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.
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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.
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5.
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9.
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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
Journal of Structural Engineering
Volume 111 • Issue 12 • December 1985
Pages: 2675 - 2690
Copyright
Copyright © 1985 ASCE.
History
Published online: Dec 1, 1985
Published in print: Dec 1985
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