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Author:

Ci, Junchang (Ci, Junchang.) | Ahmed, Mizan (Ahmed, Mizan.) | Jia, Hong (Jia, Hong.) | Chen, Shicai (Chen, Shicai.) (Scholars:陈适才) | Zhou, Daxing (Zhou, Daxing.) | Hou, Liqun (Hou, Liqun.)

Indexed by:

EI Scopus SCIE

Abstract:

Circular concrete-filled double steel tubular (CFDST) column is a high-performance composite column that has significant potential to be used in the construction of high-rise composite structures. This paper presents experimental and strength computational investigations on CFDST short columns that are subjected to eccentric compression load. A total of sixteen CFDST stub columns, two concrete-filled steel tubular (CFST) columns, and two double-skin concrete-filled steel tubular (DCFST) columns were tested to investigate their structural performance. The test behavior of the CFDST column loaded eccentrically is discussed and compared against its CFST and DCFST counterparts. The test results show that the CFDST column has improved strength and ductility under eccentric loading when compared with other composite columns. The strengths of the CFDST stub columns in this study together with the test strengths from the literature were used to assess the strength predictions by Eurocode 4 and AISC 360-16. It was found that the current predictions generally underestimate or overestimate the strengths. A new reduction factor for predicting the ultimate strengths of CFDST short columns under eccentric compression is proposed based on the test results. By adopting the newly proposed reduction factor and design method, the design predictions are found to be improved that provide reasonable estimations for circular CFDST columns loaded eccentrically.

Keyword:

Composite columns Eccentric compression Concrete-filled double steel tubes Ultimate strength Stub columns

Author Community:

  • [ 1 ] [Ci, Junchang]Beijing Univ Technol, Dept Architecture & Civil Engn, Beijing, Peoples R China
  • [ 2 ] [Chen, Shicai]Beijing Univ Technol, Dept Architecture & Civil Engn, Beijing, Peoples R China
  • [ 3 ] [Ahmed, Mizan]Univ Wollongong, Sch Civil Min & Environm Engn, Wollongong, NSW 2522, Australia
  • [ 4 ] [Ahmed, Mizan]Monash Univ, Dept Architecture, Clayton, Vic, Australia
  • [ 5 ] [Jia, Hong]China Railway Urban Construct Grp Co Ltd, Beijing, Peoples R China
  • [ 6 ] [Zhou, Daxing]CRCC Dev Grp Co Ltd, Beijing, Peoples R China
  • [ 7 ] [Hou, Liqun]CRCC Dev Grp Co Ltd, Beijing, Peoples R China

Reprint Author's Address:

  • 陈适才

    [Chen, Shicai]Beijing Univ Technol, Dept Architecture & Civil Engn, Beijing, Peoples R China

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Source :

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH

ISSN: 0143-974X

Year: 2021

Volume: 186

4 . 1 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:87

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 17

SCOPUS Cited Count: 21

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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