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Youssef, M., Ahmed, A., Ahmed, M., Farghal, O. (2020). A NUMERICAL STUDY ON SEISMIC PERFORMANCE EVALUATION OF RC RECTANGULAR COLUMNS STRENGTHENED WITH CFRP SHEETS. JES. Journal of Engineering Sciences, 48(No 5), 805-829. doi: 10.21608/jesaun.2020.39384.1003
Mena Gamel Youssef; Abdel-Rahman Megahed Ahmed; Mohamed Mahmoud Ahmed; Omar Ahmed Farghal. "A NUMERICAL STUDY ON SEISMIC PERFORMANCE EVALUATION OF RC RECTANGULAR COLUMNS STRENGTHENED WITH CFRP SHEETS". JES. Journal of Engineering Sciences, 48, No 5, 2020, 805-829. doi: 10.21608/jesaun.2020.39384.1003
Youssef, M., Ahmed, A., Ahmed, M., Farghal, O. (2020). 'A NUMERICAL STUDY ON SEISMIC PERFORMANCE EVALUATION OF RC RECTANGULAR COLUMNS STRENGTHENED WITH CFRP SHEETS', JES. Journal of Engineering Sciences, 48(No 5), pp. 805-829. doi: 10.21608/jesaun.2020.39384.1003
Youssef, M., Ahmed, A., Ahmed, M., Farghal, O. A NUMERICAL STUDY ON SEISMIC PERFORMANCE EVALUATION OF RC RECTANGULAR COLUMNS STRENGTHENED WITH CFRP SHEETS. JES. Journal of Engineering Sciences, 2020; 48(No 5): 805-829. doi: 10.21608/jesaun.2020.39384.1003

A NUMERICAL STUDY ON SEISMIC PERFORMANCE EVALUATION OF RC RECTANGULAR COLUMNS STRENGTHENED WITH CFRP SHEETS

Article 4, Volume 48, No 5, September and October 2020, Page 805-829  XML PDF (1.18 MB)
Document Type: Research Paper
DOI: 10.21608/jesaun.2020.39384.1003
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Authors
Mena Gamel Youssef email 1; Abdel-Rahman Megahed Ahmed2; Mohamed Mahmoud Ahmed2; Omar Ahmed Farghal2
1Galaa Street
2Civil Engineering Department, Faculty of Engineering, Assiut University, Assiut, Egypt
Abstract
External confinement of reinforced concrete columns using fiber-reinforced polymer (FRP) sheets can significantly enhance their seismic behavior. This research presents a numerical investigation to evaluate the seismic performance of RC rectangular columns with limited cross-sections' aspect ratios (1, 1.5, and 2) strengthened with a fully wrapped CFRP jacket under constant axial and pushover lateral loads. Therefore, a three-dimensional finite element model was implemented via ABAQUS software, which has been adopted in this study, where the proposed model showed a reliable agreement with the previous experimental work. The studied parameters are: longitudinal steel reinforcement ratio, CFRP confinement ratio, and axial load/capacity ratio for each cross-section aspect ratio. The obtained numerical results have proved that the external wrapping of RC rectangular columns with CFRP sheets has effectively increased drift capacity ratios for cross-sections aspect ratios 1, 1.5, and 2. Moreover, the strengthening of RC rectangular columns using external CFRP wrapping increases the nominal shear and flexural strengths of the strengthened columns. Also, the effect of increasing the longitudinal steel reinforcement ratio can significantly decrease the ultimate lateral displacement and drift capacity ratios. Besides, with the increase of the axial load/capacity ratios, the drift capacity ratios significantly decrease for the strengthened RC rectangular columns.
Keywords
Strengthened RC Columns; CFRP; Seismic Behavior; Ductility; flexural strength
Main Subjects
Civil Engineering: structural, Geotechnical, reinforced concrete and steel structures, Surveying, Road and traffic engineering, water resources, Irrigation structures, Environmental and sanitary engineering, Hydraulic, Railway, construction Management.
References
[1]      Kocak, A., The effect of short columns on the performance of existing buildings. Structural Engineering and Mechanics, 2013. 46(4): pp. 505-518.

[2]      Guevara, L.T. and L.E. Garcı´a, The Captive- and Short-Column Effects. Earthquake Spectra, 2005. 21(1): pp. 141-160.

[3]      Biskinis, D.E., G.K. Roupakias, and M.N. Fardis, Degradation of shear strength of reinforced concrete members with inelastic cyclic displacements. Structural Journal, 2004. 101(6): pp. 773-783.

[4]      Vandoros, K.G. and S.E. Dritsos, Concrete jacket construction detail effectiveness when strengthening RC columns. Construction and Building Materials, 2008. 22(3): pp. 264-276.

[5]      Ma, C.-K., et al., Repair and rehabilitation of concrete structures using confinement: A review. Construction and Building Materials, 2017. 133: pp. 502-515.

[6]      Islam, N., and M. Hoque, Strengthening of Reinforced Concrete Columns by Steel Jacketing: A State of Review. Asian Transactions on Engineering (ATE ISSN: 2221-4267) Volume, 2015. 5.

[7]      Belal, M.F., H.M. Mohamed, and S.A. Morad, Behavior of reinforced concrete columns strengthened by steel jacket. HBRC Journal, 2015. 11(2): pp. 201-212.

[8]      Nanni, A. and J. Giancaspro, FRP composites for reinforced and prestressed concrete structures: a guide to fundamentals and design for repair and retrofit. 2009: Taylor & Francis.

[9]      Harajli, M. and F. Dagher, Seismic strengthening of bond-critical regions in rectangular reinforced concrete columns using fiber-reinforced polymer wraps. Aci Structural Journal, 2008. 105: pp. 68-77.

[10]   Gora, A.u.M., et al., Finite element analysis of rectangular reinforced concrete columns wrapped with FRP composites. IOP Conference Series: Materials Science and Engineering, 2018. 431: pp. 072005.

[11]   Wu, Y.-F. and Y.-Y. Wei, Effect of cross-sectional aspect ratio on the strength of CFRP-confined rectangular concrete columns. Engineering Structures, 2010. 32(1): pp. 32-45.

[12]   Farrokh Ghatte, H., et al., Seismic Retrofit of Full-Scale Substandard Extended Rectangular RC Columns through CFRP Jacketing: Test Results and Design Recommendations. Journal of Composites for Construction, 2018. 23(1): pp. 04018071.

[13]   Del Zoppo, M., et al., FRP for seismic strengthening of shear-controlled RC columns: Experience from earthquakes and experimental analysis. Composites Part B: Engineering, 2017. 129: pp. 47-57.

[14]   Oucif, C., et al., Numerical modeling of reinforced concrete strengthened columns under cyclic loading. Arabian Journal for Science and Engineering, 2017. 42(9): pp. 3933-3944.

[15]   Juntanalikit, P., T. Jirawattanasomkul, and A. Pimanmas, Experimental and numerical study of strengthening non-ductile RC columns with and without lap splice by Carbon Fiber Reinforced Polymer (CFRP) jacketing. Engineering Structures, 2016. 125: pp. 400-418.

[16]   Realfonzo, R. and A. Napoli, Results from cyclic tests on high aspect ratio RC columns strengthened with FRP systems. Construction and Building Materials, 2012. 37: pp. 606-620.

[17]   Ozcan, O., B. Binici, and G. Ozcebe, Seismic strengthening of rectangular reinforced concrete columns using fiber reinforced polymers. Engineering Structures, 2010. 32(4): pp. 964-973.

[18]   ElGawady, M., et al., Retrofitting of rectangular columns with deficient lap splices. Journal of Composites for Construction, 2009. 14(1): pp. 22-35.

[19]   Galal, K., A. Arafa, and A. Ghobarah, Retrofit of RC square short columns. Engineering Structures, 2005. 27(5): pp. 801-813.

[20]   Ouyang, L.-J., et al., Seismic retrofit of square reinforced concrete columns using basalt and carbon fiber-reinforced polymer sheets: A comparative study. Composite Structures, 2017. 162: pp. 294-307.

[21]   ABAQUS, Analysis User's Manual, in Dassault SystÈmes Simulia Corp., Providence, RI, V. 6.12-1, Editor. 2012.

[22]   Papanikolaou, V.K. and A.J. Kappos, Confinement-sensitive plasticity constitutive model for concrete in triaxial compression. International Journal of Solids and Structures, 2007. 44(21): pp. 7021-7048.

[23]   Hany, N.F., E.G. Hantouche, and M.H. Harajli, Finite element modeling of FRP-confined concrete using modified concrete damaged plasticity. Engineering Structures, 2016. 125: pp. 1-14.

[24]   Tao, Z., Z.-B. Wang, and Q. Yu, Finite element modelling of concrete-filled steel stub columns under axial compression. Journal of Constructional Steel Research, 2013. 89: pp. 121-131.

[25]   Yuan, F., Y.-F. Wu, and C.-Q. Li, Modelling plastic hinge of FRP-confined RC columns. Engineering Structures, 2017. 131: pp. 651-668.

[26]   Ozbakkaloglu, T., A. Gholampour, and J.C. Lim, Damage-Plasticity Model for FRP-Confined Normal-Strength and High-Strength Concrete. Journal of Composites for Construction, 2016. 20(6): pp. 04016053.

[27]   Saenz, L.P., discussion of" Equation for the Stress-Strain Curve of Concrete" by Desayi and Krishnan. Journal of the American Concrete Institute, 1964. 61: pp. 1229-1235.

[28]   Ferrotto, M., O. Fischer, and L. Cavaleri, A strategy for the finite element modeling of FRP-confined concrete columns subjected to preload. Engineering Structures, 2018. 173: pp. 1054-1067.

[29]   Popovics, S., A numerical approach to the complete stress-strain curve of concrete. Cement and Concrete Research, 1973. 3(5): pp. 583-599.

[30]   Wahalathantri, B.L., et al. A material model for flexural crack simulation in reinforced concrete elements using ABAQUS. in Proceedings of the first international conference on engineering, designing, and developing the built environment for sustainable wellbeing. 2011. Queensland University of Technology.

[31]   Taghia, P. and S.A. Bakar, Mechanical behaviour of confined reinforced concrete-CFRP short column-based on finite element analysis. World Applied Sciences Journal, 2013. 24(7): pp. 960-970.

[32]   [32]          Hajsadeghi, M., F.J. Alaee, and A. Shahmohammadi, Investigation on Behaviour of Square/Rectangular Reinforced Concrete Columns Retrofitted with FRP Jacket. Journal of Civil Engineering and Management, 2011. 17(3): pp. 400-408.

[33]   Institute, A.C., Building code requirements for structural concrete (ACI 318-11) and commentary. ACI 318R-11, Farmington Hills, MI, 2011.

[34]   Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures: ACI 440.2 R-02. 2002. American Concrete Institute.

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