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Translated from Problemy Prochnosti, No. 1, pp. 202 – 211, January – February, 2015.
The bond strength of concrete members at reversed cyclic loads is quite different from that of the concrete members at monotonic loads. Reversed cyclic loads produce a progressive bond deterioration that can lead to failure at cyclic stress levels lower than the ultimate stress at monotonic loads. In addition, the structural behavior of concrete members at dominant reversed loads reveals a dramatic reduction of energy dissipation in the hysteresis region due to a severe pinch effect. A method was proposed to predict the structural behavior of concrete members failing in bond after flexural yielding. The method takes into account the bond deterioration due to the degradation of concrete in the postyield range. To verify the bond behavior by the proposed method, predicted results were compared with the experimental data for concrete members at reversed cyclic loads, cited in the literature. Comparison of the experimental and calculated bond behavior of examined concrete members showed reasonable agreement.
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J.-Y. Lee, H. Choi, and J.-Y. Lim, “Bond deformability of reinforced concrete members,” in: Proc. of the 15th World Conf. on Earthquake Engineering, Lisbon, Portugal (2012), 10 p.
T. Ichinose, “Splitting bond failure of columns under seismic action,” ACI Struct. J., 92, No. 5, 535–542 (1995).
J.-Y. Lee and F. Watanabe, “Shear deterioration of reinforced concrete beams subjected to reversed cyclic loading,” ACI Struct. J., 100, No. 4, 480–489 (2003).
M. Masuo, “Evaluation of ultimate shear strength and yield deformation of reinforced concrete columns and beams,” Trans. AIJ, 452, 87–97 (1993).
R. Eligehausen, E. P. Popov, and V. V. Bertero, Load Bond Stress-Slip Relationships of Deformed Bars under Generalized Excitations, Report No. UCB/EERC82-83, Earthquake Engineering Research Center, University of Califonia, Berkeley, CA (1983).
M. H. Harajli, B. S. Hamad, and A. A. Rteil, “Effect of confinement of bond strength between steel bars and concrete,” ACI Struct. J., 101, No. 5, 595–603 (2004).
Z. P. Baþant and R. Desmorat, “Size effect in fiber or bar pullout with interface softening slip,” J. Eng. Mech., 120, No. 9, 1945–1962 (1994). CrossRef
Z. P. Baþant, Z. Li, and M. Thoma, “Identification of stress-slip law for bar or fiber pullout by size effect tests,” J. Eng. Mech., 121, No. 5, 620–625 (1995). CrossRef
S. Morita, S. Fuji, and G. Kondo, “Experimental study on size effect in concrete structures,” in: H. Mihashi, H. Okamura, and Z. P. Baþant (Eds.), Size Effect in Concrete Structures, E&FN Spon, London (1994), pp. 21–40.
ACI 318-11: Building Code Requirements for Structural Concrete and Commentary, American Concrete Institute, Farmington Hills, MI (2011).
T. Paulay and M. J. N. Priestley, Seismic Design of Reinforced Concrete and Masonry Buildings, John Wiley and Sons, New York (1992). CrossRef
W. Ritter, “Die Bauweise Hennebique,” Schweiz. Bauzeit., 33, No. 7, 59–61 (1899).
E. Morsch, “Versuche über Schubspannungen in Betoneisentragern,” Beton und Eisen, 2, No. 4, 269–274 (1903).
F. J. Vecchio and M. P. Collins, “The modified compression-field theory for reinforced concrete elements subjected to shear,” ACI Struct. J., 83, No. 2, 219–231 (1986).
T. T. C. Hsu, “Softened truss model theory for shear and torsion,” ACI Struct. J., 85, No. 6, 624–635 (1988).
J.-Y. Lee and F. Watanabe, “Predicting the longitudinal axial strain in the plastic hinge regions of reinforced concrete beams subjected to reversed cyclic loading,” Eng. Struct., 25, No. 7, 927–939 (2003). CrossRef
J. F. Bonacci and J. K. Wight, “Displacement-based assessment of reinforced concrete frames in earthquakes,” in: Proc. of Mete A. Sozen Symp., ACI Publ. SP-162 (1996), pp. 117–138.
S. Morita and T. Kaku, “Local bond stress-slip relationship under repeated loading,” in: Proc. of IABSE Symp. on Resistance and Ultimate Deformability of Structures Acted on by Well Defined Repeated Loads, Lisbon, Portugal (1973), pp. 221–227.
T. P. Tassios, “Properties of bond between concrete and steel under load cycles idealizing seismic actions,” in: Proc. of AICAP-CEB Symp. (Apr. 1979, Rome), CEB Bull. No. 131, Paris (1979), pp. 67–122.
S. Fujii and S. Morita, “Splitting bond capacities of deformed bars. Part 1. Experimental studies on main factors influencing splitting bond failure,” Trans. AIJ, 319, 47–55 (1982).
J.-Y. Lee, Theoretical Prediction of Shear Strength and Ductility of Reinforced Concrete Beams, A Thesis submitted for the Degree of Doctor of Philosophy, Kyoto University (1998).
- Bond Strength Deterioration of Reinforced and Prestressed Concrete Members at Reversed Cyclic Loads
- Springer US
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