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Compressive Behavior of Composite Concrete Columns with Encased FRP Confined Concrete Cores

A composite concrete column with encased fiber reinforced polymer (FRP) confined concrete cores (EFCCC) is proposed in this paper. The cross-sectional form of the EFCCC column is composed of several orderly arranged FRP confined concrete cores (FCCCs) surrounding a filled core concrete. This novel c...

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Detalles Bibliográficos
Autores principales: Wang, Xuxu, Qi, Yujun, Sun, Yunlou, Xie, Zhijin, Liu, Weiqing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6515226/
https://www.ncbi.nlm.nih.gov/pubmed/30991644
http://dx.doi.org/10.3390/s19081792
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author Wang, Xuxu
Qi, Yujun
Sun, Yunlou
Xie, Zhijin
Liu, Weiqing
author_facet Wang, Xuxu
Qi, Yujun
Sun, Yunlou
Xie, Zhijin
Liu, Weiqing
author_sort Wang, Xuxu
collection PubMed
description A composite concrete column with encased fiber reinforced polymer (FRP) confined concrete cores (EFCCC) is proposed in this paper. The cross-sectional form of the EFCCC column is composed of several orderly arranged FRP confined concrete cores (FCCCs) surrounding a filled core concrete. This novel composite column has several advantages, such as higher compressive capacity, stronger FRP confinement, and ductile response. The compressive experiment is employed to investigate the compressive behavior of the EFCCC column with deferent parameters, such as outside concrete and stirrups. Test results show that the main failure mode of the EFCCC column with and without an outside concrete or stirrups is tensile fracture of the glass fiber reinforced polymer (GFRP) tubes. Compared to a reinforced concrete (RC) column, the strength and ductility of the EFCCC column was obviously improved by 20% and 500%, respectively. A finite element model (FEM) based on the Drucker–Prager (D-P) was developed that can accurately predict the axial compression behavior of the composite column with FRP confined concrete core. The predicted results obtained by using this FEM have excellent agreement with the experimental results.
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spelling pubmed-65152262019-05-30 Compressive Behavior of Composite Concrete Columns with Encased FRP Confined Concrete Cores Wang, Xuxu Qi, Yujun Sun, Yunlou Xie, Zhijin Liu, Weiqing Sensors (Basel) Article A composite concrete column with encased fiber reinforced polymer (FRP) confined concrete cores (EFCCC) is proposed in this paper. The cross-sectional form of the EFCCC column is composed of several orderly arranged FRP confined concrete cores (FCCCs) surrounding a filled core concrete. This novel composite column has several advantages, such as higher compressive capacity, stronger FRP confinement, and ductile response. The compressive experiment is employed to investigate the compressive behavior of the EFCCC column with deferent parameters, such as outside concrete and stirrups. Test results show that the main failure mode of the EFCCC column with and without an outside concrete or stirrups is tensile fracture of the glass fiber reinforced polymer (GFRP) tubes. Compared to a reinforced concrete (RC) column, the strength and ductility of the EFCCC column was obviously improved by 20% and 500%, respectively. A finite element model (FEM) based on the Drucker–Prager (D-P) was developed that can accurately predict the axial compression behavior of the composite column with FRP confined concrete core. The predicted results obtained by using this FEM have excellent agreement with the experimental results. MDPI 2019-04-15 /pmc/articles/PMC6515226/ /pubmed/30991644 http://dx.doi.org/10.3390/s19081792 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Xuxu
Qi, Yujun
Sun, Yunlou
Xie, Zhijin
Liu, Weiqing
Compressive Behavior of Composite Concrete Columns with Encased FRP Confined Concrete Cores
title Compressive Behavior of Composite Concrete Columns with Encased FRP Confined Concrete Cores
title_full Compressive Behavior of Composite Concrete Columns with Encased FRP Confined Concrete Cores
title_fullStr Compressive Behavior of Composite Concrete Columns with Encased FRP Confined Concrete Cores
title_full_unstemmed Compressive Behavior of Composite Concrete Columns with Encased FRP Confined Concrete Cores
title_short Compressive Behavior of Composite Concrete Columns with Encased FRP Confined Concrete Cores
title_sort compressive behavior of composite concrete columns with encased frp confined concrete cores
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6515226/
https://www.ncbi.nlm.nih.gov/pubmed/30991644
http://dx.doi.org/10.3390/s19081792
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