Influences of Slenderness and Eccentricity on the Mechanical Properties of Concrete-Filled GFRP Tube Columns

The existence of either eccentricity or slenderness has a significant effect on the mechanical properties of a structure or member. These properties can change the working mechanism, failure mode, and bearing capacity of the structure or member. A concrete-filled, glass fibre-reinforced, polymer tub...

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Main Authors: Hongbo Guan, Yifei Xia, Jinli Wang, Arsene Hugo Mbonyintege
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/13/17/2968
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author Hongbo Guan
Yifei Xia
Jinli Wang
Arsene Hugo Mbonyintege
author_facet Hongbo Guan
Yifei Xia
Jinli Wang
Arsene Hugo Mbonyintege
author_sort Hongbo Guan
collection DOAJ
description The existence of either eccentricity or slenderness has a significant effect on the mechanical properties of a structure or member. These properties can change the working mechanism, failure mode, and bearing capacity of the structure or member. A concrete-filled, glass fibre-reinforced, polymer tube composite column has the same problem. We carried out experiments on the influences of eccentricity and slenderness on the mechanical properties of concrete-filled, glass fibre-reinforced, polymer tube composite columns. The experimentally recorded stress–strain relationships are presented graphically, and the ultimate axial stresses and strains and the FRP tube hoop strains at rupture were tabulated. The results indicate that the influences of slenderness and eccentricity on the composite columns were significant with regard to the axial strain, hoop strain, ultimate bearing capacity, lateral displacement, and failure mode. Based on the existing research literature and the results reported in this paper, the bearing capacity formula of a composite slender column under an eccentric load was established. The theoretical results were in good agreement with the experimental results.
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spelling doaj.art-37d4081f370e49d1b7b2f573b0c429942023-11-22T11:06:05ZengMDPI AGPolymers2073-43602021-08-011317296810.3390/polym13172968Influences of Slenderness and Eccentricity on the Mechanical Properties of Concrete-Filled GFRP Tube ColumnsHongbo Guan0Yifei Xia1Jinli Wang2Arsene Hugo Mbonyintege3School of Civil Engineering, Liaoning Technical University, Fuxin 123000, ChinaSchool of Civil Engineering, Liaoning Technical University, Fuxin 123000, ChinaSchool of Civil Engineering, Liaoning Technical University, Fuxin 123000, ChinaSchool of Civil Engineering, Liaoning Technical University, Fuxin 123000, ChinaThe existence of either eccentricity or slenderness has a significant effect on the mechanical properties of a structure or member. These properties can change the working mechanism, failure mode, and bearing capacity of the structure or member. A concrete-filled, glass fibre-reinforced, polymer tube composite column has the same problem. We carried out experiments on the influences of eccentricity and slenderness on the mechanical properties of concrete-filled, glass fibre-reinforced, polymer tube composite columns. The experimentally recorded stress–strain relationships are presented graphically, and the ultimate axial stresses and strains and the FRP tube hoop strains at rupture were tabulated. The results indicate that the influences of slenderness and eccentricity on the composite columns were significant with regard to the axial strain, hoop strain, ultimate bearing capacity, lateral displacement, and failure mode. Based on the existing research literature and the results reported in this paper, the bearing capacity formula of a composite slender column under an eccentric load was established. The theoretical results were in good agreement with the experimental results.https://www.mdpi.com/2073-4360/13/17/2968GFRP tubeconfined concreteeccentricityslenderness ratio
spellingShingle Hongbo Guan
Yifei Xia
Jinli Wang
Arsene Hugo Mbonyintege
Influences of Slenderness and Eccentricity on the Mechanical Properties of Concrete-Filled GFRP Tube Columns
Polymers
GFRP tube
confined concrete
eccentricity
slenderness ratio
title Influences of Slenderness and Eccentricity on the Mechanical Properties of Concrete-Filled GFRP Tube Columns
title_full Influences of Slenderness and Eccentricity on the Mechanical Properties of Concrete-Filled GFRP Tube Columns
title_fullStr Influences of Slenderness and Eccentricity on the Mechanical Properties of Concrete-Filled GFRP Tube Columns
title_full_unstemmed Influences of Slenderness and Eccentricity on the Mechanical Properties of Concrete-Filled GFRP Tube Columns
title_short Influences of Slenderness and Eccentricity on the Mechanical Properties of Concrete-Filled GFRP Tube Columns
title_sort influences of slenderness and eccentricity on the mechanical properties of concrete filled gfrp tube columns
topic GFRP tube
confined concrete
eccentricity
slenderness ratio
url https://www.mdpi.com/2073-4360/13/17/2968
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AT jinliwang influencesofslendernessandeccentricityonthemechanicalpropertiesofconcretefilledgfrptubecolumns
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