Nonlinear behaviour of corrosion damaged low-strength short reinforced concrete columns under compressive axial cyclic loading
Nonlinear behaviour of corrosion damaged low-strength short reinforced concrete columns under compressive axial cyclic loading
New codes have recently introduced seismic detailing for new structures. However, there are still older reinforced concrete (RC) structures without proper ductile detailing for earthquake resistance in seismic-prone areas. These structures are further impacted by the corrosion of their embedded reinforcing bars, which further reduces the strength and ductility under axial cyclic loading. This paper summarises the results of an experimental investigation performed on low-strength short RC columns, with different confinement configurations, subject to varying degrees of corrosion to investigate their structural responses to axial cyclic loading. The experiment was conducted on 30 short RC columns (square and circular) with three levels of confinement and steel reinforcement corrosion loss ranging from 0% to ∼ 30% subjected to cyclic compressive loading. The test results show that corrosion and inadequate confinements have a significant negative impact on the structural responses of corroded columns.
confinement, corrosion, cyclic loading, ductility, RC column, seismic detailing, Cyclic loading, Confinement, Corrosion, Ductility, Seismic detailing
Aminulai, Hammed Olanrewaju
2f39bbad-cf80-4fe1-86f7-eed15def6242
Robinson, Andrew
42a3e980-2bd6-4d1c-8a36-000931e90ba2
Ferguson, Neil
8cb67e30-48e2-491c-9390-d444fa786ac8
Kashani, Mohammad Mehdi
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
15 August 2023
Aminulai, Hammed Olanrewaju
2f39bbad-cf80-4fe1-86f7-eed15def6242
Robinson, Andrew
42a3e980-2bd6-4d1c-8a36-000931e90ba2
Ferguson, Neil
8cb67e30-48e2-491c-9390-d444fa786ac8
Kashani, Mohammad Mehdi
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Aminulai, Hammed Olanrewaju, Robinson, Andrew, Ferguson, Neil and Kashani, Mohammad Mehdi
(2023)
Nonlinear behaviour of corrosion damaged low-strength short reinforced concrete columns under compressive axial cyclic loading.
Engineering Structures, 289, [116245].
(doi:10.1016/j.engstruct.2023.116245).
Abstract
New codes have recently introduced seismic detailing for new structures. However, there are still older reinforced concrete (RC) structures without proper ductile detailing for earthquake resistance in seismic-prone areas. These structures are further impacted by the corrosion of their embedded reinforcing bars, which further reduces the strength and ductility under axial cyclic loading. This paper summarises the results of an experimental investigation performed on low-strength short RC columns, with different confinement configurations, subject to varying degrees of corrosion to investigate their structural responses to axial cyclic loading. The experiment was conducted on 30 short RC columns (square and circular) with three levels of confinement and steel reinforcement corrosion loss ranging from 0% to ∼ 30% subjected to cyclic compressive loading. The test results show that corrosion and inadequate confinements have a significant negative impact on the structural responses of corroded columns.
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Accepted/In Press date: 28 April 2023
e-pub ahead of print date: 14 May 2023
Published date: 15 August 2023
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© 2023 The Author(s)
Keywords:
confinement, corrosion, cyclic loading, ductility, RC column, seismic detailing, Cyclic loading, Confinement, Corrosion, Ductility, Seismic detailing
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Local EPrints ID: 477394
URI: http://eprints.soton.ac.uk/id/eprint/477394
ISSN: 0141-0296
PURE UUID: 99c41ad9-bd0f-4ad5-a386-97203723cd4d
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Date deposited: 06 Jun 2023 16:31
Last modified: 23 Nov 2024 03:09
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Author:
Hammed Olanrewaju Aminulai
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