Posttensioned Trusses: Reliability and Redundancy
Publication: Journal of Structural Engineering
Volume 116, Issue 6
Abstract
This study demonstrates the potential of posttensioning truss bridges. Posttensioning deficient truss bridges using different posttensioning tendon layouts can be a cost‐effective method to strengthen them and to increase the redundancy levels as well as the reliability of the truss structures to meet current and future loading and traffic requirements. Methods for the assessment of the reliability and redundancy of posttensioned trusses are suggested. The effect of posttensioning on the structural strength of the individual components and the overall system of trusses is investigated. Posttensioning enlarges the elastic range, increases the fatigue resistance, redundancy, and relibility, and reduces deflection and member stresses. Thus, the remaining life of a truss bridge can be extended relatively inexpensively.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Ang, A. H.‐S., and Tang, W. (1984). Probability concepts in engineering planning and design, Vol. II, John Wiley and Sons, Inc., New York, N.Y.
2.
Ayyub, B. M., and Haldar, A. (1984). “Practical structural reliability techniques,” J. Struct. Engrg., ASCE, 110(8), 1707–1724.
3.
Csagoly, P. F., and Jaeger, L. G. (1979). “Multi‐load‐path structures for highway bridges.” Transp. Res. Rec., Nat. Academy of Sci., 711, 34–39.
4.
Furuta, H., Shinozuka, and Yao, J. T. P. (1985). “Probabilistic and fuzzy representation of redundancy in structural systems.” Presented to 1st Int. Fuzzy Systems Associated Congress, Palma de Mallorca, Spain.
5.
Guenard, Y., Goyet, Remy, B., and Labeyrie, J. (1987). “Structural safety evaluation of steel jacket platforms.” Marine Structural Reliability Symp., The Ship Structure Committee and Society of Naval Architects and Marine Engrs., 169–183.
6.
Nordal, H., Cornell, C. A., and Karamchandani, A. (1987). “A structural system reliability case study of an eight‐leg steel jacket offshore production platform.” Marine Structural Reliability Symp., The Ship Structure Committee and Society of Naval Architects and Marine Engrs., 193–216.
7.
Shantong, Z. (1986). Prestressed steel structures, Harbin Polytechnical, Inc., China, 144–169 (in Chinese).
8.
Thoft‐Christensen, P., and Baker, M. J. (1982). Structural reliability theory and its applications. Springer‐Verlag, New York, N.Y.
9.
Thoft‐Christensen, P., and Murotsu, Y. (1986). Application of structural systems reliability theory. Springer‐Verlag, New York, N.Y.
10.
Weaver, W., Jr., and Gere, J. M. (1980). Matrix analysis of framed structures, 2nd Ed., Van Nostrand Co., New York, N.Y.
11.
White, G. J., and Ayyub, B. M. (1985). “Reliability methods for ship structures.” Naval Engrs. J., ASNE, 97(4), 86–96.
Information & Authors
Information
Published In
Copyright
Copyright © 1990 ASCE.
History
Published online: Jun 1, 1990
Published in print: Jun 1990
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.