Development of a Vehicle-Bridge-Soil Dynamic Interaction Model for Scour Damage Modelling

L.J. Prendergast, D. Hester, K. Gavin

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    19 Citations (Scopus)
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    Abstract

    Damage detection in bridges using vibration-based methods is an area of growing research interest. Improved assessment
    methodologies combined with state-of-the-art sensor technology are rapidly making these approaches applicable for real-world
    structures. Applying these techniques to the detection and monitoring of scour around bridge foundations has remained
    challenging; however this area has gained attraction in recent years. Several authors have investigated a range of methods but
    there is still significant work required to achieve a rounded and widely applicable methodology to detect and monitor scour.This
    paper presents a novel Vehicle-Bridge-Soil Dynamic Interaction (VBSDI) model which can be used to simulate the effect of scour
    on an integral bridge. The model outputs dynamic signals which can be analysed to determine modal parameters and the variation
    of these parameters with respect to scour can be examined.The key novelty of this model is that it is the first numerical model for
    simulating scour that combines a realistic vehicle loadingmodel with a robust foundation soil responsemodel.This paper provides a
    description of the model development and explains the mathematical theory underlying themodel. Finally a case study application
    of the model using typical bridge, soil, and vehicle properties is provided.
    Original languageEnglish
    Number of pages15
    JournalShock and Vibration
    Volume2016
    DOIs
    Publication statusPublished - 2016

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