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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...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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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. |
format | Online Article Text |
id | pubmed-6515226 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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