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Volume 13
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Review

Non-Linear Analysis of Flat Slabs Prestressed with Unbonded Tendons Submitted to Punching Shear

by
Heraldo Brigo
1,
Luana J. Ashihara
1,
Marília G. Marques
2 and
Elyson A. P. Liberati
1,*
1
Civil Engineering Department, State University of Maringá, Maringá 87020-900, Brazil
2
Institute of Exact and Technological Sciences, Federal University of Viçosa, Rio Paranaiba 38810-000, Brazil
*
Author to whom correspondence should be addressed.
Buildings 2023, 13(4), 923; https://doi.org/10.3390/buildings13040923
Submission received: 8 March 2023 / Revised: 23 March 2023 / Accepted: 28 March 2023 / Published: 31 March 2023
(This article belongs to the Special Issue Mechanical Performance of Steel and Composite Beams)
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Abstract

This article describes a numerical study for the evaluation of the punching shear behavior of non-adherent prestressed flat slabs without shear reinforcement. Nonlinear three-dimensional models were used, along with the finite element method (FEA) through the ATENA software in order to validate the constitutive models adopted for concrete and steel. The numerical results were compared with the experimental results. The results revealed a good agreement among load capacity, deformations, and cracking panorama, as well as the relation between numerical and experimental failure loads. After validation, a parametric study was carried out to analyze the influence of tendon spacing, slab thickness, and column rectangularity in prestressed flat slabs. Finally, the results obtained in the numerical models in relation to the failure load were compared with the estimated values for the failure load according to the main normative predictions dealing with the flat slab system.
Keywords: punching shear; flat slabs; prestressed concrete; non-linear analysis punching shear; flat slabs; prestressed concrete; non-linear analysis

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MDPI and ACS Style

Brigo, H.; Ashihara, L.J.; Marques, M.G.; Liberati, E.A.P. Non-Linear Analysis of Flat Slabs Prestressed with Unbonded Tendons Submitted to Punching Shear. Buildings 2023, 13, 923. https://doi.org/10.3390/buildings13040923

AMA Style

Brigo H, Ashihara LJ, Marques MG, Liberati EAP. Non-Linear Analysis of Flat Slabs Prestressed with Unbonded Tendons Submitted to Punching Shear. Buildings. 2023; 13(4):923. https://doi.org/10.3390/buildings13040923

Chicago/Turabian Style

Brigo, Heraldo, Luana J. Ashihara, Marília G. Marques, and Elyson A. P. Liberati. 2023. "Non-Linear Analysis of Flat Slabs Prestressed with Unbonded Tendons Submitted to Punching Shear" Buildings 13, no. 4: 923. https://doi.org/10.3390/buildings13040923

APA Style

Brigo, H., Ashihara, L. J., Marques, M. G., & Liberati, E. A. P. (2023). Non-Linear Analysis of Flat Slabs Prestressed with Unbonded Tendons Submitted to Punching Shear. Buildings, 13(4), 923. https://doi.org/10.3390/buildings13040923

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