Latest Advances in Finite Element Modelling and Model Updating of Cable-Stayed Bridges

Infrastructures

Nam Hoang¹  Thomas Sharry²  Erwin Oh²  Hong Guan²  Andy Nguyen³ 

[1] Department of Civil Engineering, University of Management and Technology, Ho Chi Minh City 70800, Vietnam;School of Engineering and Built Environment, Griffith University, Gold Coast, QLD 4222, Australia;School of Engineering, University of Southern Queensland, Springfield Central, QLD 4300, Australia;

关键词: cable-stayed bridge;    structural health monitoring;    finite element modelling;    model updating;   

DOI  :  10.3390/infrastructures7010008

来源: DOAJ

【 摘 要 】

As important links in the transport infrastructure system, cable-stayed bridges are among the most popular candidates for implementing structural health monitoring (SHM) technology. The primary aim of SHM for these bridges is to ensure their structural integrity and satisfactory performance by monitoring their behaviour over time. Finite element (FE) model updating is a well-recognised approach for SHM purposes, as an accurate model serves as a baseline reference for damage detection and long-term monitoring efforts. One of the many challenges is the development of the initial FE model that can accurately reflect the dynamic characteristics and the overall behaviour of a bridge. Given the size, slenderness, use of long cables, and high levels of structural redundancy, precise initial models of long-span cable-stayed bridges are desirable to better facilitate the model updating process and to improve the accuracy of the final updated model. To date, very few studies offer in-depth discussions on the modelling approaches for cable-stayed bridges and the methods used for model updating. As such, this article presents the latest advances in finite element modelling and model updating methods that have been widely adopted for cable-stayed bridges, through a critical literature review of existing research work. An overview of current SHM research is presented first, followed by a comprehensive review of finite element modelling of cable-stayed bridges, including modelling approaches of the deck girder and cables. A general overview of model updating methods is then given before reviewing the model updating applications to cable-stayed bridges. Finally, an evaluation of all available methods and assessment for future research outlook are presented to summarise the research achievements and current limitations in this field.

【 授权许可】

Unknown