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[期刊论文]

Eccentric compressive performances of circular steel-reinforced concrete-filled stainless steel tubular column

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author:

Wang, Z.-B. (Wang, Z.-B..) [1] (Scholars:王志滨) | Zhang, B.-H. (Zhang, B.-H..) [2] | Tong, J.-D. (Tong, J.-D..) [3] | Unfold

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Scopus

Abstract:

Steel-reinforced concrete filled stainless steel tube (SRCFSST) columns are predicted to offer excellent durability, load bearing capacity, ductility, fire resistance, impact resistance, and seismic performance. Therefore, eccentric compressive tests of 18 circular SRCFSST columns were carried out to investigate the effects of the slenderness ratio, load eccentricity, and embedment of carbon-profiled steel (CPS) on circular SRCFSST columns. The ultimate strength and ultimate deflection of the composite columns were improved significantly after the CPS was embedded. A finite element (FE) model was established and the FE analysis indicated that the CPS was proved to be an effective means of constraining concrete. Based on the FE parametric analysis, it was shown that the stability coefficient decreased with increasing concrete strength, proof strength of stainless steel, and CPS yield strength, but increased with increasing rotation radius-diameter ratio. The greater the concrete strength, the more similar the N∼M interaction curves of the SRCFSST columns and reinforced concrete columns. The higher the CPS yield strength, stainless-steel ratio, slenderness ratio, carbon steel ratio, or proof strength of stainless steel, the more similar the interaction curves of the SRCFSST columns and profiled steel columns. Finally, the simplified model was refined to forecast the carrying capability of a circular SRCFSST specimen under the eccentric compression. © 2024 Elsevier Ltd

Keyword:

Carbon-profiled steel Circular steel-reinforced concrete-filled stainless steel tubular Ductility Eccentric compressive test Finite element Simplified model

Community:

  • [ 1 ] [Wang Z.-B.]College of Civil Engineering, Fuzhou University, Fujian Province, Fuzhou, 350108, China
  • [ 2 ] [Zhang B.-H.]College of Civil Engineering, Fuzhou University, Fujian Province, Fuzhou, 350108, China
  • [ 3 ] [Tong J.-D.]College of Civil Engineering, Fuzhou University, Fujian Province, Fuzhou, 350108, China
  • [ 4 ] [Chen Z.]College of Civil Engineering, Fuzhou University, Fujian Province, Fuzhou, 350108, China
  • [ 5 ] [Han W.-X.]College of Civil Engineering, Fuzhou University, Fujian Province, Fuzhou, 350108, China

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Source :

Engineering Structures

ISSN: 0141-0296

Year: 2024

Volume: 310

5 . 6 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 3

30 Days PV: 2

Online/Total:25/10152003
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