Seismic Behavior of Elliptical Concrete-Filled Steel Tubular Columns under Combined Axial Compression and Cyclic Lateral Loading

Elliptical concrete-filled steel tubular (CFST) column is a new form of CFST columns, consisting of an outer elliptical tube filled with concrete. Although the study on mechanical performance of the elliptical CFST members is receiving more and more attention, they have been limited to static behavi...

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Main Authors: YouWu Xu, Jian Yao, Feng Hu, Ying Zhou, Shuai Jiang
Format: Article
Language:English
Published: Hindawi Limited 2021-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2021/5892788
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author YouWu Xu
Jian Yao
Feng Hu
Ying Zhou
Shuai Jiang
author_facet YouWu Xu
Jian Yao
Feng Hu
Ying Zhou
Shuai Jiang
author_sort YouWu Xu
collection DOAJ
description Elliptical concrete-filled steel tubular (CFST) column is a new form of CFST columns, consisting of an outer elliptical tube filled with concrete. Although the study on mechanical performance of the elliptical CFST members is receiving more and more attention, they have been limited to static behavior. Against this background, an experimental study on elliptical CFST columns was carried out under combined axial compression and cyclic lateral loading. The failure modes, hysteretic curves, skeleton curves, load carrying capacity, deformability, stiffness degradation, and energy dissipation ability was obtained and discussed. The test results indicated that the elliptical CFST columns possess excellent seismic performance and ductility. Valuable experimental data were provided for the formulation of the theoretical hysteresis model of the elliptical CFST columns.
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spelling doaj.art-3307782b6e6745c99b4f70ccc11933132022-12-22T04:04:11ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84422021-01-01202110.1155/2021/5892788Seismic Behavior of Elliptical Concrete-Filled Steel Tubular Columns under Combined Axial Compression and Cyclic Lateral LoadingYouWu Xu0Jian Yao1Feng Hu2Ying Zhou3Shuai Jiang4College of Civil Engineering and ArchitectureCollege of Civil Engineering and ArchitectureNingbo Urban Planning and Design InstituteCollege of Civil Engineering and ArchitectureCollege of Civil Engineering and ArchitectureElliptical concrete-filled steel tubular (CFST) column is a new form of CFST columns, consisting of an outer elliptical tube filled with concrete. Although the study on mechanical performance of the elliptical CFST members is receiving more and more attention, they have been limited to static behavior. Against this background, an experimental study on elliptical CFST columns was carried out under combined axial compression and cyclic lateral loading. The failure modes, hysteretic curves, skeleton curves, load carrying capacity, deformability, stiffness degradation, and energy dissipation ability was obtained and discussed. The test results indicated that the elliptical CFST columns possess excellent seismic performance and ductility. Valuable experimental data were provided for the formulation of the theoretical hysteresis model of the elliptical CFST columns.http://dx.doi.org/10.1155/2021/5892788
spellingShingle YouWu Xu
Jian Yao
Feng Hu
Ying Zhou
Shuai Jiang
Seismic Behavior of Elliptical Concrete-Filled Steel Tubular Columns under Combined Axial Compression and Cyclic Lateral Loading
Advances in Materials Science and Engineering
title Seismic Behavior of Elliptical Concrete-Filled Steel Tubular Columns under Combined Axial Compression and Cyclic Lateral Loading
title_full Seismic Behavior of Elliptical Concrete-Filled Steel Tubular Columns under Combined Axial Compression and Cyclic Lateral Loading
title_fullStr Seismic Behavior of Elliptical Concrete-Filled Steel Tubular Columns under Combined Axial Compression and Cyclic Lateral Loading
title_full_unstemmed Seismic Behavior of Elliptical Concrete-Filled Steel Tubular Columns under Combined Axial Compression and Cyclic Lateral Loading
title_short Seismic Behavior of Elliptical Concrete-Filled Steel Tubular Columns under Combined Axial Compression and Cyclic Lateral Loading
title_sort seismic behavior of elliptical concrete filled steel tubular columns under combined axial compression and cyclic lateral loading
url http://dx.doi.org/10.1155/2021/5892788
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