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Shear and Flexural Strengthening of Steel Beams with Thick Carbon Fiber Reinforced Polymer Laminate | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 16، دوره 9، شماره 4 - شماره پیاپی 24، بهمن 2021، صفحه 148-170 اصل مقاله (1.36 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2021.22339.1473 | ||
| نویسندگان | ||
| Mohammad Shekarchi؛ Alireza Khaloo* | ||
| Department of Civil Engineering, Sharif University of Technology, Tehran, Iran | ||
| تاریخ دریافت: 20 دی 1399، تاریخ بازنگری: 27 اردیبهشت 1400، تاریخ پذیرش: 05 تیر 1400 | ||
| چکیده | ||
| 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. | ||
تازه های تحقیق | ||
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| کلیدواژه‌ها | ||
| Flexural behavior؛ Shear behavior؛ Lateral torsional buckling؛ 3-Point bending test؛ CFRP laminate | ||
| مراجع | ||
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[1] Shirmardi MM, Mohammadizadeh MR. Numerical Study on the Flexural Behaviour of Concrete Beams Reinforced by GFRP Bars. Journal of Rehabilitation in Civil Engineering. 2019, 7(4):88-99. DOI: 10.22075/jrce.2018.14701.1268.
[2] Shekarchi M, Farahani EM, Yekrangnia M, Ozbakkaloglu T. Mechanical strength of CFRP and GFRP composites filled with APP fire retardant powder exposed to elevated temperature. Fire Safety Journal. 2020, 115:103178. DOI: 10.1016/j.firesaf.2020.103178.
[3] Doostmohamadi A, Vatani Oskouei A, Kheyroddin A. An Experimental Study on Effect of Concrete Type on Bond Strength of GFRP Bars. Journal of Rehabilitation in Civil Engineering. 2020, 52-70. DOI: 10.22075/jrce.2020.19922.1392.
[4] Moradi H, Khaloo AR, Shekarchi M, Kazemian A. Effect of utilizing glass fiber-reinforced polymer on flexural strengthening of RC arches. Scientia Iranica, 2019, 26(4): 2299-2309. DOI: 10.24200/SCI.2019.21512.
[5] Kargaran A, Kheyroddin A. Experimental and numerical investigation of seismic retrofitting of RC square short columns using FRP composites. European Journal of Environmental and Civil Engineering. 2020, 1-24. DOI: 10.1080/19648189.2020.1858171.
[6] Khaloo A, Moradi H, Kazemian A, Shekarchi M. Experimental investigation on the behavior of RC arches strengthened by GFRP composites. Construction and Building Materials. 2020, 235:117519. DOI: 10.1016/j.conbuildmat.2019.117519.
[7] Shekarchi M, Farahani EM, Oskouei AV. Effect of seawater on pull-out behavior of glued-in single rods set parallel to the grain of timber joints. Construction and Building Materials. 2019, 222: 342-57. DOI: 10.1016/j.conbuildmat.2019.06.140.
[8] Hamzenezhadi A, Sharbatdar M. Flexural Strengthening of Deficient Reinforced Concrete Beams with Post-Tensioned Carbon Composites Using Finite Element Modelling. Journal of Rehabilitation in Civil Engineering. 2020, 8(4): 28-46. DOI: 10.22075/jrce.2020.15707.1294.
[9] Aghabozorgi P, Khaloo A. Numerical investigation of the effects of compression GFRP reinforcement on the flexural strength and ductility of reinforced concrete beams. Journal of Concrete Structures and Materials. 2020, 5(1): 31-45.
[10] Shekarchi M, Oskouei AV, Raftery GM. Flexural behavior of timber beams strengthened with pultruded glass fiber reinforced polymer profiles. Composite Structures. 2020, 241: 112062. DOI: 10.1016/j.compstruct.2020.112062.
[11] Teng J G, Yu T, Fernando D. Strengthening of steel structures with fiber-reinforced polymer composites. Journal of Constructional Steel Research, 2012, 78: 131–143. DOI: 10.1016/j.jcsr.2012.06.011.
[12] Al-Mosawe A, Al-Mahaidi R, Zhao X L. Effect of CFRP properties, on the bond characteristics between steel and CFRP laminate under quasi-static loading. Construction and Building Materials, 2015, 98: 489–501. DOI: 10.1016/j.conbuildmat.2015.08.130.
[13] Madhavan M, Sanap V, Verma R, Selvaraj S. Flexural Strengthening of Structural Steel Angle Sections Using CFRP: Experimental Investigation. Journal of Composites for Construction, 2015, 20(1): 04015018. DOI: 10.1061/(ASCE)CC.1943-5614.0000578.
[14] Tavakkolizadeh M, Saadatmanesh H. Strengthening of steel-concrete composite girders using carbon fiber reinforced polymers sheets. Journal of Structural Engineering, 2003, 129(1): 30–40. DOI: 10.1061/(ASCE)0733-9445(2003)129:1(30).
[15] Al-saidy A H, Klaiber F W, Wipf T J. Repair of steel composite beams with carbon fiber-reinforced polymer plates. Journal of Composites for Construction, 2004, 8(2): 163–172. DOI: 10.1061/(ASCE)1090-0268(2004)8:2(163).
[16] Hmidan A, Kim Y J, Yazdani S. CFRP Repair of Steel Beams with Various Initial Crack Configurations. Journal of Composites for Construction, 2011, 15(6): 952–962. DOI: 10.1061/(ASCE)CC.1943-5614.0000223.
[17] Linghoff D, Al-Emrani M, Kliger R. Performance of steel beams strengthened with CFRP laminate - Part 1: Laboratory tests. Composites Part B: Engineering, 2010, 41(7): 509–515. DOI: 10.1016/j.compositesb.2009.05.008.
[18] Martinelli E, Hosseini A, Ghafoori E, Motavalli M. Behavior of prestressed CFRP plates bonded to steel substrate: Numerical modeling and experimental validation. Composite Structures. 2019, 207: 974-984. DOI: 10.1016/j.compstruct.2018.09.023.
[19] El Damatty A A, Abushagur M, Youssef M A. Experimental and analytical investigation of steel beams rehabilitated using GFRP sheets. Steel and Composite Structures, 2003, 3(6): 421–438. DOI: 10.12989/scs.2003.3.6.421.
[20] Lenwari A, Thepchatri T, Albrecht P. Flexural Response of Steel Beams Strengthened with Partial-Length CFRP Plates. Journal of Composites for Construction, 2005, 9(4): 296–303. DOI: 10.1061/(ASCE)1090-0268(2005)9:4(296).
[21] Rizkalla S, Dawood M, Schnerch D. Development of a carbon fiber reinforced polymer system for strengthening steel structures. Composites Part A: Applied Science and Manufacturing, 2008, 39(2): 388–397. DOI: 10.1016/j.compositesa.2007.10.009.
[22] Ghafoori E, Schumacher A, Motavalli M. Fatigue behavior of notched steel beams reinforced with bonded CFRP plates: Determination of prestressing level for crack arrest. Engineering Structures, 2012, 45: 270–283. DOI: 10.1016/j.engstruct.2012.06.047.
[23] Ghafoori E, Motavalli M. Innovative CFRP-prestressing system for strengthening metallic structures. Journal of Composites for Construction, 2015, 19(6): 04015006. DOI: 10.1061/(ASCE)CC.1943-5614.0000559.
[24] Ghafoori E, Motavalli M. Normal, high and ultra-high modulus carbon fiber-reinforced polymer laminates for bonded and un-bonded strengthening of steel beams. Materials & Design, 2015, 67: 232-243. DOI: 10.1016/j.matdes.2014.11.031.
[25] Hosseini A, Ghafoori E, Al-Mahaidi R, Zhao XL, Motavalli M. Strengthening of a 19th-century roadway metallic bridge using nonprestressed bonded and prestressed unbonded CFRP plates. Construction and Building Materials, 2019, 209: 240-259. DOI: 10.1016/j.conbuildmat.2019.03.095.
[26] Products technical information for QUANTOM® carbon plate. 2018: downloadable from http://quantom.com.tr/tr/urun/quantom-carbon-plate/
[27] ACI 440 3R-04. Guide test methods for fiber-reinforced polymers (FRPs) for reinforcing or strengthening concrete structures. American Concrete Institute, Farmington Hills, USA, 2004.
[28] Products technical information for QUANTOM® EPR 301. 2017: downloadable from http://quantom.com.tr/tr/urun/quantom-epr-301/
[29] ASTM E8 / E8M-21, Standard Test Methods for Tension Testing of Metallic Materials, ASTM International, West Conshohocken, PA, 2021. DOI: 10.1520/E0008_E0008M-21.
[30] AISC 360-10. Specification for Structural Steel Buildings. American Institute of Steel Construction, Illinois, USA, 2010.
[31] Malek A M, Saadatmanesh H, Ehsani M R. Prediction of failure load of R/C beams strengthened with FRP plate due to stress concentration at the plate end. ACI structural Journal, 1998, 95: 142–152.
[32] Moy S S J, Nikoukar F. Flexural behaviour of steel beams reinforced with carbon fibre reinforced polymer composite. In: Proceedings of Advanced Polymer Composites for Structural Applications in Construction (ACIC 2002). Southampton: 2002.
[33] Abaqus. User’s manual version 6.9. Pawtucket (RI, USA): Hibbitt, Karlsson and Sorensen lnc.; 2005.
[34] Zachariah A T. Finite Element Modelling of Adhesive Interface between Steel and CFRP. Master thesis. Chalmers University of Technology, 2006.
[35] Tahmasebi F. Finite Element Modeling of an adhesive in a bonded joint. NASA Goggard Space Flight Center, 1999.
[36] ASTM D638-10, Standard Test Method for Tensile Properties of Plastics, ASTM International, West Conshohocken, PA, 2010. DOI: 10.1520/D0638-10.
[37] ASTM D732-17, Standard Test Method for Shear Strength of Plastics by Punch Tool, ASTM International, West Conshohocken, PA, 2017. DOI: 10.1520/D0732-17.
[38] Nguyen T T, Chan T M, Mottram J T. Influence of boundary conditions and geometric imperfections on lateral–torsional buckling resistance of a pultruded FRP I-beam by FEA. Composite Structures, 2013, 100: 233-242. DOI: 10.1016/j.compstruct.2012.12.023.
[39] Dabiri H, Kheyroddin A, Kaviani A. A numerical study on the seismic response of RC wide column–beam joints. International Journal of Civil Engineering. 2019, 17(3):377-95. DOI: 10.1007/s40999-018-0364-2.
[40] Dabiri H, Kaviani A, Kheyroddin A. Influence of reinforcement on the performance of non-seismically detailed RC beam-column joints. Journal of Building Engineering. 2020, 31:101333. DOI: 10.1016/j.jobe.2020.101333.
[41] Li B, Lam ES, Wu B, Wang YY. Experimental investigation on reinforced concrete interior beam–column joints rehabilitated by ferrocement jackets. Engineering Structures. 2013, 56:897-909. DOI: 10.1016/j.engstruct.2013.05.038.
[42] Akhlaghi A, Mostofinejad D. Experimental and analytical assessment of different anchorage systems used for CFRP flexurally retrofitted exterior RC beam-column connections. Structures. 2020, 28:881-893. DOI: 10.1016/j.istruc.2020.09.037.
[43] Kheyroddin A, Dabiri H. Cyclic performance of RC beam-column joints with mechanical or forging (GPW) splices; an experimental study. Structures. 2020, 28:2562-2571. DOI: 10.1016/j.istruc.2020.10.071. | ||
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