CONCRETE SLABS,MEMBRANE ACTION}},
  language     = {{eng}},
  number       = {{22}},
  pages        = {{1336--1347}},
  title        = {{Effect of reinforcement curtailment on deflections, strain and crack development in RC slabs under catenary action}},
  url          = {{http://doi.org/10.1680/macr.13.00141}},
  volume       = {{65}},
  year         = {{2013}},
}
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