A Summary Review of Correlations between Temperatures and Vibration Properties of Long-Span Bridges

Guang-Dong Zhou and Ting-Hua Yi

Mathematical Problems in Engineering, 2014, vol. 2014, 1-19

Abstract:

The shift of modal parameters induced by temperature fluctuation may mask the changes of vibration properties caused by structural damage and result in false structural condition identification. Thoroughly understanding the temperature effects on vibration properties of long-span bridges becomes an especially important issue before vibration-based damage detection methodologies are applied in real bridges. This paper presents an overview of current research activities and developments in the field of correlations between temperatures and vibration properties of long-span bridges. The theoretical derivation methods using classical structural dynamics and closed-form formulations are first briefly introduced. Then the trend analysis methods that are intended to extract the degree of variability in vibration property under temperature variation for different bridges by numerical analysis, laboratory test, or field monitoring are reviewed in detail. Following that, the development of quantitative models to quantify the temperature influence on vibration properties is discussed including the linear model, nonlinear model, and learning model. Finally, some promising research efforts for promoting the study of correlations between temperatures and vibration properties of long-span bridges are suggested.

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:638209

DOI: 10.1155/2014/638209

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