<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The article reports on the results of the numerical and the laboratory tests to determine the effect of concrete damages near support areas in compressed zone of the reinforced concrete beams on their residual bearing capacity of inclined sections. According to the experimental plan, 15 single-span freely supported experimental samples with dimensions of 100×200×1200 mm made with different artificial damages within the shear span a<sub>ν</sub> (1d, 2d, and 3d) were tested. The numerical test of prototypes was performed in software complex LIRA-SAPR 2017. The results of laboratory and numerical experiments showed good convergence regarding the bearing capacity, however, the nature of the fracture in samples B11-B14 did not match. Empirical - conducting laboratory experiments on samples using modern methods of measurement; numerical modelling – using software complex LIRA-SAPR 2017; analysis and statistical processing of the obtained research results; comparison of the obtained results; abstraction; generalization; deduction; formulation of the main conclusions and recommendations. The analysis found that the bearing capacity decreases with increased area of damage and shear span. Conducting the calculations in software complex LIRA-SAPR allows to predict the work elements and determine the bearing capacity with good accuracy, but in comparison with the real data there still are some differences in the character of destruction.</p></abstract>

The article reports on the results of the numerical and the laboratory tests to determine the effect of concrete damages near support areas in compressed zone of the reinforced concrete beams on their residual bearing capacity of inclined sections. According to the experimental plan, 15 single-span freely supported experimental samples with dimensions of 100×200×1200 mm made with different artificial damages within the shear span aν (1d, 2d, and 3d) were tested. The numerical test of prototypes was performed in software complex LIRA-SAPR 2017. The results of laboratory and numerical experiments showed good convergence regarding the bearing capacity, however, the nature of the fracture in samples B11-B14 did not match. Empirical - conducting laboratory experiments on samples using modern methods of measurement; numerical modelling – using software complex LIRA-SAPR 2017; analysis and statistical processing of the obtained research results; comparison of the obtained results; abstraction; generalization; deduction; formulation of the main conclusions and recommendations. The analysis found that the bearing capacity decreases with increased area of damage and shear span. Conducting the calculations in software complex LIRA-SAPR allows to predict the work elements and determine the bearing capacity with good accuracy, but in comparison with the real data there still are some differences in the character of destruction.

Investigation of Residual Bearing Capacity of Inclined Sections of Damaged Reinforced Concrete Beams

Croatian Regional Development Journal

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The article reports on the results of the numerical and the laboratory tests to determine the effect of concrete damages near support areas in compressed zone...

Investigation of Residual Bearing Capacity of Inclined Sections of Damaged Reinforced Concrete Beams

Published Online: Sep 13, 2021

Page range: 14 - 26

Received: May 07, 2020

Accepted: Jul 02, 2020

DOI: https://doi.org/10.2478/crdj-2021-0002

Keywords
experimental, beams, damage, residual capacity

© 2021 Klymenko Yevhenii et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Investigation of Residual Bearing Capacity of Inclined Sections of Damaged Reinforced Concrete Beams

Published Online: Sep 13, 2021

Page range: 14 - 26

Received: May 07, 2020

Accepted: Jul 02, 2020

DOI: https://doi.org/10.2478/crdj-2021-0002

Keywordsexperimental, beams, damage, residual capacity

© 2021 Klymenko Yevhenii et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
experimental, beams, damage, residual capacity