Experimental Study on Bond Behavior of Deformed Bars Embedded in Concrete Subjected to Biaxial Lateral Tensile Compressive Stresses
This article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYPublication: Journal of Materials in Civil Engineering
Volume 26, Issue 4
Abstract
The bond behavior of deformed reinforcing bars, which is important to the assessment and design of reinforced concrete structures, is greatly influenced by the stress state in concrete. Because the effect of biaxial lateral tensile-compressive stresses on the bond behavior of deformed bars is seldom studied, an experimental investigation is presented in this paper. A total of 252 pull-out specimens with different strengths of concrete, bar diameters, and combinations of lateral tensile-compressive stresses were included in the test. The results show that the failure mode of specimens with deformed bars is influenced by the strength of concrete, ratio of the cover depth to bar diameter , and the coupling effect of lateral stresses . The bond strength and the slip at the peak bond stress decrease by increasing , whereas the deteriorating ratio depends on the strength of concrete and for specimens failed by pull-out and splitting, respectively. Regardless of , the ratio of the residual and ultimate bond strength for the specimens in pullout failure basically keeps constant. An empirical bond stress-slip relationship is proposed. For different strengths of concrete, bar diameters, and combinations of lateral stresses, the proposed bond stress-slip relationship is in good agreement with experimental results.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The financial support from the National Natural Science Foundation with Grant Nos. 51078057 and 51121005, the Open Research Fund Program of State Key Laboratory of Hydroscience and Engineering with Grant No. sklhse-2008-D-03, and the National Basic Research Program (973 Program) with Grant No. 2009CB623200, of the People’s Republic of China, is greatly acknowledged.
References
Cairns, J. (1979). “An analysis of the ultimate strength of lapped joints of compression reinforcement.” Mag. Concr. Res., 31(106), 19–27.
Campione, G., Cucchiara, C., La Mendola, L., and Papia, M. (2005). “Steel-concrete bond in lightweight fiber reinforced concrete under monotonic and cyclic actions.” Eng. Struct., 27(6), 881–890.
Comité Euro-International du Béton (CEB-FIP). (1993). “CEB-FIP model code.” MC-90, London.
Comité Euro-International du Béton (CEB-FIP). (2010). “CEB-FIP model code 2010, first completed draft.” Vol. 1, Lausanne, Switzerland.
Eibl, J., Akkermann, J., Idda, K., and Lucero-Cimas, H. N. (1998). “Ductility of reinforced concrete structures: Rotational behavior of reinforced concrete corners and bond under lateral tension.” Bulletin d’information, Comité Euro-International du Béton (CEB-FIP), Lausanne, Switzerland, 259–273.
Eligehausen, R., Popov, E. P., and Bertero, V. V. (1983). “Local bond stress-slip relationships of deformed bars under generalized excitations.”, Earthquake Engineering Research Center, Univ. of California, Berkeley, CA.
Fédération Internationale du Béton (fib). (2000). “Bond of reinforcement in concrete: State-of-art report.” Bulletin d’information No. 10, Lausanne, Switzerland.
Kupfer, H., Hilsdorf, H. K., and Rusch, H. (1969). “Behavior of concrete under biaxial stresses.” J. Am. Concr. Inst., 66(8), 656–666.
Laldji, S., and Young, A. G. (1988). “Bond between steel strand and cement grout in ground anchorage.” Mag. Concr. Res., 40(143), 90–98.
Lindorf, A., Lemnitzer, L., and Curbach, M. (2009). “Experimental investigations on bond behaviour of reinforced concrete under transverse tension and repeated loading.” Eng. Struct., 31(7), 1469–1476.
Lutz, L. A., and Gergely, P. (1967). “Mechanics of bond and slip of deformed bars in concrete.” J. Am. Concr. Inst., 64(11), 711–721.
Malvar, L. J. (1992). “Bond of reinforcement under controlled confinement.” ACI Mater. J., 89(6), 593–601.
Malvar, L. J. (1995). “Tensile and bond properties of GFRP reinforcing bars.” ACI Mater. J., 92(3), 276–285.
Mirza, S. M., and Houde, J. (1979). “Study of bond stress-slip relationships in reinforced concrete.” J. Am. Concr. Inst., 76(1), 19–46.
Moosavi, M., Jafari, A., and Khosravi, A. (2005). “Bond of cement grouted reinforcing bars under constant radial pressure.” Cem. Concr. Compos., 27(1), 103–109.
Navaratnarajah, V. (1982). “Influence of tensile release in concrete on transfer bond of reinforcement bars.” Proc., Int. Conf., Bond in Concrete, Applied Science, London, U.K., 250–255.
Navaratnarajah, V., and Speare, P. R. S. (1986). “An experimental study of the effects of lateral pressure on the transfer bond of reinforcing bars with variable cover.” ICE Proc., Ice Virtual Library, 81(4), 697–715.
RILEM/Comité Euro-International du Béton. RILEM/CEB/FIP. (1983). “Bond test for reinforcing steel 2: Pullout test.” E & FN SOPN, London, U.K.
Robins, P. J., and Standish, I. G. (1982). “The effect of lateral pressure on the bond of round reinforcing bars in concrete.” Int. J. Adhes. Adhes., 2(2), 129–133.
Robins, P. J., and Standish, I. G. (1984). “The influence of lateral pressure upon anchorage bond.” Mag. Concr. Res., 36(129), 195–202.
Taylor, H. P. J., and Clarke, J. L. (1976). “Some detailing problems in concrete frame structures.” Struct. Eng., 54(1), 19–32.
Tepfers, R. (1979). “Cracking of concrete cover along anchored deformed reinforcing bars.” Mag. Concr. Res., 31(106), 3–12.
Untrauer, R. E., and Henry, R. L. (1965). “Influence of normal pressure on bond strength.” J. Am. Concr. Inst., 62(5), 577–585.
Walker, P., Batayneh, M., and Regan, P. (1997). “Bond strength tests on deformed reinforcement in normal weight concrete.” Mater. Struct., 30(7), 424–429.
Xu, F., Wu, Z., Zheng, J., Hu, Y., and Li, Q. (2012). “Experimental study on the bond behavior of reinforcing bars embedded in concrete subjected to lateral pressure.” J. Mater. Civil Eng., 125–133.
Xu, Y. (1990). “Experimental study of anchorage properties for deformed bars in concrete.” Ph.D. thesis, Dept. of Civil Eng., Tsinghua Univ., China (in Chinese).
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 26 • Issue 4 • April 2014
Pages: 761 - 772
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Mar 10, 2013
Accepted: May 14, 2013
Published online: May 16, 2013
Discussion open until: Oct 16, 2013
Published in print: Apr 1, 2014
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.