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Numerical Investigation of FRP-Confined Reinforced Concrete Columns Strengthened with Rods under Cyclic and Monotonic Compression | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 31، دوره 13، شماره 4 - شماره پیاپی 40، بهمن 2025، صفحه 131-160 اصل مقاله (1.2 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2025.33869.2050 | ||
| نویسندگان | ||
| Boumedjane Aissa* 1، 2، 3؛ Mohamed Saadi3، 4؛ Djarir Yahiaoui3، 4؛ Noureddine Lahbari3، 4 | ||
| 1Ph.D. Candidate, Department of Civil Engineering, Faculty of Technology, University of Batna 2, Batna 5000, Algeria | ||
| 2Laboratory of Research in Applied Hydraulics, LRHYA, Department of Civil Engineering, Faculty of Technology, University of Batna 2, Algeria | ||
| 3LGC-ROI, Civil Engineering Laboratory-Risks and Structures in Interactions, Department of Civil Engineering, Faculty of Technology, University of Batna 2, Batna 5000, Algeria | ||
| 4Professor, Department of Civil Engineering, Faculty of Technology, University of Batna 2, Batna, Algeria | ||
| تاریخ دریافت: 01 خرداد 1403، تاریخ بازنگری: 27 آبان 1403، تاریخ پذیرش: 26 دی 1403 | ||
| چکیده | ||
| In this study, a numerical investigation was conducted on the seismic behavior of low-strength reinforced concrete columns, strengthened with steel bars and wrapped with fiberglass tapes and fabrics, using finite element software. The columns were subjected to both monotonic and cyclic loading, and the analysis focused on fracture patterns, failure mechanisms, lateral hysteresis loops, ductility degradation, and stiffness degradation. The results showed that the reference column exhibited brittle shear failure and insufficient ductility. In contrast, the second column, reinforced with steel bars and partially wrapped with fiberglass tapes, demonstrated 30% higher tensile strength compared to the reference column, achieving stable hysteresis loops, improved energy dissipation, and 25% less cracking. The third column, fully wrapped with fiberglass fabric in addition to the steel bars, exhibited 50% higher tensile strength and 75% reduced probability of cracking in the plastic hinge area. These findings underscore the effectiveness of advanced reinforcement techniques in improving the seismic performance of reinforced concrete columns. | ||
تازه های تحقیق | ||
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| کلیدواژهها | ||
| FRP؛ Steel bars؛ Column؛ Confined concrete؛ Strengthening؛ Fiberglass bands؛ Tissues؛ Cyclic load؛ Monotonic loading؛ Analysis | ||
| مراجع | ||
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