Effect of Truck Loads on Bridges
Publication: Journal of Transportation Engineering
Volume 119, Issue 6
Abstract
This paper determines the truck‐load spectra for highway bridges. The weigh‐in‐motion data was collected at weigh stations located on Highways I‐75 and I‐94. The total number of trucks considered in this study is over 600,000. For each truck, the measured parameters include axle loads and axle spacings. Bridge load is considered in terms of moments and shears. Therefore, maximum moments and shears are calculated for each truck for various span lengths. The results are plotted on the normal‐probability paper to facilitate statistical interpretations. The cumulative distribution functions of moments and shears are used to extrapolate the results to predict the maximum forces in longer time periods, up to 75 years. Truck counts were carried out on U.S.‐23 and I‐94 to determine the number of trucks per lane and multiple presence frequency in lane and side by side.
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References
1.
Benjamin, J., and Cornell, C. A. (1970). Probability, statistics and decision for civil engineers. McGraw‐Hill, New York, N.Y.
2.
Nowak, A. S., and Nassif, H. (1991). “Effect of truck loading on bridges.” Rep. UMCE 91‐11, Dept. of Civ. Engrg., Univ. of Michigan, Ann Arbor, Mich.
3.
Nowak, A. S., and Hong, E.‐S. (1991). “Bridge live load models.” J. Struct. Engrg., ASCE, 117(9), 2757–2767.
4.
Standard specifications for highway bridges. (1992). American Association of State Highway and Transportation Officials (AASHTO), Washington, D.C.
Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 119 • Issue 6 • November 1993
Pages: 853 - 867
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Oct 6, 1992
Published online: Nov 1, 1993
Published in print: Nov 1993
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