Strengthening of Reinforced Concrete Arches with Externally Bonded Composite Materials: Testing and Analysis
Publication: Journal of Composites for Construction
Volume 19, Issue 1
Abstract
An experimental and analytical study that includes testing to failure of fiber-reinforced polymer (FRP) strengthened medium-scaled reinforced concrete shallow arches and the application of a specially tailored high-order finite element for their analysis is presented. Three arches are tested. One is used as a control arch, whereas the other two are strengthened with externally bonded FRP strips in different patterns. The loading system includes six nonsymmetric vertical point loads equally spaced along the arch. The theoretical study is based on a multilayered finite-element approach, which accounts for the deformability of the adhesive layer and its shear and radial normal (through the thickness) stiffness. The arch is modeled as a polygon that consists of inclined specially tailored high-order finite elements. The results show that applying the FRP strips leads to an increase of about 40% in the failure load of the arch, changes to the cracking pattern, and a significant increase in deflection capacity. Edge debonding of the FRP strip is observed during the test but without causing total failure of the arch. The ability of the theoretical model to describe the overall structural response, the stress transfer mechanism in the strengthened arch, and the interfacial stresses and the local stress concentrations near irregular points are also demonstrated. Together they throw light on the behavior of the FRP-strengthened arch and on the evolution of its failure mechanism.
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Acknowledgments
The work reported in this paper was supported by the Australian Research Council (ARC) through a Discovery Project (DP0987939).
References
Avossa, A. M., Famigliuolo, P., and Malangone, P. (2008). “Structural safety evaluation of a R.C. arch bridge.” Life-cycle Civil Engineering—Proc., 1st Int. Symp. on Life-Cycle Civil Engineering, CRC Press, 697–702.
Bakis, C. E., et al. (2002). “Fiber-reinforced polymer composites for construction—State-of-the-art review.” J. Compos. Constr., 73–87.
Billington, D. P. (1979). Robert Maillart’s bridges: Art of engineering, Princeton University Press, Princeton, NJ.
Borri, A., Castori, G., and Corradi, M. (2011). “Intrados strengthening of brick masonry arches with composite materials.” Composites Part B, 42(5), 1164–1172.
Briccoli Bati, S., Fagone, M., and Rotunno, T. (2013). “Lower bound limit analysis of masonry arches with CFRP reinforcements: A numerical method.” J. Compos. Constr., 543–553.
Caporale, A., Feo, L., and Luciano, R. (2012). “Limit analysis of FRP strengthened masonry arches via nonlinear and linear programming.” Composites Part B, 43(2), 439–446.
Chen, J. F. (2002). “Load-bearing capacity of masonry arch bridges strengthened with fibre reinforced polymer composites.” Adv. Struct. Eng., 5(1), 37–44.
Czaderski, C., and Rabinovitch, O. (2010). “Structural behavior and inter-layer displacements in CFRP plated steel beams—Optical measurements, analysis, and comparative verification.” Composites Part B, 41(4), 276–286.
De Lorenzis, L., and Zavarise, G. (2009). “Interfacial stress analysis and prediction of debonding for a thin plate bonded to a curved substrate.” Int. J. Non Linear Mech., 44(4), 358–370.
Drosopoulos, G. A., Stavroulakis, G. E., and Massalas, C. V. (2007). “FRP reinforcement of stone arch bridges: Unilateral contact models and limit analysis.” Composites Part B, 38(2), 144–151.
Dym, C. L., and Williams, H. E. (2011). “Stress and displacement estimates for arches.” J. Struct. Eng., 49–58.
Elmalich, D., and Rabinovitch, O. (2009a). “Masonry and monolithic circular arches strengthened with composite materials—A finite element model.” Comput. Struct., 87(9–10), 521–533.
Elmalich, D., and Rabinovitch, O. (2009b). “Stress analysis of monolithic circular arches strengthened with composite materials.” J. Compos. Constr., 431–441.
Elmalich, D., and Rabinovitch, O. (2010). “Nonlinear analysis of masonry arches strengthened with composite materials.” J. Eng. Mech., 996–1005.
Elmalich, D., and Rabinovitch, O. (2012). “In-plane dynamic excitation of AAC masonry walls patched with FRP—Dynamic testing and analysis.” J. Mech. Mater. Struct., 7(7), 657–686.
Foraboschi, P. (2004). “Strengthening of masonry arches with fiber-reinforced polymer strips.” J. Compos. Constr., 191–202.
Hamed, E., and Rabinovitch, O. (2007). “Geometrically nonlinear effects in the flexural response of masonry walls strengthened with composite materials.” J. Mech. Mater. Struct., 2(5), 829–855.
Hamed, E., and Rabinovitch, O. (2010). “Failure characteristics of FRP-strengthened masonry walls under out-of-plane loads.” Eng. Struct., 32(8), 2134–2145.
Marefat, M. S., Ghahremani-Gargary, E., and Ataei, S. (2004). “Load test of a plain concrete arch railway bridge of 20-m span.” Constr. Build. Mater., 18(9), 661–667.
Nam, J. W., Kim, H. J., Yi, N. H., Kim, I. S., Kim, J. H. J., and Choi, H. J. (2009). “Blast analysis of concrete arch structures for FRP retrofitting design.” Comput. Concr., 6(4), 305–318.
Rabinovitch, O. (2005). “Bending behavior of RC beams strengthened with composite materials using inelastic and nonlinear adhesives.” J. Struct. Eng., 1580–1592.
Rabinovitch, O. (2008). “Debonding analysis of fiber-reinforced-polymer strengthened beams: Cohesive zone modeling versus a linear elastic fracture mechanics approach.” Eng. Fract. Mech., 75(10), 2842–2859.
Rabinovitch, O. (2014). “An extended high order cohesive interface approach for the debonding analysis of FRP strengthened beams.” Int. J. Mech. Sci., 81, 1–16.
Rabinovitch, O., and Frostig, Y. (2000). “Closed-form high-order analysis of RC beams strengthened with FRP strips.” J. Compos. Constr., 65–74.
Rabinovitch, O., and Frostig, Y. (2003). “Experiments and analytical comparison of RC beams strengthened with externally bonded CFRP strips.” Composites Part B, 34(8), 663–667.
Rabinovitch, O., and Madah, H. (2012a). “Dynamics of FRP strengthened unidirectional masonry walls I: A multilayered finite element.” J. Mech. Mater. Struct., 7(1), 1–28.
Rabinovitch, O., and Madah, H. (2012b). “Dynamics of FRP strengthened unidirectional masonry walls II: Experiments and comparison.” J. Mech. Mater. Struct., 7(1), 29–44.
Rizkalla, S., Hassan, T., and Hassan, N. (2003). “Design recommendations for the use of FRP for reinforcement and strengthening of concrete structures.” Prog. Struct. Eng. Mater., 5(1), 16–28.
Rovero, L., Focacci, F., and Stipo, G. (2013). “Structural behavior of arch models strengthened using fiber-reinforced polymer strips of different lengths.” J. Compos. Constr., 249–258.
Salonga, J., and Gauvreau, P. (2014). “Comparative study of the proportions, form, and efficiency of concrete arch bridges.” J. Bridge Eng., 4013010.
Standards Association of Australia (SAA). (1993). “Methods of testing concrete.”, Sydney, Australia.
Standards Association of Australia (SAA). (2007). “Metallic materials—Tensile testing at ambient temperature.”, Sydney, Australia.
Tao, Y., Stratford, T. J., and Chen, J. F. (2011). “Behavior of a masonry arch bridge repaired using fibre-reinforced polymer composites.” Eng. Struct., 33(5), 1594–1606.
Teng, J. G., Chen, J. F., Smith, S. T., and Lam, L. (2003). “Behaviour and strength of FRP- strengthened RC structures: A state-of-the-art review.” Proc. Inst. Civ. Eng. Struct. Build., 156(1), 51–62.
Teng, J. G., Zhang, J. W., and Smith, S. T. (2002). “Interfacial stresses in reinforced concrete beams bonded with a soffit plate: A finite element study.” Constr. Build. Mater., 16(1), 1–14.
Valluzzi, M. R., Valdemarca, M., and Modena, C. (2001). “Behavior of brick masonry vaults strengthened by FRP laminates.” J. Compos. Constr., 163–169.
Wang, J., and Zhang, C. (2010). “A three-parameter elastic foundation model for interface stresses in curved beams externally strengthened by a thin FRP plate.” Int. J. Solids Struct., 47(7–8), 998–1006.
Yang, J., and Ye, J. (2010). “An improved closed-form solution to interfacial stresses in plated beams using a two-stage approach.” Int. J. Mech. Sci., 52(1), 13–30.
Yuan, H., and Li, F. (2010). “Peeling behavior and spalling resistance of CFRP sheets bonded to bent concrete surfaces.” Acta Mech. Sin., 26(2), 257–264.
Zanardo, G., Pellegrino, C., Bobisut, C., and Modena, C. (2004). “Performance evaluation of short span reinforced concrete arch bridges.” J. Bridge Eng., 424–434.
Zhang, J., Li, C., Xu, F., and Yu, X. (2007). “Test and analysis for ultimate load-carrying capacity of existing reinforced concrete arch ribs.” J. Bridge Eng., 4–12.
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© 2014 American Society of Civil Engineers.
History
Received: Dec 3, 2013
Accepted: Apr 8, 2014
Published online: Jun 16, 2014
Discussion open until: Nov 16, 2014
Published in print: Feb 1, 2015
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