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Analysing the impact of local factors on the life cycle of metallic bridge girders

Calvert, Gareth; Hamer, Matthew; Neves, Luis; Andrews, John

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Authors

Gareth Calvert

Matthew Hamer

Dr Luis Neves Luis.Neves@nottingham.ac.uk
DIRECTOR OF PRODUCT AND LEARNER EXPERIENCE



Contributors

Fabio Biondini
Editor

Dan M. Frangopol
Editor

Abstract

A fundamental component of a life cycle analysis of a bridge is the modelling of asset condition post-construction. To enhance the accuracy of bridge deterioration models, several studies have calibrated models based on cohorts that incorporate structural characteristics and local factors. However, it is common that these characteristics are independently modelled to avoid sparse cohorts. In this study, a bridge element deterioration model is developed that can simultaneously incorporate multiple structural and local characteristics. The incorporation of multiple co-variates is made possible by an approach that exploits the multiple defect deterioration model proposed by Calvert et al. (2021). The model is tested on a cohort of 36,075 metallic bridge girders from bridges on the British railway network. The modelling approach is shown to provide statistically significant improvements in the prediction accuracy of deterioration. Moreover , a life cycle analysis outlines the significant cost and condition differences between benign and aggressive cohorts.

Citation

Calvert, G., Hamer, M., Neves, L., & Andrews, J. (2023, July). Analysing the impact of local factors on the life cycle of metallic bridge girders. Presented at Eighth International Symposium on Life-Cycle Civil Engineering (IALCCE 2023), Milan, Italy

Presentation Conference Type Conference Paper (published)
Conference Name Eighth International Symposium on Life-Cycle Civil Engineering (IALCCE 2023)
Start Date Jul 2, 2023
End Date Jul 6, 2023
Acceptance Date Feb 21, 2023
Online Publication Date Jun 28, 2023
Publication Date 2023
Deposit Date Apr 21, 2023
Publicly Available Date Apr 21, 2023
Book Title Life-Cycle of Structures and Infrastructure Systems: PROCEEDINGS OF THE EIGHTH INTERNATIONAL SYMPOSIUM ON LIFE-CYCLE CIVIL ENGINEERING (IALCCE 2023), 2-6 JULY, 2023, POLITECNICO DI MILANO, MILAN, ITALY
Public URL https://nottingham-repository.worktribe.com/output/19788331
Related Public URLs https://www.taylorfrancis.com/books/oa-edit/10.1201/9781003323020/life-cycle-structures-infrastructure-systems-fabio-biondini-dan-frangopol

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