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Bearing Capacity of Reinforced Concrete Beams with Damages in the Compressed Area Obtained Before the Workload of 50–70%
https://orcid.org/http://orcid.org/0000-0001-5282-6865
https://orcid.org/http://orcid.org/0000-0002-4823-6405
https://orcid.org/http://orcid.org/0000-0002-3437-1825
https://orcid.org/http://orcid.org/0000-0002-4226-9513
https://orcid.org/http://orcid.org/0000-0002-2978-668X
The article presents the experimental test results of the stress-strain state of reinforced concrete beams damaged in the compressed area before the load of 50… 70% of the bearing capacity of control undamaged samples. This range of load levels is due to the study of the impact of damage in bent reinforced concrete elements on the perception of the design load. The influence of damage and initial load on experimental samples’ bearing capacity and deformability is established. Experimental studies showed an increase of 3.83% in the bearing capacity of the samples that were damaged at the load 0.3 from the bearing capacity compared with the control samples that were damaged before the action of the load. The increase in vertical damage with a gradation of 10 mm under the action of load showed a significant increase in relative deformations in the stretched reinforcement relative to compressed concrete. The impact of the damages in the compressed area leads to complex spatial redistributions of internal forces under load, which requires consideration not only of the plane with maximum stresses but also additional planes.
Bearing Capacity of Reinforced Concrete Beams with Damages in the Compressed Area Obtained Before the Workload of 50–70%
https://orcid.org/http://orcid.org/0000-0001-5282-6865
https://orcid.org/http://orcid.org/0000-0002-4823-6405
https://orcid.org/http://orcid.org/0000-0002-3437-1825
https://orcid.org/http://orcid.org/0000-0002-4226-9513
https://orcid.org/http://orcid.org/0000-0002-2978-668X
The article presents the experimental test results of the stress-strain state of reinforced concrete beams damaged in the compressed area before the load of 50… 70% of the bearing capacity of control undamaged samples. This range of load levels is due to the study of the impact of damage in bent reinforced concrete elements on the perception of the design load. The influence of damage and initial load on experimental samples’ bearing capacity and deformability is established. Experimental studies showed an increase of 3.83% in the bearing capacity of the samples that were damaged at the load 0.3 from the bearing capacity compared with the control samples that were damaged before the action of the load. The increase in vertical damage with a gradation of 10 mm under the action of load showed a significant increase in relative deformations in the stretched reinforcement relative to compressed concrete. The impact of the damages in the compressed area leads to complex spatial redistributions of internal forces under load, which requires consideration not only of the plane with maximum stresses but also additional planes.
Bearing Capacity of Reinforced Concrete Beams with Damages in the Compressed Area Obtained Before the Workload of 50–70%
https://orcid.org/http://orcid.org/0000-0001-5282-6865
https://orcid.org/http://orcid.org/0000-0002-4823-6405
https://orcid.org/http://orcid.org/0000-0002-3437-1825
https://orcid.org/http://orcid.org/0000-0002-4226-9513
https://orcid.org/http://orcid.org/0000-0002-2978-668X
The article presents the experimental test results of the stress-strain state of reinforced concrete beams damaged in the compressed area before the load of 50… 70% of the bearing capacity of control undamaged samples. This range of load levels is due to the study of the impact of damage in bent reinforced concrete elements on the perception of the design load. The influence of damage and initial load on experimental samples’ bearing capacity and deformability is established. Experimental studies showed an increase of 3.83% in the bearing capacity of the samples that were damaged at the load 0.3 from the bearing capacity compared with the control samples that were damaged before the action of the load. The increase in vertical damage with a gradation of 10 mm under the action of load showed a significant increase in relative deformations in the stretched reinforcement relative to compressed concrete. The impact of the damages in the compressed area leads to complex spatial redistributions of internal forces under load, which requires consideration not only of the plane with maximum stresses but also additional planes.
Bearing Capacity of Reinforced Concrete Beams with Damages in the Compressed Area Obtained Before the Workload of 50–70%
Lecture Notes in Civil Engineering
Blikharskyy, Zinoviy (editor) / Lobodanov, Maksym (author) / Blikharskyy, Zinoviy (author) / Vegera, Pavlo (author) / Shnal, Taras (author) / Karpushyn, Andrii (author)
International Scientific Conference EcoComfort and Current Issues of Civil Engineering ; 2022 ; Lviv, Ukraine
2022-08-07
8 pages
Article/Chapter (Book)
Electronic Resource
English
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