Shear and Flexural Strengthening of Steel Beams with Thick Carbon Fiber Reinforced Polymer Laminate
In this paper, shear and flexural behavior of structural steel beams strengthened by high modulus carbon fiber reinforced polymer (CFRP) laminates are presented. Totally, 18 steel specimens including 6 un-strengthened beams as control specimens and 12 strengthened steel beams with simple supports we...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Semnan University
2021-11-01
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| Series: | Journal of Rehabilitation in Civil Engineering |
| Subjects: | |
| Online Access: | https://civiljournal.semnan.ac.ir/article_5196_b4ac9671c5e1b591b26c103eca17b0cb.pdf |
| _version_ | 1818285001194602496 |
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| author | Mohammad Shekarchi Alireza Khaloo |
| author_facet | Mohammad Shekarchi Alireza Khaloo |
| author_sort | Mohammad Shekarchi |
| collection | DOAJ |
| description | In this paper, shear and flexural behavior of structural steel beams strengthened by high modulus carbon fiber reinforced polymer (CFRP) laminates are presented. Totally, 18 steel specimens including 6 un-strengthened beams as control specimens and 12 strengthened steel beams with simple supports were tested under 3-point bending test set-up. All specimens were strengthened using the bonded system. Influence of different parameters including length of steel beams, section size of specimens, number of CFRP laminates, and location of CFRP laminates were studied. Based on anticipated failure modes, the bonded laminates were implemented on the surface of tension flange, compression flange, and web of beams. Three failure modes of flexural, shear, and lateral-torsional buckling failures were observed in the tested beams. The main goal of these experiments was to evaluate the enhancement in load capacity, beam ductility, and initial stiffness. The results showed that the yield load, ultimate load capacity, and energy absorption of strengthened steel beams improved up to 15, 29 and 28 percent, respectively. Finally, in order to predict test results and compare the actual and predicted valves, analytical and numerical studies were carried out. |
| first_indexed | 2024-12-13T01:01:45Z |
| format | Article |
| id | doaj.art-a2191c52b75c4495a55e92002d5a3b41 |
| institution | Directory Open Access Journal |
| issn | 2345-4415 2345-4423 |
| language | English |
| last_indexed | 2024-12-13T01:01:45Z |
| publishDate | 2021-11-01 |
| publisher | Semnan University |
| record_format | Article |
| series | Journal of Rehabilitation in Civil Engineering |
| spelling | doaj.art-a2191c52b75c4495a55e92002d5a3b412022-12-22T00:04:39ZengSemnan UniversityJournal of Rehabilitation in Civil Engineering2345-44152345-44232021-11-019414817010.22075/jrce.2021.22339.14735196Shear and Flexural Strengthening of Steel Beams with Thick Carbon Fiber Reinforced Polymer LaminateMohammad Shekarchi0Alireza Khaloo1Department of Civil Engineering, Sharif University of Technology, Tehran, IranDepartment of Civil Engineering, Sharif University of Technology, Tehran, IranIn this paper, shear and flexural behavior of structural steel beams strengthened by high modulus carbon fiber reinforced polymer (CFRP) laminates are presented. Totally, 18 steel specimens including 6 un-strengthened beams as control specimens and 12 strengthened steel beams with simple supports were tested under 3-point bending test set-up. All specimens were strengthened using the bonded system. Influence of different parameters including length of steel beams, section size of specimens, number of CFRP laminates, and location of CFRP laminates were studied. Based on anticipated failure modes, the bonded laminates were implemented on the surface of tension flange, compression flange, and web of beams. Three failure modes of flexural, shear, and lateral-torsional buckling failures were observed in the tested beams. The main goal of these experiments was to evaluate the enhancement in load capacity, beam ductility, and initial stiffness. The results showed that the yield load, ultimate load capacity, and energy absorption of strengthened steel beams improved up to 15, 29 and 28 percent, respectively. Finally, in order to predict test results and compare the actual and predicted valves, analytical and numerical studies were carried out.https://civiljournal.semnan.ac.ir/article_5196_b4ac9671c5e1b591b26c103eca17b0cb.pdfflexural behaviorshear behaviorlateral torsional buckling3-point bending testcfrp laminate |
| spellingShingle | Mohammad Shekarchi Alireza Khaloo Shear and Flexural Strengthening of Steel Beams with Thick Carbon Fiber Reinforced Polymer Laminate Journal of Rehabilitation in Civil Engineering flexural behavior shear behavior lateral torsional buckling 3-point bending test cfrp laminate |
| title | Shear and Flexural Strengthening of Steel Beams with Thick Carbon Fiber Reinforced Polymer Laminate |
| title_full | Shear and Flexural Strengthening of Steel Beams with Thick Carbon Fiber Reinforced Polymer Laminate |
| title_fullStr | Shear and Flexural Strengthening of Steel Beams with Thick Carbon Fiber Reinforced Polymer Laminate |
| title_full_unstemmed | Shear and Flexural Strengthening of Steel Beams with Thick Carbon Fiber Reinforced Polymer Laminate |
| title_short | Shear and Flexural Strengthening of Steel Beams with Thick Carbon Fiber Reinforced Polymer Laminate |
| title_sort | shear and flexural strengthening of steel beams with thick carbon fiber reinforced polymer laminate |
| topic | flexural behavior shear behavior lateral torsional buckling 3-point bending test cfrp laminate |
| url | https://civiljournal.semnan.ac.ir/article_5196_b4ac9671c5e1b591b26c103eca17b0cb.pdf |
| work_keys_str_mv | AT mohammadshekarchi shearandflexuralstrengtheningofsteelbeamswiththickcarbonfiberreinforcedpolymerlaminate AT alirezakhaloo shearandflexuralstrengtheningofsteelbeamswiththickcarbonfiberreinforcedpolymerlaminate |