Experimental Study on Axial Compressive Behavior of Gangue Aggregate Concrete Filled FRP and Thin-Walled Steel Double Tubular Columns

In the present paper, the monotonic axial compression test of gangue aggregate concrete filled Fiber reinforced polymer (FRP) and thin-walled steel double tubular columns (DTCC) was carried out, and the gangue aggregate concrete filled FRP tubular columns (CFFT) were designed as a comparison. The ma...

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Autores principales:	Jian Wang, Junwu Xia, Hongfei Chang, Youmin Han, Linli Yu, Li Jiang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	gangue aggregate concrete thin-walled steel tube DTCC bi-directional stress monotonic axial compression Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/a2f19e522a6b49328e23129284121524
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spelling	oai:doaj.org-article:a2f19e522a6b49328e231292841215242021-11-25T17:16:53ZExperimental Study on Axial Compressive Behavior of Gangue Aggregate Concrete Filled FRP and Thin-Walled Steel Double Tubular Columns10.3390/coatings111114042079-6412https://doaj.org/article/a2f19e522a6b49328e231292841215242021-11-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1404https://doaj.org/toc/2079-6412In the present paper, the monotonic axial compression test of gangue aggregate concrete filled Fiber reinforced polymer (FRP) and thin-walled steel double tubular columns (DTCC) was carried out, and the gangue aggregate concrete filled FRP tubular columns (CFFT) were designed as a comparison. The main experimental factors were the confinement level of the FRP jacket, the relative diameter ratio (the ratio of the outer diameter of the steel tube to the inner diameter of the FRP jacket), and the different strengths of gangue aggregate concrete. The test results show that the bearing capacity and ductility of gangue aggregate concrete in CFFT were significantly improved. As the local buckling of thin-walled steel tube was effectively inhibited, the load bearing capacity of DTCC was further improved compared with CFFT, but the change of dilation behavior and ductility was insignificant. By analyzing the bi-directional stress state of the steel tube, the confinement level of the external FRP jacket was the most sensitive factor affecting the hoop stress of the steel tube, and the axial stress was obviously weakened under the bi-directional stress state. In addition, with the increase of steel tube diameter, the confinement effect of steel tube in DTCC became more obvious.Jian WangJunwu XiaHongfei ChangYoumin HanLinli YuLi JiangMDPI AGarticlegangue aggregate concretethin-walled steel tubeDTCCbi-directional stressmonotonic axial compressionEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1404, p 1404 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	gangue aggregate concrete thin-walled steel tube DTCC bi-directional stress monotonic axial compression Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	gangue aggregate concrete thin-walled steel tube DTCC bi-directional stress monotonic axial compression Engineering (General). Civil engineering (General) TA1-2040 Jian Wang Junwu Xia Hongfei Chang Youmin Han Linli Yu Li Jiang Experimental Study on Axial Compressive Behavior of Gangue Aggregate Concrete Filled FRP and Thin-Walled Steel Double Tubular Columns
description	In the present paper, the monotonic axial compression test of gangue aggregate concrete filled Fiber reinforced polymer (FRP) and thin-walled steel double tubular columns (DTCC) was carried out, and the gangue aggregate concrete filled FRP tubular columns (CFFT) were designed as a comparison. The main experimental factors were the confinement level of the FRP jacket, the relative diameter ratio (the ratio of the outer diameter of the steel tube to the inner diameter of the FRP jacket), and the different strengths of gangue aggregate concrete. The test results show that the bearing capacity and ductility of gangue aggregate concrete in CFFT were significantly improved. As the local buckling of thin-walled steel tube was effectively inhibited, the load bearing capacity of DTCC was further improved compared with CFFT, but the change of dilation behavior and ductility was insignificant. By analyzing the bi-directional stress state of the steel tube, the confinement level of the external FRP jacket was the most sensitive factor affecting the hoop stress of the steel tube, and the axial stress was obviously weakened under the bi-directional stress state. In addition, with the increase of steel tube diameter, the confinement effect of steel tube in DTCC became more obvious.
format	article
author	Jian Wang Junwu Xia Hongfei Chang Youmin Han Linli Yu Li Jiang
author_facet	Jian Wang Junwu Xia Hongfei Chang Youmin Han Linli Yu Li Jiang
author_sort	Jian Wang
title	Experimental Study on Axial Compressive Behavior of Gangue Aggregate Concrete Filled FRP and Thin-Walled Steel Double Tubular Columns
title_short	Experimental Study on Axial Compressive Behavior of Gangue Aggregate Concrete Filled FRP and Thin-Walled Steel Double Tubular Columns
title_full	Experimental Study on Axial Compressive Behavior of Gangue Aggregate Concrete Filled FRP and Thin-Walled Steel Double Tubular Columns
title_fullStr	Experimental Study on Axial Compressive Behavior of Gangue Aggregate Concrete Filled FRP and Thin-Walled Steel Double Tubular Columns
title_full_unstemmed	Experimental Study on Axial Compressive Behavior of Gangue Aggregate Concrete Filled FRP and Thin-Walled Steel Double Tubular Columns
title_sort	experimental study on axial compressive behavior of gangue aggregate concrete filled frp and thin-walled steel double tubular columns
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a2f19e522a6b49328e23129284121524
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_version_	1718412549691539456

Experimental Study on Axial Compressive Behavior of Gangue Aggregate Concrete Filled FRP and Thin-Walled Steel Double Tubular Columns

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