Nonuniform Bending‐Stress Distribution (Shear Lag)
Publication: Journal of Structural Engineering
Volume 111, Issue 12
Abstract
Nonuniform normal longitudinal stress distribution in a trapezoidal box beam with lateral cantilever is discussed. The problem is solved by the variational method assuming as unknown the displacement of the beam axis and three functions which describe the warping of the horizontal flanges; the unknowns are reduced in case of vertical walls. The state of stress of stress in each structural element is analyzed and an example is given to illustrate the results.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Arnold, V., “Equation Differentielles Ordinaires,” Mir, Moscou, 1974.
2.
Baldascino, B., Dezi, L., and Mentrasti, L., discussion of “A Shear Lag Anomaly,” Nota Tecnica n. 49 I.S.T.C., Universitá di Ancona, Italy, 1983.
3.
Dezi, L., and Mentrasti, L., “Alcune Considerazioni Sulĺ Effetto Shear Lag Nelle Travi a Cassone in Parete Sottile,” Giornale del Genio Civile, n. 7‐8‐9, 1984, pp. 253–262.
4.
Fauchart, J., discussion of “Shear Lag in Box Girders,” by B. O. Kuzmanovic and H. T. Graham, Journal of Structural Engineering, ASCE, Vol. 109, No. 1, 1983, pp. 192–193.
5.
Foutch, D. A., and Chans, P. C., “A Shear Lag Anomaly,” Journal of the Structural Division, ASCE, Vol. 108, No. ST7, July, 1982, pp. 1653–1658.
6.
Gelfand, I. M., and Fomin, S. V., Calculus of Variations, Prentice Hall, 1963.
7.
Kuzmanović, B. O., and Graham, H. J., “Shear Lag in Box Girders,” Journal of the Structural Division, ASCE, Vol. 107, No. ST9, Sept., 1981, pp. 1701–1712.
8.
Massonet, C. E., “A New Approach (Including Shear Lag) to Elementary Mechanics of Materials,” International Journal of Solids and Structures, Vol. 19, No. 1, 1983, pp. 33–54.
9.
Moffat, K. R., and Dowling, P. J., “Shear Lag in Steel Box Girder Bridges,” The Structural Engineer, Oct., 1975, No. 10, Vol. 53, pp. 439–448
(see also discussion, Vol. 54, No. 8, Aug., 1976, pp. 285–298).
10.
Reissner, E., “Analysis of Shear Lag in Box Beams by the Principle of the Minimum Potential Energy,” Quarterly of Applied Mathematics, Vol. 4, No. 3, Oct., 1946, pp. 268–278.
Information & Authors
Information
Published In
Copyright
Copyright © 1985 ASCE.
History
Published online: Dec 1, 1985
Published in print: Dec 1985
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.