Full-Scale Testing of Pretensioned High-Strength Concrete Girders with Debonded Strands
Publication: Journal of Bridge Engineering
Volume 16, Issue 6
Abstract
The flexural and shear behavior of three full-scale pretensioned high-strength concrete (HSC) bridge girders, which were designed to a modified bulb tee (BT) section according to AASHTO specifications, were investigated experimentally to evaluate the applicability of high-strength concrete and a higher percentage of debonding ratio to pretensioned bridge girders. The test results indicated that performance in terms of load-carrying capacities, ductility, and crack patterns was improved by using high-strength concrete compared to predictions of AASHTO specifications. In addition, the prestressed concrete (PSC) specimen, in which higher percentages of debonded strands were used, showed superior load-carrying capacities, stiffness, and ductility compared to the specimen in which the number of partially debonded strands did not exceed 25% of the total number of strands. A parametric study on the relationship between concrete strength, debonding ratio, and maximum girder length was conducted. Cracking angle analysis was carried out and compared with the AASHTO specifications and RESPONSE 2000 program.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (No. UNSPECIFIED2007-0056796).
References
AASHTO. (2004). Standard specifications for highway bridges, 17th Ed., AASHTO, Washington, DC.
AASHTO. (2007). LRFD bridge design specifications, 4th Ed., Washington, DC.
Canfiled, S. R. (2005). “Full scale testing of prestressed, high performance concrete composite bridge girders.” M.S. thesis, Georgia Inst. of Technology, Atlanta.
Collins, M. P., and Mitchell, D. (1999). Prestressed concrete structures, Prentice Hall, Englewood Cliffs, NJ.
Haines, R. A. (2005). “Shear testing of prestressed high performance concrete bridge girders.” M.S. thesis, Georgia Inst. of Technology, Atlanta.
Han, M. Y., Hwang, E. S., and Lee, C. D. (2003). “Prestressed concrete girder with multistage prestressing concept.” ACI Struct. J., 100(6), 723–731.
Kim, Y. H. (2008). “Characterization of self-consolidating concrete for the design of precast, pretensioned bridge superstructure elements.” Ph.D. thesis, Texas A&M Univ., College Station, TX.
Kuchma, D., Kim, K. S., Nagle, T. J., Sun, S., and Hawkins, N. M. (2008). “Shear tests on high-strength prestressed bulb-tee girders: Strengths and key observations.” ACI Struct. J., 105(3), 358–367.
Ma, Z., Tadros, M. K., and Baishya, M. (2000). “Shear behavior of pretensioned high-strength concrete bridge -girders.” ACI Struct. J., 97(1), 185–192.
Mitchell, D., Cook, W. D., Khan, A. A., and Tham, T. (1993). “Influence of high-strength concrete on transfer and development length of pretensioning strand.” PCI J., 38(3), 52–66.
Oh, B. H., and Kim, K. S. (2004). “Shear behavior of full-scale post-tensioned prestressed concrete bridge girders.” ACI Struct. J., 101(2), 176–182.
Oh, B. H., and Kim, K. S., and Lew, Y. (2002). “Ultimate load behavior of post-tensioned prestressed concrete girder bridge through in-place failure test.” ACI Struct. J., 99(2), 172–180.
Russell, B. W., and Burns, N. H. (1993). “Design guidelines for transfer, development and debonding of large diameter seven wire strands in pretenioned concrete girders.” Research Rep. No. 1210-5F, Center for Transportation Research Bureau of Engineering Research the University of Texas, Austin, TX, 372–428.
Waldron, C. J., Cousins, T. E., Nassar, A. J., and Gomez, J. P. (2005). “Demonstration of use of high-performance lightweight concrete in bridge superstructure in Virginia.” J. Perform. Constr. Facil., 19(2), 146–154.
Witmer, E. A. (1992). “Elementary Bernoulli-Euler beam theory.” Massachusetts Institute of Technology (MIT) Unified Engineering Course Notes. Cambridge, MA, 5-114–5-164.
Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 16 • Issue 6 • November 2011
Pages: 847 - 853
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Aug 23, 2010
Accepted: Mar 28, 2011
Published online: Mar 30, 2011
Published in print: Nov 1, 2011
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.