Seismic Behavior of Steel-Fiber-Reinforced High-Strength Concrete Shear Wall with CFST Columns: Experimental Investigation

To improve the seismic behavior of shear walls, a new composite shear wall composed of a steel-fiber-reinforced high-strength concrete (SFRHC) web and two square concrete-filled steel tube (CFST) columns, namely a steel-fiber-reinforced concrete shear wall with CFST columns, is proposed in this pape...

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Autores principales:	Ke Shi, Mengyue Zhang, Pengfei Li, Ru Xue, Peibo You, Tao Zhang, Baoyu Cui
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	composite shear wall steel-fiber-reinforced high-strength concrete square concrete-filled steel tubes seismic behavior load-bearing capacity Chemicals: Manufacture, use, etc. TP200-248 Textile bleaching, dyeing, printing, etc. TP890-933 Biology (General) QH301-705.5 Physics QC1-999
Acceso en línea:	https://doaj.org/article/2d9d08f6f56d4f67bdef10ce4fe95e6e
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spelling	oai:doaj.org-article:2d9d08f6f56d4f67bdef10ce4fe95e6e2021-11-25T17:31:20ZSeismic Behavior of Steel-Fiber-Reinforced High-Strength Concrete Shear Wall with CFST Columns: Experimental Investigation10.3390/fib91100752079-6439https://doaj.org/article/2d9d08f6f56d4f67bdef10ce4fe95e6e2021-11-01T00:00:00Zhttps://www.mdpi.com/2079-6439/9/11/75https://doaj.org/toc/2079-6439To improve the seismic behavior of shear walls, a new composite shear wall composed of a steel-fiber-reinforced high-strength concrete (SFRHC) web and two square concrete-filled steel tube (CFST) columns, namely a steel-fiber-reinforced concrete shear wall with CFST columns, is proposed in this paper. Therefore, the main purpose of this paper is to present an experimental investigation of the seismic behavior of the SFRHC shear wall with CFST columns. Pseudo-static tests were carried out on seven composite shear walls, and the seismic performance of the shear walls was studied and quantified in terms of the aspects of energy consumption, ductility and stiffness degradation. Furthermore, the experimental results indicated that adding steel fiber can effectively restrain the crack propagation of composite shear walls and further help to improve the ductility and energy dissipation capacity of composite shear walls and delay the degradation of their lateral stiffness and force. Moreover, the seismic behavior of the SFRHC shear wall with CFST columns was obviously superior to that of the conventionally reinforced shear wall, in terms of load-bearing capacity, ductility, stiffness and energy dissipation capacity, because of the confinement effect of the CFST columns on the web. Finally, the preliminary study demonstrated that the composite shear wall has good potential to be used in regions with high seismic risk.Ke ShiMengyue ZhangPengfei LiRu XuePeibo YouTao ZhangBaoyu CuiMDPI AGarticlecomposite shear wallsteel-fiber-reinforced high-strength concretesquare concrete-filled steel tubesseismic behaviorload-bearing capacityChemicals: Manufacture, use, etc.TP200-248Textile bleaching, dyeing, printing, etc.TP890-933Biology (General)QH301-705.5PhysicsQC1-999ENFibers, Vol 9, Iss 75, p 75 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	composite shear wall steel-fiber-reinforced high-strength concrete square concrete-filled steel tubes seismic behavior load-bearing capacity Chemicals: Manufacture, use, etc. TP200-248 Textile bleaching, dyeing, printing, etc. TP890-933 Biology (General) QH301-705.5 Physics QC1-999
spellingShingle	composite shear wall steel-fiber-reinforced high-strength concrete square concrete-filled steel tubes seismic behavior load-bearing capacity Chemicals: Manufacture, use, etc. TP200-248 Textile bleaching, dyeing, printing, etc. TP890-933 Biology (General) QH301-705.5 Physics QC1-999 Ke Shi Mengyue Zhang Pengfei Li Ru Xue Peibo You Tao Zhang Baoyu Cui Seismic Behavior of Steel-Fiber-Reinforced High-Strength Concrete Shear Wall with CFST Columns: Experimental Investigation
description	To improve the seismic behavior of shear walls, a new composite shear wall composed of a steel-fiber-reinforced high-strength concrete (SFRHC) web and two square concrete-filled steel tube (CFST) columns, namely a steel-fiber-reinforced concrete shear wall with CFST columns, is proposed in this paper. Therefore, the main purpose of this paper is to present an experimental investigation of the seismic behavior of the SFRHC shear wall with CFST columns. Pseudo-static tests were carried out on seven composite shear walls, and the seismic performance of the shear walls was studied and quantified in terms of the aspects of energy consumption, ductility and stiffness degradation. Furthermore, the experimental results indicated that adding steel fiber can effectively restrain the crack propagation of composite shear walls and further help to improve the ductility and energy dissipation capacity of composite shear walls and delay the degradation of their lateral stiffness and force. Moreover, the seismic behavior of the SFRHC shear wall with CFST columns was obviously superior to that of the conventionally reinforced shear wall, in terms of load-bearing capacity, ductility, stiffness and energy dissipation capacity, because of the confinement effect of the CFST columns on the web. Finally, the preliminary study demonstrated that the composite shear wall has good potential to be used in regions with high seismic risk.
format	article
author	Ke Shi Mengyue Zhang Pengfei Li Ru Xue Peibo You Tao Zhang Baoyu Cui
author_facet	Ke Shi Mengyue Zhang Pengfei Li Ru Xue Peibo You Tao Zhang Baoyu Cui
author_sort	Ke Shi
title	Seismic Behavior of Steel-Fiber-Reinforced High-Strength Concrete Shear Wall with CFST Columns: Experimental Investigation
title_short	Seismic Behavior of Steel-Fiber-Reinforced High-Strength Concrete Shear Wall with CFST Columns: Experimental Investigation
title_full	Seismic Behavior of Steel-Fiber-Reinforced High-Strength Concrete Shear Wall with CFST Columns: Experimental Investigation
title_fullStr	Seismic Behavior of Steel-Fiber-Reinforced High-Strength Concrete Shear Wall with CFST Columns: Experimental Investigation
title_full_unstemmed	Seismic Behavior of Steel-Fiber-Reinforced High-Strength Concrete Shear Wall with CFST Columns: Experimental Investigation
title_sort	seismic behavior of steel-fiber-reinforced high-strength concrete shear wall with cfst columns: experimental investigation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/2d9d08f6f56d4f67bdef10ce4fe95e6e
work_keys_str_mv	AT keshi seismicbehaviorofsteelfiberreinforcedhighstrengthconcreteshearwallwithcfstcolumnsexperimentalinvestigation AT mengyuezhang seismicbehaviorofsteelfiberreinforcedhighstrengthconcreteshearwallwithcfstcolumnsexperimentalinvestigation AT pengfeili seismicbehaviorofsteelfiberreinforcedhighstrengthconcreteshearwallwithcfstcolumnsexperimentalinvestigation AT ruxue seismicbehaviorofsteelfiberreinforcedhighstrengthconcreteshearwallwithcfstcolumnsexperimentalinvestigation AT peiboyou seismicbehaviorofsteelfiberreinforcedhighstrengthconcreteshearwallwithcfstcolumnsexperimentalinvestigation AT taozhang seismicbehaviorofsteelfiberreinforcedhighstrengthconcreteshearwallwithcfstcolumnsexperimentalinvestigation AT baoyucui seismicbehaviorofsteelfiberreinforcedhighstrengthconcreteshearwallwithcfstcolumnsexperimentalinvestigation
_version_	1718412213136392192

Seismic Behavior of Steel-Fiber-Reinforced High-Strength Concrete Shear Wall with CFST Columns: Experimental Investigation

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