Prestressed Composite Girders. I: Experimental Study for Negative Moment
Publication: Journal of Structural Engineering
Volume 118, Issue 10
Abstract
Limited experimental results were reported in the literature on the behavior of prestressed composite girders subjected to negative bending moment. This paper examines experimentally the behavior of prestressed composite steel‐concrete girders. The steel beams were all welded plate girders. Five composite specimens were tested to study the various aspects of prestressed composite girders, including the effects of construction stages, prestressing sequence, tendon type, and compactness of the plate girders on their structural performance. Load versus midspan deflection, strains in the concrete deck and steel girder, and the force increase in the prestressing tendons due to the applied loads were measured and studied. The test results showed that prestressing a composite girder in the negative moment region increases its stiffness by preventing the cracking of concrete under service loads; enlarges the elastic range; and increases the ultimate capacity due to the effective use of high‐strength tendons.
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References
1.
Ayyub, B. M., Sohn, Y. G., Saadatmanesh, H. (1988). “Static strength of prestressed composite steel girders.” Final Report, Grant no. ECE 8413204, National Science Foundation, Washington, D.C.
2.
Ayyub, B. M., Sohn, Y. G., and Saadatmanesh, H. (1992). “Prestressed composite girders: analytical study for negative moment.” J. Struct. Engrg., ASCE, 118(10), 2763–2783.
3.
Ayyub, B. M., Sohn, Y. G., and Saadatmanesh, H. (1990). “Prestressed composite girders under positive moments.” J. Struct. Engrg., ASCE, 116(11), 2931–2951.
4.
Basu, P. K., Sharif, A. M., and Ahmed, H. U. (1987). “Partially prestressed continuous composite beams I and II.” J. Struct. Engrg., ASCE, 113(9), 1926–1938.
5.
Dunker, K. F., Klaiber, F. W., and Sanders, W. W., Jr. (1986). “Post‐tensioning distribution in composite girders.” J. Struct. Engrg., ASCE, 112(11), 2540–2553.
6.
Dunker, K. F., Klaiber, F. W., Daoud, F. K., and Sanders, W. W., Jr. (1990). “Strengthening continuous composite bridges.” J. Struct. Engrg., ASCE, 116(9), 2464–2480.
7.
“Highway bridge replacement and rehabilitation program.” (1986). Eighth Annual Report of the Secretary of Transportation to the Congress of the United States, Federal Highway Admin., Bridge Division, Washington, D.C.
8.
Kennedy, J. B., and Grace, J. F. (1982). “Prestressed decks in continuous composite bridges.” J. Struct. Engrg., ASCE, 108(11), 2394–2410.
9.
Magura, D. D., Sozen, M. A., and Siess, C. P. (1964). “A study of stress relaxation in prestressing reinforcement.” PCI J., 9(2), 13–57.
10.
Saadatmanesh, H., Albrecht, P., and Ayyub, B. M. (1989). “Experimental study of prestressed composite beams.” J. Struct. Engrg., ASCE, 115(9), 2349–2364.
11.
Sarnes, F. W., Jr., (1975). “Prestressing continuous composite steel‐concrete bridges,” Master's thesis, Lehigh University, Bethlehem, Pa.
12.
Standard specifications for highway bridges. 13th Ed. (1983). American Association of State Highway and Transportation Officials, Washington, D.C.
13.
Tochacek, M., and Amrheim, F. G. (1971). “Which design concept for prestressed steel.” AISC Engrg. J., 18–30.
14.
Troitsky, M. S. (1990). Prestressed steel bridges. Van Nostrand Reinhold Company, New York, N.Y.
15.
Wiley, W. E., Klaiber, F. W., and Dunker, K. F. (1989). “Behavior of composite steel bridge beams subjected to various posttensioning schemes.” Trans. Res. Rec., 1223, 63–72.
Information & Authors
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Published In
Journal of Structural Engineering
Volume 118 • Issue 10 • October 1992
Pages: 2743 - 2762
Copyright
Copyright © 1992 ASCE.
History
Published online: Oct 1, 1992
Published in print: Oct 1992
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