A risk-based robustness evaluation of a prestressed concrete bridge
(2023) 11th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2022 p.2045-2052- Abstract
Existing bridges were designed to satisfy old specifications, and most of them were based on a member-oriented approach. A bridge superstructure is constituted by a group of elements that together form a system, and depending on how robust the system is, a member-oriented approach losses accuracy. Therefore, in this study a preliminary framework of how to assess concrete bridges' robustness is presented. The framework integrates a metamodel-based reliability analysis, and the risk concepts to evaluate the robustness level for concrete bridges considering failure probabilities and consequences. A case study of a prestressed multi-beam concrete bridge is used to validate and illustrate the methodology. The capacity of the individual... (More)
Existing bridges were designed to satisfy old specifications, and most of them were based on a member-oriented approach. A bridge superstructure is constituted by a group of elements that together form a system, and depending on how robust the system is, a member-oriented approach losses accuracy. Therefore, in this study a preliminary framework of how to assess concrete bridges' robustness is presented. The framework integrates a metamodel-based reliability analysis, and the risk concepts to evaluate the robustness level for concrete bridges considering failure probabilities and consequences. A case study of a prestressed multi-beam concrete bridge is used to validate and illustrate the methodology. The capacity of the individual elements, as well as of the intact and damaged structural system are calculated using finite element modeling (FEM). It was concluded that the framework proposed can be used to assess structural robustness with low computational cost, for the cases in which FEM is implemented.
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- author
- Sarmiento Nova, S. J. ; Gonzalez-Libreros, J. H. ; Sas, G. ; Thons, S. LU ; Bjornsson, I. LU and Díaz, R. S.
- organization
- publishing date
- 2023
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability - Proceedings of the 11th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2022
- editor
- Casas, Joan-Ramon ; Frangopol, Dan M. and Turmo, Jose
- pages
- 8 pages
- publisher
- CRC Press/Balkema
- conference name
- 11th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2022
- conference location
- Barcelona, Spain
- conference dates
- 2022-07-11 - 2022-07-15
- external identifiers
-
- scopus:85186117374
- ISBN
- 9781032345314
- DOI
- 10.1201/9781003322641-253
- language
- English
- LU publication?
- yes
- id
- e44cd2d0-9173-4125-9f8e-d6501d9059ec
- date added to LUP
- 2024-03-20 14:15:30
- date last changed
- 2024-03-20 14:16:21
@inproceedings{e44cd2d0-9173-4125-9f8e-d6501d9059ec,
abstract = {{<p>Existing bridges were designed to satisfy old specifications, and most of them were based on a member-oriented approach. A bridge superstructure is constituted by a group of elements that together form a system, and depending on how robust the system is, a member-oriented approach losses accuracy. Therefore, in this study a preliminary framework of how to assess concrete bridges' robustness is presented. The framework integrates a metamodel-based reliability analysis, and the risk concepts to evaluate the robustness level for concrete bridges considering failure probabilities and consequences. A case study of a prestressed multi-beam concrete bridge is used to validate and illustrate the methodology. The capacity of the individual elements, as well as of the intact and damaged structural system are calculated using finite element modeling (FEM). It was concluded that the framework proposed can be used to assess structural robustness with low computational cost, for the cases in which FEM is implemented.</p>}},
author = {{Sarmiento Nova, S. J. and Gonzalez-Libreros, J. H. and Sas, G. and Thons, S. and Bjornsson, I. and Díaz, R. S.}},
booktitle = {{Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability - Proceedings of the 11th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2022}},
editor = {{Casas, Joan-Ramon and Frangopol, Dan M. and Turmo, Jose}},
isbn = {{9781032345314}},
language = {{eng}},
pages = {{2045--2052}},
publisher = {{CRC Press/Balkema}},
title = {{A risk-based robustness evaluation of a prestressed concrete bridge}},
url = {{http://dx.doi.org/10.1201/9781003322641-253}},
doi = {{10.1201/9781003322641-253}},
year = {{2023}},
}