30 July 2001 Stochastic system invariant spectrum analysis applied to smart systems in highway bridges
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Abstract
Development smart systems for damage detection and health monitoring of highway bridges using measured response data has been an important research focus. However, difficulty often exists when bridges exhibit significant nonlinear behavior due to aging degradation of structural properties, inelastic deformation and fracture damage, as well as uncertain boundary, environmental and dynamic loading conditions. This paper presents an analysis of system invariant spectrum applied to smart systems in structural health monitoring of general highway bridge systems. In particular, the spatial distribution feature of the system invariant is used to explore changes in a general nonlinear highway bridge structure due to damages.
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Shuang Jin, Richard A. Livingston, Dhafer Marzougui, "Stochastic system invariant spectrum analysis applied to smart systems in highway bridges", Proc. SPIE 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways, (30 July 2001); doi: 10.1117/12.434129; https://doi.org/10.1117/12.434129
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