Recent advances in modelling nonlinear seismic performance of corrosion-damaged RC bridges
Recent advances in modelling nonlinear seismic performance of corrosion-damaged RC bridges
This keynote presentation explores advances in modelling the nonlinear seismic performance of corrosion-damaged reinforced concrete (RC) bridges, focusing on nonuniformly corroded circular RC piers. Experimental and numerical methods are used to assess how corrosion affects the dynamic properties and drift behaviour of RC columns. Tests on large-scale prototypes revealed that higher corrosion levels increased natural frequencies and reduced cyclic capacities, while damping ratios remained largely unchanged. Calibrated nonlinear finite element (FE) models simulated key failure modes and nonuniform, age-related corrosion. Findings highlight the need for updated seismic assessments for RC bridges.
238-245
fib. The International Federation for Structural Concrete
Kashani, Mohammad M.
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Zhang, Ziliang
1fca0696-ebe9-4ea3-913b-a7ae0888783b
2025
Kashani, Mohammad M.
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Zhang, Ziliang
1fca0696-ebe9-4ea3-913b-a7ae0888783b
Kashani, Mohammad M. and Zhang, Ziliang
(2025)
Recent advances in modelling nonlinear seismic performance of corrosion-damaged RC bridges.
Belletti, Beatrice, Coronelli, Dario and di Prisco, Marco
(eds.)
In Proceedings of the fib CACRCS 2025 - Capacity Assessment of Corroded Reinforced Concrete Structures from Research to Daily Engineering Evaluation.
fib. The International Federation for Structural Concrete.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
This keynote presentation explores advances in modelling the nonlinear seismic performance of corrosion-damaged reinforced concrete (RC) bridges, focusing on nonuniformly corroded circular RC piers. Experimental and numerical methods are used to assess how corrosion affects the dynamic properties and drift behaviour of RC columns. Tests on large-scale prototypes revealed that higher corrosion levels increased natural frequencies and reduced cyclic capacities, while damping ratios remained largely unchanged. Calibrated nonlinear finite element (FE) models simulated key failure modes and nonuniform, age-related corrosion. Findings highlight the need for updated seismic assessments for RC bridges.
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More information
Published date: 2025
Venue - Dates:
fib Conference on Capacity Assessment of Corroded Reinforced Concrete Structures: from Research to Daily Engineering Evaluation, CACRCS 2025, , Lecco, Italy, 2025-06-30 - 2025-07-03
Identifiers
Local EPrints ID: 506963
URI: http://eprints.soton.ac.uk/id/eprint/506963
ISSN: 2617-4820
PURE UUID: d316f901-2d60-41bd-9b4e-02bdc8d0c0dd
Catalogue record
Date deposited: 24 Nov 2025 17:40
Last modified: 25 Nov 2025 02:56
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Contributors
Author:
Ziliang Zhang
Editor:
Beatrice Belletti
Editor:
Dario Coronelli
Editor:
Marco di Prisco
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