Cyclic Behavior of Seismically Non-Conforming Interior Reinforced Concrete Beam–Column Joints
The cyclic behavior of reinforced concrete (RC) beam–column joints (BCJs) is still one of the critical issues in structural engineering. In this context, for the purpose of gaining a more in-depth insight about the sophisticated behavior of BCJs under cyclic loading scenarios, the current work aims...
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MDPI AG
2025-01-01
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| Series: | Buildings |
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| author | Peyman Sabbahfar José Melo Aníbal Costa Humberto Varum Hugo Rodrigues |
| author_facet | Peyman Sabbahfar José Melo Aníbal Costa Humberto Varum Hugo Rodrigues |
| author_sort | Peyman Sabbahfar |
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| description | The cyclic behavior of reinforced concrete (RC) beam–column joints (BCJs) is still one of the critical issues in structural engineering. In this context, for the purpose of gaining a more in-depth insight about the sophisticated behavior of BCJs under cyclic loading scenarios, the current work aims to investigate the cyclic behavior of reinforced concrete beam–column joints. The cyclic behavior of four interior reinforced concrete beam–column joints, with plain and deformed bars, which are representative of the seismically non-conforming structures from the 1970s, were experimentally investigated. The corresponding results of the specimens were compared with each other to better understand and highlight the differences between the force–drift curves and envelopes and damage patterns of each of the specimens. Furthermore, a numerical validation of the laboratory testing results was established with the DIANA FEA code for both monotonic and cyclic loading scenarios, and the force–displacement plots were compared with the associated laboratory results for validation purposes. The crack propagation and final damage states of the numerical models of beam–column joints are presented and discussed in detail. The results showed good agreement between the numerical and experimental behavior, and a graphical representation of the critical regions affected by damages was also shown, which could ultimately contribute to future retrofitting solutions for strengthening the BCJ region in existing RC structures. |
| format | Article |
| id | doaj-art-5be99c29a6084f20ab10ab399bf377a8 |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-01-01 |
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| record_format | Article |
| series | Buildings |
| spelling | doaj-art-5be99c29a6084f20ab10ab399bf377a82025-01-24T13:26:09ZengMDPI AGBuildings2075-53092025-01-0115220210.3390/buildings15020202Cyclic Behavior of Seismically Non-Conforming Interior Reinforced Concrete Beam–Column JointsPeyman Sabbahfar0José Melo1Aníbal Costa2Humberto Varum3Hugo Rodrigues4CERIS, Department of Civil Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, PortugalCONSTRUCT-LESE, Department of Civil Engineering, Faculty of Engineering, University of Porto, 4099-002 Porto, PortugalCERIS, Department of Civil Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, PortugalCONSTRUCT-LESE, Department of Civil Engineering, Faculty of Engineering, University of Porto, 4099-002 Porto, PortugalCERIS, Department of Civil Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, PortugalThe cyclic behavior of reinforced concrete (RC) beam–column joints (BCJs) is still one of the critical issues in structural engineering. In this context, for the purpose of gaining a more in-depth insight about the sophisticated behavior of BCJs under cyclic loading scenarios, the current work aims to investigate the cyclic behavior of reinforced concrete beam–column joints. The cyclic behavior of four interior reinforced concrete beam–column joints, with plain and deformed bars, which are representative of the seismically non-conforming structures from the 1970s, were experimentally investigated. The corresponding results of the specimens were compared with each other to better understand and highlight the differences between the force–drift curves and envelopes and damage patterns of each of the specimens. Furthermore, a numerical validation of the laboratory testing results was established with the DIANA FEA code for both monotonic and cyclic loading scenarios, and the force–displacement plots were compared with the associated laboratory results for validation purposes. The crack propagation and final damage states of the numerical models of beam–column joints are presented and discussed in detail. The results showed good agreement between the numerical and experimental behavior, and a graphical representation of the critical regions affected by damages was also shown, which could ultimately contribute to future retrofitting solutions for strengthening the BCJ region in existing RC structures.https://www.mdpi.com/2075-5309/15/2/202beam–column jointsreinforced concrete (RC)concreteseismic behaviorcyclic test |
| spellingShingle | Peyman Sabbahfar José Melo Aníbal Costa Humberto Varum Hugo Rodrigues Cyclic Behavior of Seismically Non-Conforming Interior Reinforced Concrete Beam–Column Joints Buildings beam–column joints reinforced concrete (RC) concrete seismic behavior cyclic test |
| title | Cyclic Behavior of Seismically Non-Conforming Interior Reinforced Concrete Beam–Column Joints |
| title_full | Cyclic Behavior of Seismically Non-Conforming Interior Reinforced Concrete Beam–Column Joints |
| title_fullStr | Cyclic Behavior of Seismically Non-Conforming Interior Reinforced Concrete Beam–Column Joints |
| title_full_unstemmed | Cyclic Behavior of Seismically Non-Conforming Interior Reinforced Concrete Beam–Column Joints |
| title_short | Cyclic Behavior of Seismically Non-Conforming Interior Reinforced Concrete Beam–Column Joints |
| title_sort | cyclic behavior of seismically non conforming interior reinforced concrete beam column joints |
| topic | beam–column joints reinforced concrete (RC) concrete seismic behavior cyclic test |
| url | https://www.mdpi.com/2075-5309/15/2/202 |
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