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Author:

Lin, Siqi (Lin, Siqi.) | Zhao, Yan-Gang (Zhao, Yan-Gang.) | Lu, Zhao-Hui (Lu, Zhao-Hui.)

Indexed by:

EI Scopus SCIE

Abstract:

Previous studies suggested that the behaviors of confined concrete in concrete-filled steel tube (CFT) columns were dependent on their confining stress paths, which thus should be considered in order to well predict their behaviors. Several confining stress path dependent analytical models had been proposed, which, however, were all developed for fiber polymer (FRP) confined concretes. Although one of the existing models can also be applicable to CFT columns, it mainly focused on the specimens with normal strength concrete. Additionally, existing confining stress path dependent models may result in fluctuation issue of load-deflection curves for CFT specimens. This paper proposed a new confining stress path dependent analytical model that is applicable to normal, high and ultra-high strength concrete-filled steel tube columns. Experimental tests were collected to assess the performance of the proposed analytical model, and it was found that the proposed model performs quite well for normal, high and ultra-high strength concrete-filled steel tube columns and generally can avoid the fluctuation issue of load-deflection curves.

Keyword:

Analytical model Ultra-high strength concrete Confining stress path Concrete filled steel tube

Author Community:

  • [ 1 ] [Lin, Siqi]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Zhao, Yan-Gang]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Lu, Zhao-Hui]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Zhao, Yan-Gang]Kanagawa Univ, Dept Architecture & Bldg Engn, Yokohama, Kanagawa 2218686, Japan
  • [ 5 ] [Lu, Zhao-Hui]Cent South Univ, Sch Civil Engn, 22 Shaoshannan Rd, Changsha 410075, Peoples R China

Reprint Author's Address:

  • [Zhao, Yan-Gang]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China;;[Zhao, Yan-Gang]Kanagawa Univ, Dept Architecture & Bldg Engn, Yokohama, Kanagawa 2218686, Japan

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Source :

COMPOSITE STRUCTURES

ISSN: 0263-8223

Year: 2020

Volume: 242

6 . 3 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:169

Cited Count:

WoS CC Cited Count: 33

SCOPUS Cited Count: 33

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 10

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