Static Behavior of Circular Section CFRP Concrete-Filled Steel Tubes Under Compressive–Torsional Load

In order to study the compressive torsional behavior of concrete-filled CFRP steel tubes (CF-CFRP-STs), the static test of eight circular section CF-CFRP-ST compression torsional specimens was carried out. The characteristics of the torque–angle (T–θ) curve and shear stress shear–strain (τ–γ) curve,...

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Main Authors: Qing-li Wang, Jie Zhao, Kuan Peng
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Materials
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmats.2022.869786/full
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author Qing-li Wang
Jie Zhao
Kuan Peng
author_facet Qing-li Wang
Jie Zhao
Kuan Peng
author_sort Qing-li Wang
collection DOAJ
description In order to study the compressive torsional behavior of concrete-filled CFRP steel tubes (CF-CFRP-STs), the static test of eight circular section CF-CFRP-ST compression torsional specimens was carried out. The characteristics of the torque–angle (T–θ) curve and shear stress shear–strain (τ–γ) curve, failure mode, cooperative work between steel tubes and CFRP, and cross-section assumption were studied. The T–θ curve, τ–γ curve, and failure mode of the specimen are simulated by ABAQUS. Based on the above research, the stress distribution of each component material is analyzed. The effects of transverse CFRP layers, material strength, steel ratio, and axial compression ratio on the static performance of members are discussed. Based on the performance analysis, the bearing capacity equation of CF-CFRP-ST compression-torsional members is proposed.
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spelling doaj.art-d8920713b7494f3998fda9f62684ac7c2022-12-22T01:24:10ZengFrontiers Media S.A.Frontiers in Materials2296-80162022-07-01910.3389/fmats.2022.869786869786Static Behavior of Circular Section CFRP Concrete-Filled Steel Tubes Under Compressive–Torsional LoadQing-li Wang0Jie Zhao1Kuan Peng2School of Civil Engineering, University of Science and Technology Liaoning, Anshan, ChinaSchool of Civil Engineering, University of Science and Technology Liaoning, Anshan, ChinaSchool of Mechatronic Engineering, Southwest Petroleum University, Chengdu, ChinaIn order to study the compressive torsional behavior of concrete-filled CFRP steel tubes (CF-CFRP-STs), the static test of eight circular section CF-CFRP-ST compression torsional specimens was carried out. The characteristics of the torque–angle (T–θ) curve and shear stress shear–strain (τ–γ) curve, failure mode, cooperative work between steel tubes and CFRP, and cross-section assumption were studied. The T–θ curve, τ–γ curve, and failure mode of the specimen are simulated by ABAQUS. Based on the above research, the stress distribution of each component material is analyzed. The effects of transverse CFRP layers, material strength, steel ratio, and axial compression ratio on the static performance of members are discussed. Based on the performance analysis, the bearing capacity equation of CF-CFRP-ST compression-torsional members is proposed.https://www.frontiersin.org/articles/10.3389/fmats.2022.869786/fullcircular concrete-filled CFRP steel tubeexperimental studyfinite element studybearing capacity equationparameter analysis
spellingShingle Qing-li Wang
Jie Zhao
Kuan Peng
Static Behavior of Circular Section CFRP Concrete-Filled Steel Tubes Under Compressive–Torsional Load
Frontiers in Materials
circular concrete-filled CFRP steel tube
experimental study
finite element study
bearing capacity equation
parameter analysis
title Static Behavior of Circular Section CFRP Concrete-Filled Steel Tubes Under Compressive–Torsional Load
title_full Static Behavior of Circular Section CFRP Concrete-Filled Steel Tubes Under Compressive–Torsional Load
title_fullStr Static Behavior of Circular Section CFRP Concrete-Filled Steel Tubes Under Compressive–Torsional Load
title_full_unstemmed Static Behavior of Circular Section CFRP Concrete-Filled Steel Tubes Under Compressive–Torsional Load
title_short Static Behavior of Circular Section CFRP Concrete-Filled Steel Tubes Under Compressive–Torsional Load
title_sort static behavior of circular section cfrp concrete filled steel tubes under compressive torsional load
topic circular concrete-filled CFRP steel tube
experimental study
finite element study
bearing capacity equation
parameter analysis
url https://www.frontiersin.org/articles/10.3389/fmats.2022.869786/full
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AT kuanpeng staticbehaviorofcircularsectioncfrpconcretefilledsteeltubesundercompressivetorsionalload