Flexural capacity calculation of RC beams strengthened with prestressed CFRP sheets
This paper investigates flexural behavior and analytical approach for predicting the load and deflection at critical performance points of reinforced concrete (RC) beams strengthened with prestressed carbon fiber-reinforced polymer (CFRP) sheets. A finite element model is developed to simulate the i...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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The University of Danang
2024-11-01
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| Series: | Tạp chí Khoa học và Công nghệ |
| Subjects: | |
| Online Access: | https://jst-ud.vn/jst-ud/article/view/9539 |
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| _version_ | 1849315129555943424 |
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| author | Nguyen Dang Dai Nam Ho Manh Hung Doan Cong Chanh Phan Hoang Nam Nguyen Minh Hai Gianluca Quinci |
| author_facet | Nguyen Dang Dai Nam Ho Manh Hung Doan Cong Chanh Phan Hoang Nam Nguyen Minh Hai Gianluca Quinci |
| author_sort | Nguyen Dang Dai Nam |
| collection | DOAJ |
| description | This paper investigates flexural behavior and analytical approach for predicting the load and deflection at critical performance points of reinforced concrete (RC) beams strengthened with prestressed carbon fiber-reinforced polymer (CFRP) sheets. A finite element model is developed to simulate the interaction between the RC beam and the CFRP sheets, capturing key aspects such as failure modes, ultimate load, and mechanical behavior across the three phases of failure. The analysis reveals that increasing the prestress level significantly enhances the performance, delaying the initiation of cracking, steel yielding, and increasing the ultimate load capacity. Two distinct failure modes are identified, i.e., concrete crushing in the compressive zone and composite plate peeling. An analytical approach is then proposed to estimate the load corresponding to initial cracking, steel yielding, and ultimate failure. Comparison between the experimental, numerical and analytical results shows that the proposed method accurately predicts the flexural capacity of RC beams strengthened with prestressed CFRP sheets. |
| format | Article |
| id | doaj-art-3d5caeb95cdb45f58cb3ebbac354cd4a |
| institution | Kabale University |
| issn | 1859-1531 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | The University of Danang |
| record_format | Article |
| series | Tạp chí Khoa học và Công nghệ |
| spelling | doaj-art-3d5caeb95cdb45f58cb3ebbac354cd4a2025-08-20T03:52:14ZengThe University of DanangTạp chí Khoa học và Công nghệ1859-15312024-11-01636910.31130/ud-jst.2024.522E9533Flexural capacity calculation of RC beams strengthened with prestressed CFRP sheetsNguyen Dang Dai Nam0Ho Manh Hung1Doan Cong Chanh2Phan Hoang Nam3Nguyen Minh Hai4Gianluca Quinci5The University of Danang - University of Science and Technology, Danang, VietnamThe University of Danang - University of Science and Technology, Danang, VietnamThe University of Danang - University of Science and Technology, Danang, Vietnam; School of Engineering, Tra Vinh University, Tra Vinh, VietnamThe University of Danang - University of Science and Technology, Danang, VietnamThe University of Danang - University of Science and Technology, Danang, VietnamRoma Tre University, Rome, ItalyThis paper investigates flexural behavior and analytical approach for predicting the load and deflection at critical performance points of reinforced concrete (RC) beams strengthened with prestressed carbon fiber-reinforced polymer (CFRP) sheets. A finite element model is developed to simulate the interaction between the RC beam and the CFRP sheets, capturing key aspects such as failure modes, ultimate load, and mechanical behavior across the three phases of failure. The analysis reveals that increasing the prestress level significantly enhances the performance, delaying the initiation of cracking, steel yielding, and increasing the ultimate load capacity. Two distinct failure modes are identified, i.e., concrete crushing in the compressive zone and composite plate peeling. An analytical approach is then proposed to estimate the load corresponding to initial cracking, steel yielding, and ultimate failure. Comparison between the experimental, numerical and analytical results shows that the proposed method accurately predicts the flexural capacity of RC beams strengthened with prestressed CFRP sheets.https://jst-ud.vn/jst-ud/article/view/9539prestressedcfrp sheetsfemanalytical approachflexural performance |
| spellingShingle | Nguyen Dang Dai Nam Ho Manh Hung Doan Cong Chanh Phan Hoang Nam Nguyen Minh Hai Gianluca Quinci Flexural capacity calculation of RC beams strengthened with prestressed CFRP sheets Tạp chí Khoa học và Công nghệ prestressed cfrp sheets fem analytical approach flexural performance |
| title | Flexural capacity calculation of RC beams strengthened with prestressed CFRP sheets |
| title_full | Flexural capacity calculation of RC beams strengthened with prestressed CFRP sheets |
| title_fullStr | Flexural capacity calculation of RC beams strengthened with prestressed CFRP sheets |
| title_full_unstemmed | Flexural capacity calculation of RC beams strengthened with prestressed CFRP sheets |
| title_short | Flexural capacity calculation of RC beams strengthened with prestressed CFRP sheets |
| title_sort | flexural capacity calculation of rc beams strengthened with prestressed cfrp sheets |
| topic | prestressed cfrp sheets fem analytical approach flexural performance |
| url | https://jst-ud.vn/jst-ud/article/view/9539 |
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