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author:

Tao, Zhong (Tao, Zhong.) [1] | Wang, Zhi-Bin (Wang, Zhi-Bin.) [2] (Scholars:王志滨) | Yu, Qing (Yu, Qing.) [3]

Indexed by:

EI Scopus SCIE

Abstract:

Due to the passive confinement provided by the steel jacket for the concrete core, the behaviour of the concrete in a concrete-filled steel tubular (CFST) column is always very challenging to be accurately modelled. Although considerable efforts have been made in the past to develop finite element (FE) models for CFST columns, these models may not be suitable to be used in some cases, especially when considering the fast development and utilisation of high-strength concrete and/or thin-walled steel tubes in recent times. A wide range of experimental data is collected in this paper and used to develop refined FE models to simulate CFST stub columns under axial compression. The simulation is based on the concrete damaged plasticity material model, where a new strain hardening/softening function is developed for confined concrete and new models are introduced for a few material parameters used in the concrete model. The prediction accuracy from the current model is compared with that of an existing FE model, which has been well established and widely used by many researchers. The comparison indicates that the new model is more versatile and accurate to be used in modelling CFST stub columns, even when high-strength concrete and/or thin-walled tubes are used. (C) 2013 Elsevier Ltd. All rights reserved.

Keyword:

Axial compression Concrete-filled steel tubes Finite element analysis Passive confinement Stress-strain model Stub columns

Community:

  • [ 1 ] [Tao, Zhong]Univ Western Sydney, Inst Infrastruct Engn, Penrith, NSW 2751, Australia
  • [ 2 ] [Wang, Zhi-Bin]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Fujian Province, Peoples R China
  • [ 3 ] [Wang, Zhi-Bin]Tsinghua Univ, Dept Construct Management, Beijing 100084, Peoples R China
  • [ 4 ] [Yu, Qing]Tsinghua Univ, Dept Construct Management, Beijing 100084, Peoples R China

Reprint 's Address:

  • [Tao, Zhong]Univ Western Sydney, Inst Infrastruct Engn, Penrith, NSW 2751, Australia

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Source :

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH

ISSN: 0143-974X

Year: 2013

Volume: 89

Page: 121-131

1 . 3 7

JCR@2013

4 . 0 0 0

JCR@2023

ESI Discipline: ENGINEERING;

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 892

SCOPUS Cited Count: 893

ESI Highly Cited Papers on the List: 35 Unfold All

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WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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