Pilot Study of Behavior of Concrete Beams Reinforced with Shape Memory Alloys
Publication: Journal of Materials in Civil Engineering
Volume 19, Issue 6
Abstract
This paper discusses the superelastic behavior of shape memory alloy, Nitinol , when used as reinforcement in concrete beams. The ability of to recover and reduce permanent deformations of concrete beams was investigated. Small-scale concrete beams, with reinforcement were tested under half-cycle loads. The reinforcement ratio varied from 0.1 to about 0.9%. The experimental results showed that the average residual displacement in the reinforced beams was less than one-fifth of that of the steel reinforced test beams. The stiffness of reinforced test beams however was lower than those of the steel reinforced test beams. An analytical study of load–deflection relationship for a series of hybrid beams was undertaken. It was found that a hybrid system that incorporated combined with high strength steel or carbon fiber reinforced plastic bars was a better choice for design because of their relatively high stiffness.
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References
ASTM. (2000). “Standard test method for compressive strength of cylindrical concrete specimens.” ASTM C 39-86, Philadelphia.
Auricchio, F. (2001). “A robust integration-algorithm for a finite-strain shape-memory-alloy superelastic model.” Int. J. Plast., 17(7), 971–990.
Auricchio, F., Faravelli, L., Magonette, G., and Torra, V., eds. (2001). “Shape memory alloys. Advances in modeling and applications.” Artes Graficas Torres 17, 08029 Barcelona, Spain.
Ayoub, C., Saiidi, M., and Itani, A. (2003). “A study of shape-memory-alloy-reinforced beams and cubes.” Rep. No. CCEER-03-7, Center for Civil Engineering Earthquake Research, Dept. of Civil Engineering, Univ. of Nevada, Reno, Nev.
Clark, P. W., Aiken, I. D., Kelly, J. M., Higashino, M., and Krumme, R. C. (1995). “Experimental and analytical studies of shape memory alloy dampers for structural control.” Proc. SPIE, 2445, 241–251.
DesRoches, R., and Delemont, M. (2002). “Seismic retrofit of bridges using shape memory alloy.” Eng. Struct., 24(3), 325–332.
DesRoches, R., McCormick, J., and Delemont, M. (2004). “Cyclic properties of superelastic shape memory alloy wires and bars.” J. Struct. Eng., 130(1), 38–46.
Hornbogen, E. (1992). “Alloys with shape memory—New materials for the technology of the future.” Progress in shape memory alloys, S. Eucken, ed., DGM Informationsgesellschaft, Munich, Germany, 3–19.
Johnson, R., Maragakis E., Saiidi, M., DesRoches, R., and Barbero, L. (2004). “Experimental evaluation of seismic performance of SMA bridge restrainers.” Rep. No. CEER 04-02, Center for Civil Engineering Earthquake Research, Dept. of Civil Engineering, Univ. of Nevada, Reno, Nev.
Krstulovic-Opara, N., and Naaman, A. E. (2000). “Self-stressing fiber composites.” ACI Struct. J., 97(2) 335–344.
Krumme, R., Hayes, J., and Sweeney, S. (1995). “Structural damping with shape-memory alloys: One class of devices.” Proc. SPIE, 2445, 225–240.
Nitinol Devices and Components. (NDC) (2005). “Nitinol SE508 wire physical properties.” http://fwmetals.com (Jan. 25, 2006).
Otsuka, K. and Wayman, C. M., and (1998). “Mechanism of shape memory effect and superplasticity.” Shape memory materials, K. Otsuka and C. M. Wayman, eds., Cambridge University Press, Cambridge, U.K., 27–48.
Wehbe, N., and Saiidi, M. (1999). “RCMC v.1.2: A computer program for moment-curvature analysis of confined and unconfined reinforced concrete sections.” Rep. No. CCEER-99-6, Center for Civil Engineering Earthquake Research, Dept. of Civil Engineering, Univ. of Nevada, Reno, Nev.
Wilson, J. C., and Wesolowsky, M. J. (2005). “Shape memory alloys for seismic response modification: A state-of-the-art review.” Earthquake Spectra, 21(2) 569–601.
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© 2007 ASCE.
History
Received: Jun 22, 2005
Accepted: Jul 11, 2006
Published online: Jun 1, 2007
Published in print: Jun 2007
Notes
Note. Associate Editor: David Trejo
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