Numerical Investigations on the Seismic Behavior of FRP and TRM Upgraded RC Exterior Beam-Column Joints
Publication: Journal of Composites for Construction
Volume 16, Issue 3
Abstract
In this paper, a detailed procedure for nonlinear finite-element analysis of fiber reinforced polymer (FRP) and textile reinforced mortar (TRM) upgraded reinforced concrete (RC) beam-column exterior joints is presented for predicting their seismic performance under simulated earthquake loading. The finite-element (FE) model was developed using a smeared cracking approach for concrete and three-dimensional layered elements for the FRP and TRM-composites. The results obtained from FE analysis were compared with the test results. The tests were conducted on four as-built exterior beam-column joint specimens under simulated seismic loads. Out of these four specimens, one specimen was tested as a control specimen and the other three were tested after strengthening with TRM, carbon FRP, and glass FRP sheets, respectively. The FE results were compared with the test results through load-displacement behavior, ultimate loads, and crack pattern. Comparison of FE results with the experimentally observed response indicated that the proposed nonlinear FE model can accurately predict the behavior and response of tested RC beam-column joints.
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Acknowledgments
The authors extend their appreciation to the Deanship of Scientific Research at King Saud University for funding the work through the research group project No. RGP-VPP-064. Thanks are also extended to the MMB Chair for Research and Studies in Strengthening and Rehabilitation of Structures and the Saudi Aramco Chair for Earthquake Engineering at the Department of Civil Engineering at King Saud University for providing technical support.
References
ABAQUS. (2005). Standard user’s manual (version 6.6). Habbitt, Karlsson and Sorenson, Inc., Pawtucket, RI.
Almusallam, T. H., and Al-Salloum, Y. A. (2007). “Seismic response of interior beam-column joints upgraded with FRP sheets. II: Analysis and parametric study.” J. Compos. Constr.JCCOF2, 11(6), 590–600.
Al-Salloum, Y. A., and Almusallam, T. H. (2007). “Seismic response of interior beam-column joints upgraded with FRP sheets. I: Experimental study.” J. Compos. Constr.JCCOF2, 11(6), 575–589.
Al-Salloum, Y. A., Almusallam, T. H., Alsayed, S. H., and Siddiqui, N. A. (2011a). “Seismic behavior of as-built, ACI-complying and CFRP-repaired exterior RC beam-column joints.” J. Compos. Constr., 15(4), 522–534.JCCOF2
Al-Salloum, Y. A., Siddiqui, N. A., Elsanadedy, H. M., Abadel, A. A., and Aqel, M. A. (2011b). “Textile-reinforced mortar (TRM) versus FRP as strengthening material of seismically deficient RC beam-column joints.” J. Compos. Constr., 15(6), 920–933.JCCOF2
Alsayed, S. H., Almusallam, T. H., Al-Salloum, Y. A., and Siddiqui, N. A. (2010a). “Seismic rehabilitation of corner RC beam-column joints using CFRP composites.” J. Compos. Constr.JCCOF2, 14(6), 681–692.
Alsayed, S. H., Al-Salloum, Y. A., Almusallam, T. H., and Siddiqui, N. A. (2010b). “Seismic response of FRP-upgraded exterior RC beam-column joints.” J. Compos. Constr.JCCOF2, 14(2), 195–208.
ANSYS 11 [Computer software]. (1998). ANSYS, Canonsburg, PA.
Antonopoulos, C., and Triantafillou, T. C. (2002). “Analysis of FRP-strengthened beam-column joints.” J. Compos. Constr.JCCOF2, 6(1), 41–51.
Antonopoulos, C., and Triantafillou, T. C. (2003). “Experimental investigation of FRP-strengthened RC beam-column joints.” J. Compos. Constr.JCCOF2, 7(1), 39–49.
Baglin, P. S., and Scott, R. H. (2000). “Finite element modeling of reinforced concrete beam-column connections.” Struct. J., 79(6), 886–894.ASTJEG
Bindhu, K. R., and Jaya, K. P. (2008). “Performance of exterior beam-column joint with cross-inclined bars under seismic type loading.” J. Eng. Appl. Sci.JOASDI, 3(7), 591–597.
El-Amoury, T., and Ghobarah, A. (2002). “Seismic rehabilitation of beam-column joint using GFRP sheets.” Eng. Struct.ENSTDF, 24(11), 1397–1407.
Gergely, J, Pantelides, C P., and Reaveley, L. D. (2000). “Shear strengthening of RCT-joints using CFRP composites.” J. Compos. Constr.JCCOF2, 4(2), 56–64.
Gergely, J., Pantelides, C. P., Nuismer, R. J., and Reaveley, L. D. (1998). ‘‘Bridge pier retrofit using fiber-reinforced plastic composites.’’ J. Compos. Constr.JCCOF2, 2(4), 165–174.
Ghobarah, A. and Said, A. (2001). “Seismic rehabilitation of beam-column joints using FRP laminates.” J. Earthquake Eng., 5(1), 113–129.
Ghobarah, A., and El-Amoury, T. (2005). “Seismic rehabilitation of deficient exterior concrete frame joints.” J. Compos. Constr.JCCOF2, 9(5), 408–416.
Ghobarah, A., and Said, A. (2002). “Shear strengthening of beam-column joints.” Eng. Struct.ENSTDF, 24(7), 881–888.
Haach, V. G., De Cresce El Debs, A. L. H., and El Debs, M. K. (2008). “Evaluation of the influence of the column axial load on the behavior of monotonically loaded R/C exterior beam-column joints through numerical simulations.” Eng. Struct.ENSTDF, 30(4), 965–975.
Hognestad, E., Hanson, N., and McHenry, D. (1955). “Concrete stress distribution in ultimate strength design.” J. Am. Concr. Inst.JACIAX, 52(6), 455–479.
Johansson, M. (2000). “Nonlinear finite-element analysis of concrete frame corners.” J. Struct. Eng.JSENDH, 126(2), 190–199.
Li, B., Tran, C. T. N., and Pan, T. (2009). “Experimental and numerical investigations on the seismic behavior of lightly reinforced concrete beam-column joints.” J. Struct. Eng.JSENDH, 135(9), 1007–1018.
Lowes, L. N., and Altoontash, A. (2003). “Modeling the response of reinforced concrete beam column joints.” J. Struct. Eng.JSENDH, 129(12), 1686–1697.
Mostoufinezhad, D., and Talaeitaba S. B. (2006). “Finite element modeling of RC connections strengthened with FRP laminates.” Iran. J. Sci. Technol. Trans. B Eng., 30(B1), 21–30.
Mukherjee, A., and Joshi, M. (2005). “FRPC reinforced concrete beam-column joints under cyclic excitation.” Compos. Struct.COMSE2, 70(2), 185–199.
Niroomandi, A. Maheri, A., Maheri, M. R., and Mahinid, S. S. (2010). “Seismic performance of ordinary RC frames retrofitted at joints by FRP sheets.” Eng. Struct.ENSTDF, 32(8), 2326–2336.
Pampanin, S., Bolognini, D., and Pavese, A. (2007). “Performance-based seismic retrofit strategy for existing reinforced concrete frame systems using fiber-reinforced polymer composites.” J. Compos. Constr.JCCOF2, 11(2), 211–226.
Parvin, A., and Granata, P. (2000). “Investigation on the effects of fiber composites at concrete joints.” Composites Part BCMENEZ, 31(6), 499–509.
Prota, A., Nanni, A., Manfredi, G., and Cosenza, E. (2004). “Selective upgrade of underdesigned reinforced concrete beam-column joints using carbon fiber-reinforced polymers.” Struct. J., 101(5), 699–707.ASTJEG
Sagbas, G. (2007). “Nonlinear finite element analysis of beam column joint subassemblies.” M.S. thesis, Dept. of Civil Engineering, Univ. of Toronto, Toronto.
Triantafillou, T. C., Papanicolaou, C. G., Zissimopoulos, P., and Laourdekis, T. (2006). “Concrete confinement with textile-reinforced mortar jackets.” Struct. J., 103(1), 28–37.ASTJEG
William, K., and Warnke, E. P. (1975). “Constitutive model for the triaxial behavior of concrete.” Colloquium on Concrete Structures Subjected to Triaxial Stresses: Proc., Int. Assoc. for Bridge and Structural Engineering (IABSE) Vol. 19, ISMES, Bergamo, Italy, 1–30.
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 16 • Issue 3 • June 2012
Pages: 308 - 321
Copyright
© 2012. American Society of Civil Engineers.
History
Received: May 16, 2011
Accepted: Oct 31, 2011
Published online: Nov 3, 2011
Published in print: Jun 1, 2012
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