Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure
This research presents a numerical study of the behavior of reinforced columns with a square cross section subjected to eccentric stress under the influence of fire. As a first step, the study examined the effects of exposing columns to fire with an increasing temperature up to 600°C for 60 minutes...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Viçosa (UFV)
2023-10-01
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| Series: | The Journal of Engineering and Exact Sciences |
| Subjects: | |
| Online Access: | https://periodicos.ufv.br/jcec/article/view/16880 |
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| author | Mohammed Salah Dimia Ahmed Rafik Belakhdar Rachid Rabehi Mohamed Baghdadi Antonio Marcos de Oliveira Siqueira Julio Cesar Costa Campos |
| author_facet | Mohammed Salah Dimia Ahmed Rafik Belakhdar Rachid Rabehi Mohamed Baghdadi Antonio Marcos de Oliveira Siqueira Julio Cesar Costa Campos |
| author_sort | Mohammed Salah Dimia |
| collection | DOAJ |
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This research presents a numerical study of the behavior of reinforced columns with a square cross section subjected to eccentric stress under the influence of fire. As a first step, the study examined the effects of exposing columns to fire with an increasing temperature up to 600°C for 60 minutes under eccentric loading conditions (e/b = 0, 0.1, 0.15, 0.20). As a second step, the columns were strengthened with a 100-mm concrete jacket and shirts supported by a steel structure consisting of vertical angles and horizontal spreaders to determine the effectiveness of the strengthening in increasing the resistance of these damaged columns. After the fire, this type of reinforcement is considered better than reinforcement with concrete shirts, reinforcement with carbon fiber-reinforced polymers, and others because of its advantages. There are many advantages to the ease and speed of implementation. The results showed that the columns that were repaired and strengthened after the fire with the steel structure casing led to a significant increase in resistance. It was found that the greater the thickness of the steel structure, the greater the resistance, and that the greater the eccentricity ratio, the lower the resistance as well as the collapse load.
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| format | Article |
| id | doaj-art-46be76626e104ff481c5c59d40234d62 |
| institution | Kabale University |
| issn | 2527-1075 |
| language | English |
| publishDate | 2023-10-01 |
| publisher | Universidade Federal de Viçosa (UFV) |
| record_format | Article |
| series | The Journal of Engineering and Exact Sciences |
| spelling | doaj-art-46be76626e104ff481c5c59d40234d622025-02-02T19:54:37ZengUniversidade Federal de Viçosa (UFV)The Journal of Engineering and Exact Sciences2527-10752023-10-0191110.18540/jcecvl9iss11pp16880-01eEffectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposureMohammed Salah Dimia0Ahmed Rafik Belakhdar1Rachid Rabehi2Mohamed Baghdadi3Antonio Marcos de Oliveira Siqueira4Julio Cesar Costa Campos5 LGC-ROI, Department of Civil Engineering Faculty of Technology University of Batna 2, Batna, AlgeriaMining Laboratory, Civil Engineering Department, Larbi Tebessi University, Tebessa 12002, Algeria Laboratory of Development in Mechanics and Materials (LDMM) ‐ University of Djelfa, AlgeriaLGC-ROI, Department of Civil Engineering Faculty of Technology University of Batna 2, Batna, AlgeriaUniversidade Federal de Viçosa, BrazilUniversidade Federal de Viçosa, Brazil This research presents a numerical study of the behavior of reinforced columns with a square cross section subjected to eccentric stress under the influence of fire. As a first step, the study examined the effects of exposing columns to fire with an increasing temperature up to 600°C for 60 minutes under eccentric loading conditions (e/b = 0, 0.1, 0.15, 0.20). As a second step, the columns were strengthened with a 100-mm concrete jacket and shirts supported by a steel structure consisting of vertical angles and horizontal spreaders to determine the effectiveness of the strengthening in increasing the resistance of these damaged columns. After the fire, this type of reinforcement is considered better than reinforcement with concrete shirts, reinforcement with carbon fiber-reinforced polymers, and others because of its advantages. There are many advantages to the ease and speed of implementation. The results showed that the columns that were repaired and strengthened after the fire with the steel structure casing led to a significant increase in resistance. It was found that the greater the thickness of the steel structure, the greater the resistance, and that the greater the eccentricity ratio, the lower the resistance as well as the collapse load. https://periodicos.ufv.br/jcec/article/view/16880Reinforced concrete columnFireEccentricity loadNumerical investigationJacket |
| spellingShingle | Mohammed Salah Dimia Ahmed Rafik Belakhdar Rachid Rabehi Mohamed Baghdadi Antonio Marcos de Oliveira Siqueira Julio Cesar Costa Campos Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure The Journal of Engineering and Exact Sciences Reinforced concrete column Fire Eccentricity load Numerical investigation Jacket |
| title | Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
| title_full | Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
| title_fullStr | Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
| title_full_unstemmed | Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
| title_short | Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
| title_sort | effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
| topic | Reinforced concrete column Fire Eccentricity load Numerical investigation Jacket |
| url | https://periodicos.ufv.br/jcec/article/view/16880 |
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