Polymer Flexible Joint as a Repair Method of Concrete Elements: Flexural Testing and Numerical Analysis
Polymer Flexible Joint (PFJ) is a method for repairs of concrete elements, which enables carrying loads and large deformations effectively. This article presents the possibility of applying PFJ on beams subjected to bending and describes the influence of such joints on concrete elements. An experime...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/24/5732 |
| _version_ | 1797544582420889600 |
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| author | Łukasz Zdanowicz Szymon Seręga Marcin Tekieli Arkadiusz Kwiecień |
| author_facet | Łukasz Zdanowicz Szymon Seręga Marcin Tekieli Arkadiusz Kwiecień |
| author_sort | Łukasz Zdanowicz |
| collection | DOAJ |
| description | Polymer Flexible Joint (PFJ) is a method for repairs of concrete elements, which enables carrying loads and large deformations effectively. This article presents the possibility of applying PFJ on beams subjected to bending and describes the influence of such joints on concrete elements. An experimental investigation was conducted to determine the behavior of concrete in a four-point bending test. The research program included flexural tests of plain concrete elements with a notch, as well as tests of elements which were repaired with PFJ after failure. Based on the experimental results, the numerical characteristics of analyzed polymer and concrete were calibrated. A nonlinear numerical model is developed, which describes the behavior of concrete elements and polymer in the experiments. The model is used to numerically analyze deformations and stresses under increasing load. The influence of flexible joint on concrete elements is described and behavior of elements repaired with PFJ is compared to original elements. Particular attention was paid to the stress redistribution in concrete. The application of flexible joint positively influences load capacity of the connected concrete elements. Furthermore, because of stress redistribution, connected elements can bear larger deformations than original ones. PFJ can therefore be considered an efficient repair method for connecting concrete elements. |
| first_indexed | 2024-03-10T14:02:34Z |
| format | Article |
| id | doaj.art-f5e37045f23c45cdab158d33d2a71811 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T14:02:34Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-f5e37045f23c45cdab158d33d2a718112023-11-21T01:00:45ZengMDPI AGMaterials1996-19442020-12-011324573210.3390/ma13245732Polymer Flexible Joint as a Repair Method of Concrete Elements: Flexural Testing and Numerical AnalysisŁukasz Zdanowicz0Szymon Seręga1Marcin Tekieli2Arkadiusz Kwiecień3Faculty of Civil Engineering, Cracow University of Technology, 31-155 Cracow, PolandFaculty of Civil Engineering, Cracow University of Technology, 31-155 Cracow, PolandFaculty of Civil Engineering, Cracow University of Technology, 31-155 Cracow, PolandFaculty of Civil Engineering, Cracow University of Technology, 31-155 Cracow, PolandPolymer Flexible Joint (PFJ) is a method for repairs of concrete elements, which enables carrying loads and large deformations effectively. This article presents the possibility of applying PFJ on beams subjected to bending and describes the influence of such joints on concrete elements. An experimental investigation was conducted to determine the behavior of concrete in a four-point bending test. The research program included flexural tests of plain concrete elements with a notch, as well as tests of elements which were repaired with PFJ after failure. Based on the experimental results, the numerical characteristics of analyzed polymer and concrete were calibrated. A nonlinear numerical model is developed, which describes the behavior of concrete elements and polymer in the experiments. The model is used to numerically analyze deformations and stresses under increasing load. The influence of flexible joint on concrete elements is described and behavior of elements repaired with PFJ is compared to original elements. Particular attention was paid to the stress redistribution in concrete. The application of flexible joint positively influences load capacity of the connected concrete elements. Furthermore, because of stress redistribution, connected elements can bear larger deformations than original ones. PFJ can therefore be considered an efficient repair method for connecting concrete elements.https://www.mdpi.com/1996-1944/13/24/5732polyurethaneflexible jointconcrete repairstress redistribution |
| spellingShingle | Łukasz Zdanowicz Szymon Seręga Marcin Tekieli Arkadiusz Kwiecień Polymer Flexible Joint as a Repair Method of Concrete Elements: Flexural Testing and Numerical Analysis Materials polyurethane flexible joint concrete repair stress redistribution |
| title | Polymer Flexible Joint as a Repair Method of Concrete Elements: Flexural Testing and Numerical Analysis |
| title_full | Polymer Flexible Joint as a Repair Method of Concrete Elements: Flexural Testing and Numerical Analysis |
| title_fullStr | Polymer Flexible Joint as a Repair Method of Concrete Elements: Flexural Testing and Numerical Analysis |
| title_full_unstemmed | Polymer Flexible Joint as a Repair Method of Concrete Elements: Flexural Testing and Numerical Analysis |
| title_short | Polymer Flexible Joint as a Repair Method of Concrete Elements: Flexural Testing and Numerical Analysis |
| title_sort | polymer flexible joint as a repair method of concrete elements flexural testing and numerical analysis |
| topic | polyurethane flexible joint concrete repair stress redistribution |
| url | https://www.mdpi.com/1996-1944/13/24/5732 |
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