Non-linear flexural behaviour of RC columns including bar buckling and fatigue degradation

Mohammad M. Kashani; Mohammad R. Salami; Katsuichiro Goda; Nicholas A. Alexander

doi:10.1680/jmacr.16.00495

Non-linear flexural behaviour of RC columns including bar buckling and fatigue degradation

Mohammad M. Kashani^*, Mohammad R. Salami, Katsuichiro Goda, Nicholas A. Alexander

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

An advanced fibre-based modelling technique is developed to characterise the non-linear flexural behaviour of rectangular reinforced-concrete (RC) columns by accounting for the influence of inelastic buckling and low-cycle fatigue degradation of vertical reinforcement. The proposed uniaxial material model of reinforcing steel is calibrated using 22 rectangular RC column tests. The influence of inelastic buckling of vertical reinforcement on the non-linear cyclic response of rectangular RC columns is investigated. The calibrated model is capable of accurately predicting the non-linear response of rectangular RC columns up to complete collapse by taking into account the additional failure modes of the RC columns.

Original language	English
Pages (from-to)	231-247
Number of pages	17
Journal	Magazine of Concrete Research
Volume	70
Issue number	5
DOIs	https://doi.org/10.1680/jmacr.16.00495
Publication status	Published - 1 Mar 2018
Externally published	Yes

Keywords

Fatigue
Finite element methods
Reinforcement

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science

Access to Document

10.1680/jmacr.16.00495

Cite this

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title = "Non-linear flexural behaviour of RC columns including bar buckling and fatigue degradation",

abstract = "An advanced fibre-based modelling technique is developed to characterise the non-linear flexural behaviour of rectangular reinforced-concrete (RC) columns by accounting for the influence of inelastic buckling and low-cycle fatigue degradation of vertical reinforcement. The proposed uniaxial material model of reinforcing steel is calibrated using 22 rectangular RC column tests. The influence of inelastic buckling of vertical reinforcement on the non-linear cyclic response of rectangular RC columns is investigated. The calibrated model is capable of accurately predicting the non-linear response of rectangular RC columns up to complete collapse by taking into account the additional failure modes of the RC columns.",

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AU - Kashani, Mohammad M.

AU - Salami, Mohammad R.

AU - Goda, Katsuichiro

AU - Alexander, Nicholas A.

PY - 2018/3/1

Y1 - 2018/3/1

N2 - An advanced fibre-based modelling technique is developed to characterise the non-linear flexural behaviour of rectangular reinforced-concrete (RC) columns by accounting for the influence of inelastic buckling and low-cycle fatigue degradation of vertical reinforcement. The proposed uniaxial material model of reinforcing steel is calibrated using 22 rectangular RC column tests. The influence of inelastic buckling of vertical reinforcement on the non-linear cyclic response of rectangular RC columns is investigated. The calibrated model is capable of accurately predicting the non-linear response of rectangular RC columns up to complete collapse by taking into account the additional failure modes of the RC columns.

AB - An advanced fibre-based modelling technique is developed to characterise the non-linear flexural behaviour of rectangular reinforced-concrete (RC) columns by accounting for the influence of inelastic buckling and low-cycle fatigue degradation of vertical reinforcement. The proposed uniaxial material model of reinforcing steel is calibrated using 22 rectangular RC column tests. The influence of inelastic buckling of vertical reinforcement on the non-linear cyclic response of rectangular RC columns is investigated. The calibrated model is capable of accurately predicting the non-linear response of rectangular RC columns up to complete collapse by taking into account the additional failure modes of the RC columns.

KW - Fatigue

KW - Finite element methods

KW - Reinforcement

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