پیوندهای مفید
آمار
| تعداد نشریات | 22 |
| تعداد شمارهها | 712 |
| تعداد مقالات | 10,253 |
| تعداد مشاهده مقاله | 71,971,822 |
| تعداد دریافت فایل اصل مقاله | 63,721,998 |
An Innovative FRP Pre-Stressing Device for Retrofitting Reinforced Concrete Beams | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 4، دوره 14، شماره 1 - شماره پیاپی 41، اردیبهشت 2026 اصل مقاله (1.32 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2025.36001.2213 | ||
| نویسندگان | ||
| Kian Aghani* 1؛ Hassan Afshin2؛ Karim Abedi3 | ||
| 1Ph.D. in Structural Engineering, Civil Engineering Faculty, Sahand University of Technology, Sahand, Iran | ||
| 2Associate Professor, Civil Engineering Faculty, Sahand University of Technology, Sahand, Iran | ||
| 3Professor, Civil Engineering Faculty, Sahand University of Technology, Sahand, Iran | ||
| تاریخ دریافت: 03 آذر 1403، تاریخ بازنگری: 26 آذر 1403، تاریخ پذیرش: 25 دی 1403 | ||
| چکیده | ||
| Fiber Reinforced Polymer (FRP) composites are commonly utilized for retrofitting concrete members. While this retrofitting approach offers numerous advantages, some challenges remain. Pre-stressing the FRP is a promising strategy to optimize the proficiency of this method by enhancing the effectiveness of the composite and delaying debonding failures. However, conventional pre-stressing methods require specialized equipment and anchorage solutions. This research introduces a device explicitly designed for pre-stressing FRP composites used in retrofitting of concrete beams and slabs. Eliminating the demand for hydraulic jacks, straightforward operation, and being lightweight are among the critical advantages of the device. Furthermore, the device’s dimensions and weight are adjustable to take into account various composite sizes, and desired pre-stress levels, ensuring economic and practical feasibility. This study details the design and construction of the device, followed by an evaluation of its performance in pre-stressing carbon fiber reinforced polymers (CFRP) for retrofitting reinforced concrete T-beams via experimental tests. The results showed the potential of the proposed device for utilization in retrofitting applications. Also, a finite element model of the device and the associated analysis methodology are presented. | ||
تازه های تحقیق | ||
| ||
| کلیدواژهها | ||
| Concrete beams؛ Retrofitting؛ FRP؛ Pre-stressing؛ Device | ||
| مراجع | ||
|
[1] Shahawy MA, Arockiasamy M, Beitelmant T, Sowrirajan R. Reinforced concrete rectangular beams strengthened with CFRP laminates. Compos Part B Eng 1995;8368:225–33.
[2] Kachlakev D, McCurry DD. Behavior of full-scale reinforced concrete beams retrofitted for shear and flexural with FRP laminates. Compos Part B Eng 2000;31:445–52. https://doi.org/10.1016/S1359-8368(00)00023-8.
[3] Obaidat YT, Heyden S, Dahlblom O, Abu-Farsakh G, Abdel-Jawad Y. Retrofitting of reinforced concrete beams using composite laminates. Constr Build Mater 2011;25:591–7. https://doi.org/10.1016/j.conbuildmat.2010.06.082.
[4] Mostofinejad D, Shameli SM. Externally bonded reinforcement in grooves (EBRIG) technique to postpone debonding of FRP sheets in strengthened concrete beams. Constr Build Mater 2013;38:751–8. https://doi.org/10.1016/j.conbuildmat.2012.09.030.
[5] Qin D, Gao PK, Aslam F, Sufian M, Alabduljabbar H. A comprehensive review on fire damage assessment of reinforced concrete structures. Case Stud Constr Mater 2022;16:e00843. https://doi.org/10.1016/j.cscm.2021.e00843.
[6] Elbana A, Junaid MT. Determination of flexural capacity for GFRP-reinforced concrete beams retrofitted using external CFRP sheet. Structures 2020;27:1384–95. https://doi.org/10.1016/j.istruc.2020.07.003.
[7] Obaidat YT, Heyden S, Dahlblom O. The effect of CFRP and CFRP/concrete interface models when modelling retrofitted RC beams with FEM. Compos Struct 2010;92:1391–8. https://doi.org/10.1016/j.compstruct.2009.11.008.
[8] Manibalan P, Kesavan S, Abirami G, Baskar R. Fatigue response of RC beam strengthened by BFRP laminate. Case Stud Constr Mater 2023;18:e01707. https://doi.org/10.1016/j.cscm.2022.e01707.
[9] Aghani K, Afshin H, Abedi K. Finite element-based prediction of the long-term deflection of reinforced concrete beams strengthened with prestressed fiber-reinforced polymers. Structures 2022;43:358–73. https://doi.org/10.1016/j.istruc.2022.06.059.
[10] Moazzenchi S, Vatani Oskouei A. A Comparative Experimental Study on the Flexural Behavior of Geopolymer Concrete Beams Reinforced with FRP Bars. J Rehabil Civ Eng 2023;11:21–42. https://doi.org/10.22075/jrce.2022.25157.1569.
[11] Ahmadi J, Feirahi MH, Farahmand-Tabar S, Keshvari Fard AH. A novel approach for non-destructive EMI-based corrosion monitoring of concrete-embedded reinforcements using multi-orientation piezoelectric sensors. Constr Build Mater 2021;273:121689. https://doi.org/10.1016/J.CONBUILDMAT.2020.121689.
[12] ACI committee 224. Control of Cracking in Concrete Structures, ACI Manual of Concrete Practice. 2008.
[13] Yang D-S, Park S-K, Neale KW. Flexural behaviour of reinforced concrete beams strengthened with prestressed carbon composites. Compos Struct 2009;88:497–508. https://doi.org/10.1016/j.compstruct.2008.05.016.
[14] Aslam M, Shafigh P, Jumaat MZ, Shah SNR. Strengthening of RC beams using prestressed fiber reinforced polymers - A review. Constr Build Mater 2015;82:235–56. https://doi.org/10.1016/j.conbuildmat.2015.02.051.
[15] Gao P, Gu X, Mosallam AS. Flexural behavior of preloaded reinforced concrete beams strengthened by prestressed CFRP laminates. Compos Struct 2016;157:33–50. https://doi.org/10.1016/j.compstruct.2016.08.013.
[16] Havez AA, Al-Mayah A. Flexural Strengthening of Concrete Structures Using Externally Bonded and Unbonded Prestressed CFRP Laminates—A Literature Review. J Compos Constr 2023;27. https://doi.org/10.1061/JCCOF2.CCENG-4053.
[17] ACI 440.2R-17: Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures. 2017. https://doi.org/10.14359/51700867.
[18] Qin D, Gao P, Aslam F, Sufian M, Alabduljabbar H. A comprehensive review on fire damage assessment of reinforced concrete structures. Case Stud Constr Mater 2022;16:e00843. https://doi.org/10.1016/j.cscm.2021.e00843.
[19] Saadatmanesh H, Ehsani MR. RC beams strengthened with GFRP plates. I: eperimental study. J Struct Eng 1991;117:3417–33.
[20] Triantafillou TC, Deskovic N, Deuring M. Strengthening of concrete structures with prestressed fiber reinforced plastic sheets. ACI Struct J 1992;89:235–44. https://doi.org/10.14359/2940.
[21] Garcez MR, Meneghetti LC, da Silva Filho LCP. Applying Post-Tensioning Technique to Improve the Performance of FRP Post-Strengthening. Fiber Reinf. Polym. - Technol. Appl. Concr. Repair, 2013. https://doi.org/10.5772/51523.
[22] Xie JH, Huang PY, Guo YC. Fatigue behavior of reinforced concrete beams strengthened with prestressed fiber reinforced polymer. Constr Build Mater 2012;27:149–57. https://doi.org/10.1016/j.conbuildmat.2011.08.002.
[23] Mukherjee A, Rai GL. Performance of reinforced concrete beams externally prestressed with fiber composites. Constr Build Mater 2009;23:822–8. https://doi.org/10.1016/j.conbuildmat.2008.03.008.
[24] Kotynia R, Walendziak R, Stoecklin I, Meier U. RC Slabs Strengthened with Prestressed and Gradually Anchored CFRP Strips under Monotonic and Cyclic Loading. J Compos Constr 2010;15:168–80. https://doi.org/10.1061/(asce)cc.1943-5614.0000081.
[25] Yang J, Haghani R, Al-Emrani M. Innovative prestressing method for externally bonded CFRP laminates without mechanical anchorage. Eng Struct 2019;197:109416. https://doi.org/10.1016/j.engstruct.2019.109416.
[26] Xue W, Tan Y, Zeng L. Flexural response predictions of reinforced concrete beams strengthened with prestressed CFRP plates. Compos Struct 2010;92:612–22. https://doi.org/10.1016/j.compstruct.2009.09.036.
[27] You YC, Choi KS, Kim J. An experimental investigation on flexural behavior of RC beams strengthened with prestressed CFRP strips using a durable anchorage system. Compos Part B Eng 2012;43:3026–36. https://doi.org/10.1016/j.compositesb.2012.05.030.
[28] Pellegrino C, Modena C. Flexural strengthening of real-scale RC and PRC beams with end-anchored pretensioned FRP laminates. ACI Struct J 2009;106:319–28. https://doi.org/10.14359/56496.
[29] Wang J, Jia Y, Zhang G, Han J, Liu J. Experimental study on prestressed concrete hollow slabs in service strengthened with prestressed CFRP plates. Int J Struct Integr 2018;9:587–602. https://doi.org/10.1108/IJSI-08-2017-0049.
[30] Piątek B, Siwowski T. Development of the new CFRP strip prestressing system for structural strengthening. 9th Int. Conf. Fibre-Reinforced Polym. Compos. Civ. Eng. CICE 2018, vol. 2018- July, 2018, p. 710–7.
[31] Abdulhameed SS, Wu E, Ji B. Mechanical Prestressing System for Strengthening Reinforced Concrete Members with Prestressed Carbon-Fiber-Reinforced Polymer Sheets. J Perform Constr Facil 2015;29:1–9. https://doi.org/10.1061/(asce)cf.1943-5509.0000478.
[32] Yu P, Silva PF, Nanni A. Description of a mechanical device for prestressing of carbon fiber-reinforced polymer sheets - Part I. ACI Struct J 2008;105:3–10. https://doi.org/10.14359/19063.
[33] Woo SK, Nam JW, Kim JHJ, Han SH, Byun KJ. Suggestion of flexural capacity evaluation and prediction of prestressed CFRP strengthened design. Eng Struct 2008;30:3751–63. https://doi.org/10.1016/j.engstruct.2008.06.013.
[34] ASTM D3039/D3039M. Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials. 2014. https://doi.org/10.1520/D3039. | ||
|
آمار تعداد مشاهده مقاله: 746 تعداد دریافت فایل اصل مقاله: 425 |
||