Shear Resistance Mechanism of Posttensioned Precast Concrete Members
Publication: Journal of Structural Engineering
Volume 139, Issue 12
Abstract
An analytical model to investigate the shear resistance mechanism of a posttensioned precast concrete (PPC) member is proposed. The model is based on the truss mechanism. The compatibility of strains and the equilibrium of stresses of the shear cracked concrete, prestressing steel, and shear reinforcement are applied to the shear model. The proposed truss model consists of three stress zones (zones 1, 2, and 3). Triangle struts of cover concrete subjected to uniaxial compressive stress are defined as zone 1. Biaxial stress zones of diagonally cracked concrete between the longitudinal bar and prestressing steel are defined as zone 2. Zone 3 is defined as the diagonally cracked concrete zone between both compression and tension prestressing steels. The model considers the bond characteristics of prestressing steel. The proposed truss model is useful to predict not only shear strength, but also the shear deformation, tensile stress in shear reinforcement, and failure mode of a PPC member. By comparison of experimental and analytical results, an accuracy of analytical results by the proposed method was verified. The proposed method evaluated experimental results, which are shear strength, shear strain, and tensile stress in shear reinforcement in a good accuracy.
Get full access to this article
View all available purchase options and get full access to this article.
References
Architectural Institute of Japan (AIJ). (1998). “Standard for structural design and construction of prestressed concrete structures.” Tokyo, Japan, 233–234 (in Japanese).
Architectural Institute of Japan (AIJ). (1999). “Design guidelines for earthquake resistant reinforced concrete buildings based on inelastic displacement concept.” Tokyo, Japan, 175–190 (in Japanese).
Bentz, E. C., Vecchio, F. J., and Collins, M. P. (2003). “Simplified modified compression field theory for calculating shear strength of reinforced concrete elements.” ACI Struct. J., 103(4), 614–624.
Collins, M. P., and Mitchell, D. (1991). Prestressed concrete structures, Prentice Hall, Englewood Cliffs, NJ, 309–375.
Fédération International de la Précontrainte (CEB-FIP). (1978). “Model code for concrete structures, CEB-FIP international recommendations.” 3rd Ed., Comité Euro-International du Béton, Paris.
Ghiassi, B., and Soltani, M. (2010). “Local stress field approach for shear failure assessment of reinforced concrete members.” J. Adv. Concr. Technol., 8(2), 223–238.
Hognestad, E. (1952). “What do we know about diagonal tension and web reinforcement in concrete.”, Univ. of Illinois Engineering Experiment Station, IL.
Ichinose, T. (1995). “Truss mechanism in critical region of RC member.” J. Struct. Constr. Eng., 1(475), 129–135 (in Japanese).
Kiuchi, Y., Kato, H., and Takamatsu, K. (2000). “Experimental study on bond property between PC tendon and concrete (part 2 discussion on bond-slip relationships).” Summaries of technical papers of annual meeting, Architectural Institute of Japan (AIJ), Tohoku, Japan, 1013–1014 (in Japanese).
Lee, J., Nishiyama, M., and Tani, M. (2010a). “Evaluation of shear design procedures for prestressed concrete members.” Proc., 3rd FIB Int. Congress 2010, EAD 11-455, Vol. 4, Curran Associates, Red Hook, NY, 3697–3711.
Lee, J., Tani, M., Kono, S., and Sakashita, M. (2010b). “Diagonal tension failure of post-tensioned precast concrete beam with high strength shear reinforcement.” Proc. Jpn. Concr. Inst., 32(2), 493–498 (in Japanese).
Mitchell, D., and Collins, M. P. (1974). “Diagonal compression field theory—A rational model for structural concrete in pure torsion.” ACI J. Proc., 71(8), 396–408.
Mori, K., et al. (2009). “Flexure and shear behavior of post-tensioned precast concrete columns made of high performance materials.” Summaries of technical papers of annual meeting, Architectural Institute of Japan (AIJ), Tohoku, Japan, 843–846 (in Japanese).
Ohtaga, K., Yuasa, N., and Hamahara, M. (2002). “Experimental study on shear behavior of precast prestressed concrete beams (part 4 discussion of test results).” Summaries of technical papers of annual meeting, Architectural Institute of Japan (AIJ), Hokuriku, Japan, 991–992 (in Japanese).
Ritter, W. (1899). “Die Bauweise Hennebique (Construction techniques of Hennebique).” Schweizererische Bauzeitung, A. Waldner, Zürich, Switzerland.
Shima, H., Chou, L. L., and Okamura, H. (1987). “Bond characteristics in post-yield range of deformed bars.” J. Mater. Concr. Struct. Pavements, 6(378), 213–220 (in Japanese).
Tani, M. (2009). “The evaluation of structural performance of post-tensioned precast concrete columns.” Ph.D. thesis, Kyoto Univ., Kyoto, Japan (in Japanese).
Vecchio, F. J., and Collins, M. P. (1986). “The modified compression-field theory for reinforced concrete elements subjected to shear.” ACI J., 83(2), 219–231.
Watanabe, F., and Lee, J. (1998). “Theoretical prediction of shear strength and failure mode of reinforced concrete beams.” ACI Struct. J., 95(6), 749–757.
Yuasa, N., Ogawa, T., Kamakura, M., Fukui, T., Uchida, R., and Hamahara, M. (2000). “Experimental study on shear behavior of precast prestressed concrete beams.” Summaries of technical papers of annual meeting, Architectural Institute of Japan (AIJ), Tohoku, Japan, 965–970 (in Japanese).
Yuasa, N., Ohtaga, K., Fukui, T., and Hamahara, M. (2001). “Experimental study on shear behavior of precast prestressed concrete beams.” Summaries of technical papers of annual meeting, Architectural Institute of Japan (AIJ), Kanto, Japan, 955–960 (in Japanese).
Yuasa, N., Ohtaga, K., and Hamahara, M. (2002). “Experimental study on shear behavior of precast prestressed concrete beams (part 5 discussion of ultimate shear strength of test beams).” Summaries of technical papers of annual meeting, Architectural Institute of Japan (AIJ), Hokuriku, Japan, 993–994 (in Japanese).
Information & Authors
Information
Published In
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Dec 12, 2011
Accepted: Dec 27, 2012
Published online: Sep 5, 2013
Published in print: Dec 1, 2013
Discussion open until: Feb 5, 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.