Numerical modelling of circular RC bridge piers reinforced by carbon or stainless steel considering nonuniform geometric-mechanical degradation
Numerical modelling of circular RC bridge piers reinforced by carbon or stainless steel considering nonuniform geometric-mechanical degradation
An advanced numerical model was developed for simulating seismic responses of nonuniformly corroded circular RC bridge columns reinforced by carbon or stainless steel. The model was validated against recent lateral cyclic tests, where both overall hysteresis responses and localised mechanisms were replicated satisfactorily. The verified model was then used as the baseline of a Latin Hypercube simulation, where physics-based, age-dependent failure drift ratios of 175 bridge columns were evaluated. The outputs underline potential dangers of using as-built drift limit recommendations for seismic assessments of seemingly younger (e.g., aged 10~20 years) RC bridges. The recommended critical drift ratios were then summarised using machine learning models and encapsulated in a distributable Matlab App for quick future references.
2843-2854
fib. The International Federation for Structural Concrete
Zhang, Ziliang
1fca0696-ebe9-4ea3-913b-a7ae0888783b
Aminulai, Hammed O.
b2512804-1ab8-41c4-8e6b-f1f0bfb8d7bc
Powrie, William
600c3f02-00f8-4486-ae4b-b4fc8ec77c3c
Kashani, Mohammad M.
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
16 June 2025
Zhang, Ziliang
1fca0696-ebe9-4ea3-913b-a7ae0888783b
Aminulai, Hammed O.
b2512804-1ab8-41c4-8e6b-f1f0bfb8d7bc
Powrie, William
600c3f02-00f8-4486-ae4b-b4fc8ec77c3c
Kashani, Mohammad M.
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Zhang, Ziliang, Aminulai, Hammed O., Powrie, William and Kashani, Mohammad M.
(2025)
Numerical modelling of circular RC bridge piers reinforced by carbon or stainless steel considering nonuniform geometric-mechanical degradation.
Briffaut, Matthieu and Torrenti, Jean Michel
(eds.)
In Concrete structures: extend lifetime, limit impacts: Proceedings of the 2025 fib International Symposium.
fib. The International Federation for Structural Concrete.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
An advanced numerical model was developed for simulating seismic responses of nonuniformly corroded circular RC bridge columns reinforced by carbon or stainless steel. The model was validated against recent lateral cyclic tests, where both overall hysteresis responses and localised mechanisms were replicated satisfactorily. The verified model was then used as the baseline of a Latin Hypercube simulation, where physics-based, age-dependent failure drift ratios of 175 bridge columns were evaluated. The outputs underline potential dangers of using as-built drift limit recommendations for seismic assessments of seemingly younger (e.g., aged 10~20 years) RC bridges. The recommended critical drift ratios were then summarised using machine learning models and encapsulated in a distributable Matlab App for quick future references.
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More information
Published date: 16 June 2025
Venue - Dates:
fib International Symposium on Concrete Structures: extend lifetime, limit impacts, 2025, , Antibes, France, 2025-06-16 - 2025-06-18
Identifiers
Local EPrints ID: 506899
URI: http://eprints.soton.ac.uk/id/eprint/506899
ISSN: 2617-4820
PURE UUID: ebcf5fb5-4f45-4df1-af6b-70dcc74fd78f
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Date deposited: 19 Nov 2025 17:50
Last modified: 26 Nov 2025 02:51
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Contributors
Author:
Ziliang Zhang
Author:
Hammed O. Aminulai
Editor:
Matthieu Briffaut
Editor:
Jean Michel Torrenti
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