Analytical Study of Prestressed Composite Beams
Publication: Journal of Structural Engineering
Volume 115, Issue 9
Abstract
This paper analyzes the behavior of steel beams prestressed with highstrength steel tendon and compositely connected to a concrete deck. In particular, the deflection and the strains in the steel beam, concrete deck, and tendons are calculated in the positive and negative bending moment regions, over the full range of loading to failure. Three types of composite beams are considered: (1) Conventional composite beam without prestressing tendon; (2) composite beam with tendons anchored at the ends, but not prestressed; and (3) composite beam with tendons prestressed. The load‐deflection and the load‐strain behavior of these beams are compared. The analysis shows that the ultimate and the yield loads can be increased substantially by adding high‐strength tendons to the composite beams and prestressing them.
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References
1.
Hoadley, P. G. (1963). “Behavior of prestressed composite steel beams.” J. Struct. Div., ASCE, 89(3), 21–34.
2.
Reagan, R. S., and Krahl, N. W. (1967). “Behavior of prestressed composite beams.” J. Struct. Div., ASCE, 93(6), 87–108.
3.
Saadatmanesh, H., Albrecht, P., and Ayyub, B. M. (1989). “Experimental study of prestressed composite beams,” J. Struct. Engrg., ASCE, 115(9), 2349–2364.
4.
Szilard, R. (1959). “Design of prestressed composite steel structures.” J. Struct. Div., ASCE, 85(9), 97–124.
5.
Tochacek, M., and Mehta, C. L. (1972). “Economical design of prestressed plate girder,” J. Struct. Div., ASCE, 98(6), 1273–1289.
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Copyright © 1989 ASCE.
History
Published online: Sep 1, 1989
Published in print: Sep 1989
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