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

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Title: Development of a Vehicle-Bridge-Soil Dynamic Interaction Model for Scour Damage Modelling
Authors: Prendergast, Luke J.
Hester, David
Gavin, Kenneth
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Date: 2015
Online since: 2016-02-05T13:08:45Z
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 loading model with a robust foundation soil response model.This paper provides a description of the model development and explains the mathematical theory underlying the model. Finally a case study application of the model using typical bridge, soil, and vehicle properties is provided.
Funding Details: University College Dublin
Type of material: Journal Article
Publisher: Hindawi Publishing Corporation
Journal: Shock and Vibration
Copyright (published version): 2015 the Authors
Keywords: Bridge scourStructural models
DOI: 10.1155/2016/7871089
Language: en
Status of Item: Peer reviewed
Appears in Collections:Civil Engineering Research Collection

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