TECHNICAL NOTES
Aug 1, 1991
Segmental Box Girder: Effect of Spatial Random Variability of Material on Deflections
Publication: Journal of Structural Engineering
Volume 117, Issue 8
Abstract
A previous analysis of the means and confidence limits of bridge deflections and axial shortening due to uncertainty of material parameters is extended to consider the combined effect of random variability of material parameters and random spatial variability of material compliance. The latter effect is calculated in a simplified manner adpating the scheme of latin hypercube sampling and using a limited number of terms in the spectral decomposition of the power-response function of creep compliance in space. It is found that the effect of spatial random variability is rather small compared to the effect of randomness of material parameters. In practice it can be neglected, although the present approximate calculation is not difficult.
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References
1.
Bažant, Z. P., and Kim, J.‐K. (1989). “Segmental box girder: Deflection probability and Bayesian updating.” J. Struct. Engrg., ASCE, 115(10), 2528–2547.
2.
Shiu, K. N., Daniel, J. P., and Russell, H. G. (1983). “Time‐dependent behavior of segmental cantilever concrete bridges.” Report, Construction Technology Laboratories, Portland Cement Association, Skokie, Ill.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 117 • Issue 8 • August 1991
Pages: 2542 - 2547
Copyright
Copyright © 1991 ASCE.
History
Published online: Aug 1, 1991
Published in print: Aug 1991
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Authors
Affiliations
Zdeněk P. Bažant, Fellow, ASCE
Walter P. Murphy Prof. of Civ. Engrg., McCormick School of Engrg. and Appl. Sci., Northwestern Univ., Evanston, IL 60208‐3109
Joong‐Koo Kim
Grad. Res. Asst., McCormick School of Engrg. and Appl. Sci., Northwestern Univ., Evanston, IL
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.