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Proceedings Paper

Stochastic modeling of ambient traffic loadings in LS-DYNA nonlinear FE analysis
Author(s): Richard A. Livingston; Shuang Jin; Dhafer Marzougui
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Paper Abstract

Bridge dynamics data are usually collected as a function of excitations by ambient traffic loads. However, the stochastic aspects of the multi-lane, continuous traffic flows significantly complicate the loading conditions in dynamics analysis of highway bridges. Such ambient traffic loadings often cause incremental changes of structural shear or bending stresses in bridge structures and therefore result in fatigue damage. Most current approaches for modeling traffic loading rely on simple load spectra approximations and address only the maximum effect of the loading. Therefore, they have limited ability to take into account the effect of such multi-lane ambient traffic flow loadings. This paper presents a stochastic modeling and simulation approach to describe ambient traffic flows over the highway bridges.

Paper Details

Date Published: 3 August 2001
PDF: 10 pages
Proc. SPIE 4337, Health Monitoring and Management of Civil Infrastructure Systems, (3 August 2001); doi: 10.1117/12.435618
Show Author Affiliations
Richard A. Livingston, Federal Highway Administration (United States)
Shuang Jin, Federal Highway Administration (United States)
Dhafer Marzougui, George Washington Univ. (United States)

Published in SPIE Proceedings Vol. 4337:
Health Monitoring and Management of Civil Infrastructure Systems
Steven B. Chase; A. Emin Aktan, Editor(s)

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