Computational Modelling Strategies for Nonlinear Response Prediction of Corroded Circular RC Bridge Piers

Mehdi M Kashani; Laura N Lowes; Adam J Crewe; Nicholas A Alexander

doi:10.1155/2016/2738265

Computational Modelling Strategies for Nonlinear Response Prediction of Corroded Circular RC Bridge Piers

Mehdi M Kashani, Laura N Lowes, Adam J Crewe, Nicholas A Alexander

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Abstract

A numerical model is presented that enables simulation of the nonlinear flexural response of corroded reinforced concrete (RC) components. The model employs a force-based nonlinear fibre beam-column element. A new phenomenological uniaxial material model for corroded reinforcing steel is used. This model accounts for the impact of corrosion on buckling strength, post-buckling behaviour and low-cycle fatigue degradation of vertical reinforcement under cyclic loading. The basic material model is validated through comparison of simulated and observed response for uncorroded RC columns. The model is used to explore the impact of corrosion on the inelastic response of corroded RC columns.

Original language	English
Article number	2738265
Number of pages	15
Journal	Advances in Materials Science and Engineering
Volume	2016
Early online date	19 Apr 2016
DOIs	https://doi.org/10.1155/2016/2738265
Publication status	Published - 14 Jun 2016

Keywords

Corrosion
RC bridge pier
Inelastic buckling
Reinforcing steel
Cyclic behaviour
Low-cycle fatigue
Fibre model

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10.1155/2016/2738265

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Earthquake and Large Structures (EQUALS) Laboratory
Williams, D. (Manager), Crewe, A. (Manager) & Sextos, A. (Manager)
School of Civil, Aerospace and Design Engineering
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title = "Computational Modelling Strategies for Nonlinear Response Prediction of Corroded Circular RC Bridge Piers",

abstract = "A numerical model is presented that enables simulation of the nonlinear flexural response of corroded reinforced concrete (RC) components. The model employs a force-based nonlinear fibre beam-column element. A new phenomenological uniaxial material model for corroded reinforcing steel is used. This model accounts for the impact of corrosion on buckling strength, post-buckling behaviour and low-cycle fatigue degradation of vertical reinforcement under cyclic loading. The basic material model is validated through comparison of simulated and observed response for uncorroded RC columns. The model is used to explore the impact of corrosion on the inelastic response of corroded RC columns.",

keywords = "Corrosion, RC bridge pier, Inelastic buckling, Reinforcing steel, Cyclic behaviour, Low-cycle fatigue, Fibre model",

author = "Kashani, {Mehdi M} and Lowes, {Laura N} and Crewe, {Adam J} and Alexander, {Nicholas A}",

year = "2016",

month = jun,

day = "14",

doi = "10.1155/2016/2738265",

language = "English",

volume = "2016",

journal = "Advances in Materials Science and Engineering",

issn = "1687-8434",

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T1 - Computational Modelling Strategies for Nonlinear Response Prediction of Corroded Circular RC Bridge Piers

AU - Kashani, Mehdi M

AU - Lowes, Laura N

AU - Crewe, Adam J

AU - Alexander, Nicholas A

PY - 2016/6/14

Y1 - 2016/6/14

N2 - A numerical model is presented that enables simulation of the nonlinear flexural response of corroded reinforced concrete (RC) components. The model employs a force-based nonlinear fibre beam-column element. A new phenomenological uniaxial material model for corroded reinforcing steel is used. This model accounts for the impact of corrosion on buckling strength, post-buckling behaviour and low-cycle fatigue degradation of vertical reinforcement under cyclic loading. The basic material model is validated through comparison of simulated and observed response for uncorroded RC columns. The model is used to explore the impact of corrosion on the inelastic response of corroded RC columns.

AB - A numerical model is presented that enables simulation of the nonlinear flexural response of corroded reinforced concrete (RC) components. The model employs a force-based nonlinear fibre beam-column element. A new phenomenological uniaxial material model for corroded reinforcing steel is used. This model accounts for the impact of corrosion on buckling strength, post-buckling behaviour and low-cycle fatigue degradation of vertical reinforcement under cyclic loading. The basic material model is validated through comparison of simulated and observed response for uncorroded RC columns. The model is used to explore the impact of corrosion on the inelastic response of corroded RC columns.

KW - Corrosion

KW - RC bridge pier

KW - Inelastic buckling

KW - Reinforcing steel

KW - Cyclic behaviour

KW - Low-cycle fatigue

KW - Fibre model

U2 - 10.1155/2016/2738265

DO - 10.1155/2016/2738265

M3 - Article (Academic Journal)

SN - 1687-8434

VL - 2016

JO - Advances in Materials Science and Engineering

JF - Advances in Materials Science and Engineering

M1 - 2738265

ER -

Computational Modelling Strategies for Nonlinear Response Prediction of Corroded Circular RC Bridge Piers

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