Investigation of Bending Behaviors of GFRP-Strengthened Steel RHS Profiles with Experimental and Numerical Models
The contribution of GFRP (glass fiber reinforced polymer) fabric to the bending behavior of steel RHS (rectangular hollow section) beams was investigated by experimental and numerical studies. In the first part of the study, small-scale RHS profiles were strengthened with GFRP fabrics in ten differe...
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| Format: | Article |
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MDPI AG
2023-05-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/13/5/1216 |
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| author | Elif Boru Emine Aydın Mohammad Saber Sadid |
| author_facet | Elif Boru Emine Aydın Mohammad Saber Sadid |
| author_sort | Elif Boru |
| collection | DOAJ |
| description | The contribution of GFRP (glass fiber reinforced polymer) fabric to the bending behavior of steel RHS (rectangular hollow section) beams was investigated by experimental and numerical studies. In the first part of the study, small-scale RHS profiles were strengthened with GFRP fabrics in ten different configurations in the experimental study. The bending behavior of the profiles was determined by three-point bending tests, and the best strengthening configuration was decided. The numerical models were verified with the experimental results. In the second part, real-size RHS beams were strengthened with the optimum strengthening configuration. In the results of the study, it was determined that the U-shaped strengthening provided the maximum contribution to the RHS beams bending behavior. The minimum GFRP size to be used in strengthening is important, as an insufficient GFRP length leads to GFRP failure, and the number of layers should be increased for more load capacity. A total of 25% of the net beam span was determined to be the minimum GRFP length. In full-size beams, a double-layer GFRP increased the maximum load-bearing capacity by 7%. Formulas were obtained to determine the contribution of single and double-layered U-shaped GFRP to the shape factors of the RHS. With the formulations, the plastic moment capacity can be determined. |
| first_indexed | 2024-03-11T03:53:05Z |
| format | Article |
| id | doaj.art-c67ee69a121140f6b0f07d03d6e2d9e6 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-11T03:53:05Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-c67ee69a121140f6b0f07d03d6e2d9e62023-11-18T00:45:10ZengMDPI AGBuildings2075-53092023-05-01135121610.3390/buildings13051216Investigation of Bending Behaviors of GFRP-Strengthened Steel RHS Profiles with Experimental and Numerical ModelsElif Boru0Emine Aydın1Mohammad Saber Sadid2Civil Engineering Department, Faculty of Technology, Sakarya University of Applied Sciences, Sakarya 54187, TurkeyCivil Engineering Department, Faculty of Technology, Sakarya University of Applied Sciences, Sakarya 54187, TurkeyCivil Engineering Department, Engineering Faculty, Sakarya University, Sakarya 54187, TurkeyThe contribution of GFRP (glass fiber reinforced polymer) fabric to the bending behavior of steel RHS (rectangular hollow section) beams was investigated by experimental and numerical studies. In the first part of the study, small-scale RHS profiles were strengthened with GFRP fabrics in ten different configurations in the experimental study. The bending behavior of the profiles was determined by three-point bending tests, and the best strengthening configuration was decided. The numerical models were verified with the experimental results. In the second part, real-size RHS beams were strengthened with the optimum strengthening configuration. In the results of the study, it was determined that the U-shaped strengthening provided the maximum contribution to the RHS beams bending behavior. The minimum GFRP size to be used in strengthening is important, as an insufficient GFRP length leads to GFRP failure, and the number of layers should be increased for more load capacity. A total of 25% of the net beam span was determined to be the minimum GRFP length. In full-size beams, a double-layer GFRP increased the maximum load-bearing capacity by 7%. Formulas were obtained to determine the contribution of single and double-layered U-shaped GFRP to the shape factors of the RHS. With the formulations, the plastic moment capacity can be determined.https://www.mdpi.com/2075-5309/13/5/1216RHSGFRP fabricbending behaviorexperimentFEMformulation |
| spellingShingle | Elif Boru Emine Aydın Mohammad Saber Sadid Investigation of Bending Behaviors of GFRP-Strengthened Steel RHS Profiles with Experimental and Numerical Models Buildings RHS GFRP fabric bending behavior experiment FEM formulation |
| title | Investigation of Bending Behaviors of GFRP-Strengthened Steel RHS Profiles with Experimental and Numerical Models |
| title_full | Investigation of Bending Behaviors of GFRP-Strengthened Steel RHS Profiles with Experimental and Numerical Models |
| title_fullStr | Investigation of Bending Behaviors of GFRP-Strengthened Steel RHS Profiles with Experimental and Numerical Models |
| title_full_unstemmed | Investigation of Bending Behaviors of GFRP-Strengthened Steel RHS Profiles with Experimental and Numerical Models |
| title_short | Investigation of Bending Behaviors of GFRP-Strengthened Steel RHS Profiles with Experimental and Numerical Models |
| title_sort | investigation of bending behaviors of gfrp strengthened steel rhs profiles with experimental and numerical models |
| topic | RHS GFRP fabric bending behavior experiment FEM formulation |
| url | https://www.mdpi.com/2075-5309/13/5/1216 |
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