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Author:

Ye, Yu-Yi (Ye, Yu-Yi.) | Yan, Zhuge (Yan, Zhuge.) | Smith, Scott T. (Smith, Scott T..) | Zeng, Jun-Jie (Zeng, Jun-Jie.) | Bai, Yu-Lei (Bai, Yu-Lei.)

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EI Scopus SCIE

Abstract:

Concrete structures reinforced with fiber-reinforced polymer (FRP) bars (referred to as FRP-RC structures) are becoming increasingly popular, whereas there is a lack of a robust full-range axial load-strain model for FRP-RC columns, which is fundamental for the design and advanced analysis of FRP-RC structures. To this end, a review and assessment of existing confined compressive concrete ultimate axial stress (or strain) models (including models for glass FRP (GFRP) spiral-confined concrete (GFSCC) and models for FRP partially confined concrete (FPCC)) against a newly established database are reported in this paper. The comparisons show that the models of FPCC are applicable to GFSCC. A new design-oriented full-range axial load-strain model is then proposed for GFRP-RC columns of circular cross-section by explicitly considering the behavior of three key components in FRP-RC columns, namely, confined concrete core, FRP longitudinal reinforcement and concrete cover. The novelty of the proposed model is that the constitutive models of the three components in FRP-RC columns can be considered in separation. The proposed model, which is able to capture the strain softening behavior properly, provides satisfactory predictions of the axial load-strain test curves of FRP-RC columns.

Keyword:

Axial load-strain behavior Reinforced concrete (RC) columns FRP spirals Confinement model Glass FRP (GFRP) Fiber-reinforced polymer (FRP) bars

Author Community:

  • [ 1 ] [Ye, Yu-Yi]Guangdong Univ Technol, Dept Civil & Transportat Engn, Guangzhou 510006, Peoples R China
  • [ 2 ] [Zeng, Jun-Jie]Guangdong Univ Technol, Dept Civil & Transportat Engn, Guangzhou 510006, Peoples R China
  • [ 3 ] [Yan, Zhuge]Univ South Australia, UniSA STEM, Adelaide, SA 5095, Australia
  • [ 4 ] [Smith, Scott T.]Univ Adelaide, Sch Civil Environm & Min Engn, Adelaide, SA 5005, Australia
  • [ 5 ] [Bai, Yu-Lei]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China

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Source :

JOURNAL OF BUILDING ENGINEERING

Year: 2022

Volume: 47

6 . 4

JCR@2022

6 . 4 0 0

JCR@2022

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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