Size effect on inelastic buckling behaviour of accelerated pitted corroded bars in porous media
Size effect on inelastic buckling behaviour of accelerated pitted corroded bars in porous media
A total of 110 inelastic buckling tests on corroded and uncorroded reinforcing bars with various bar diameters are conducted. Through regression analyses of experimental data the combined effect of nonuniform pitting corrosion and bar diameter (size effect) on buckling and post-yield buckling response of corroded and uncorroded bars are investigated. The experimental result shows that bar diameter has a minor influence on post-yield buckling response of uncorroded bars. However, it is found that bar diameter has a more significant
impact on buckling capacity of corroded bars. Finally, the experimental data of tested corroded bars in this research are used to calibrate and update a new uniaxial material model of corroded bars to account for size effect. The proposed updated model simulates the inelastic buckling and post-buckling behaviour of corroded bars accounting for size effect. This model is implemented in an open source finite element code and is readily available to
the community for nonlinear analysis of corroded reinforced concrete structures
Kashani, Mohammad
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
July 2017
Kashani, Mohammad
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Kashani, Mohammad
(2017)
Size effect on inelastic buckling behaviour of accelerated pitted corroded bars in porous media.
Journal of Materials in Civil Engineering, 29 (7).
(doi:10.1061/(ASCE)MT.1943-5533.0001853).
Abstract
A total of 110 inelastic buckling tests on corroded and uncorroded reinforcing bars with various bar diameters are conducted. Through regression analyses of experimental data the combined effect of nonuniform pitting corrosion and bar diameter (size effect) on buckling and post-yield buckling response of corroded and uncorroded bars are investigated. The experimental result shows that bar diameter has a minor influence on post-yield buckling response of uncorroded bars. However, it is found that bar diameter has a more significant
impact on buckling capacity of corroded bars. Finally, the experimental data of tested corroded bars in this research are used to calibrate and update a new uniaxial material model of corroded bars to account for size effect. The proposed updated model simulates the inelastic buckling and post-buckling behaviour of corroded bars accounting for size effect. This model is implemented in an open source finite element code and is readily available to
the community for nonlinear analysis of corroded reinforced concrete structures
Text
Kashani_AcceptedManuscript
- Accepted Manuscript
More information
Accepted/In Press date: 11 October 2016
e-pub ahead of print date: 20 March 2017
Published date: July 2017
Organisations:
Infrastructure Group
Identifiers
Local EPrints ID: 410411
URI: http://eprints.soton.ac.uk/id/eprint/410411
ISSN: 0899-1561
PURE UUID: aceebf15-0717-4fcc-b535-3efb703b116a
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Date deposited: 07 Jun 2017 16:31
Last modified: 16 Mar 2024 04:29
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