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作者:

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

收录:

SCIE

摘要:

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.

关键词:

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

作者机构:

  • [ 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

通讯作者信息:

  • 陈适才

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

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来源 :

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH

ISSN: 0143-974X

年份: 2021

卷: 186

4 . 1 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:9

被引次数:

WoS核心集被引频次: 4

SCOPUS被引频次: 8

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 2

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