Stochastic modeling of ambient traffic loadings in LS-DYNA nonlinear FE analysis

Richard A. Livingston; Shuang Jin; Dhafer Marzougui

doi:10.1117/12.435618

3 August 2001 Stochastic modeling of ambient traffic loadings in LS-DYNA nonlinear FE analysis

Richard A. Livingston, Shuang Jin, Dhafer Marzougui

Proceedings Volume 4337, Health Monitoring and Management of Civil Infrastructure Systems; (2001) https://doi.org/10.1117/12.435618
Event: 6th Annual International Symposium on NDE for Health Monitoring and Diagnostics, 2001, Newport Beach, CA, United States

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.

Citation Download Citation

Richard A. Livingston, Shuang Jin, and Dhafer Marzougui "Stochastic modeling of ambient traffic loadings in LS-DYNA nonlinear FE analysis", Proc. SPIE 4337, Health Monitoring and Management of Civil Infrastructure Systems, (3 August 2001); https://doi.org/10.1117/12.435618

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