Nonlinear dynamic response of a multi-span integral bridge with corrosion damaged RC piers
Nonlinear dynamic response of a multi-span integral bridge with corrosion damaged RC piers
In this paper the impact of corrosion of reinforcing steel in reinforced concrete (RC) columns on the seismic fragility of a multi-span concrete integral bridge is explored. A new constitutive model for corroded reinforcing steel is used. This model simulates the buckling of longitudinal reinforcement under cyclic loading and the impact of corrosion on buckling strength. Cover concrete strength is adjusted to account for corrosion induced damage and core concrete strength and ductility are adjusted to account for corrosion induced damage to transverse reinforcement. This study evaluates the impact of chloride induced corrosion of the reinforced concrete columns on the seismic fragility of the bridge. Fragility curves are developed at a various time intervals over the lifetime of the bridge. The results of this study show that the bridge fragility increases significantly with corrosion
304-310
Kashani, Mohammad
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Crewe, Adam J.
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Alexander, Nicholas A.
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Choine, Mairead Ni
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Lowes, L. N.
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O'Connor, Alan
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Padgett, Jamie E
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16 November 2015
Kashani, Mohammad
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Crewe, Adam J.
e04910c2-1e89-4d59-b49b-af4e9e28639e
Alexander, Nicholas A.
544fc8c7-40a4-4e81-aaab-89e78f1a6fc9
Choine, Mairead Ni
652d4fb5-c123-4086-bb87-e21e4f4d07ab
Lowes, L. N.
0989aac6-3b51-446c-a7cc-02d7fc8e41a4
O'Connor, Alan
f3cb8b03-5c8a-4c66-8a6a-6ec566df4cf7
Padgett, Jamie E
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Kashani, Mohammad, Crewe, Adam J., Alexander, Nicholas A., Choine, Mairead Ni, Lowes, L. N., O'Connor, Alan and Padgett, Jamie E
(2015)
Nonlinear dynamic response of a multi-span integral bridge with corrosion damaged RC piers.
In Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014.
vol. 1,
CRC Press / Balkema.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
In this paper the impact of corrosion of reinforcing steel in reinforced concrete (RC) columns on the seismic fragility of a multi-span concrete integral bridge is explored. A new constitutive model for corroded reinforcing steel is used. This model simulates the buckling of longitudinal reinforcement under cyclic loading and the impact of corrosion on buckling strength. Cover concrete strength is adjusted to account for corrosion induced damage and core concrete strength and ductility are adjusted to account for corrosion induced damage to transverse reinforcement. This study evaluates the impact of chloride induced corrosion of the reinforced concrete columns on the seismic fragility of the bridge. Fragility curves are developed at a various time intervals over the lifetime of the bridge. The results of this study show that the bridge fragility increases significantly with corrosion
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Published date: 16 November 2015
Organisations:
Infrastructure Group
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Local EPrints ID: 406351
URI: http://eprints.soton.ac.uk/id/eprint/406351
PURE UUID: 6d6dcf2e-34d1-424b-801a-e0b1b88ee71e
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Date deposited: 10 Mar 2017 10:45
Last modified: 29 Nov 2022 02:50
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Contributors
Author:
Adam J. Crewe
Author:
Nicholas A. Alexander
Author:
Mairead Ni Choine
Author:
L. N. Lowes
Author:
Alan O'Connor
Author:
Jamie E Padgett
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