Bridge deterioration models for different superstructure types using Markov chains and two-step cluster analysis

Bridges deteriorate due to different causes such as ageing and climatic conditions. As a consequence, repair actions are considered more expensive than maintenance. Therefore, the prediction of maintenance at the bridge network level is particularly complex due to the considerable level of heterogen...

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Bibliographic Details
Published in:Structure and infrastructure engineering 2024-06, Vol.20 (6), p.791-801
Main Authors: Moscoso, Yina F. M., Rincón, Luis F., Leiva-Maldonado, Stefan L., A. S. C. Campos e Matos, Jose
Format: Article
Language:English
Subjects:
Bridge management systems
Cluster analysis
Clustering variables
Degradation models
Engenharia Civil
Engenharia e Tecnologia
Indústria
inovação e infraestruturas
Markov chains models
Probabilistic rating
Science & Technology
Visual inspection
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Summary:Bridges deteriorate due to different causes such as ageing and climatic conditions. As a consequence, repair actions are considered more expensive than maintenance. Therefore, the prediction of maintenance at the bridge network level is particularly complex due to the considerable level of heterogeneity spanning various bridge types and functions. Consequently, in this article an analytical deterioration model called 'two-step cluster analysis' is presented and applied to predict the results of a homogeneous data set. This model had been used in different fields including civil engineering but not for superstructure deterioration forecasting. Variables that interfere with the performance of the structure were considered, such as geometry, volume of traffic, among others. The results show that deterioration drop rapidly if repair treatments were not performed. Variations of up to 20.9% at 50 years between the degradation of the database and the analysis of groups, demonstrates the importance of grouping within the analysis of the database, since the late maintenance can affect the life of the bridge. Preventive actions could significantly mitigate the deterioration process. The applied methodology benefits from current bridge inspection practice and produces a probabilistic rating that is consistent with the Markov approach for model deterioration and grouping variables.
ISSN:1573-2479
1744-8980
DOI:10.1080/15732479.2022.2119583