Analysis of Buckling Deformation for the Side Plate of Rectangular CSFT Column Based on Plate Theory with Bi-Axial Loads
In this paper, under the condition of bidirectional stress, the buckling deformation of the side plate in a rectangular concrete-filled steel tube (CFST) column has been studied in detail. We have conducted a theocratical analysis, an experimental validation and a finite element simulation to invest...
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MDPI AG
2022-05-01
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| Online Access: | https://www.mdpi.com/2075-5309/12/5/626 |
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| author | Bing Xu Lang Wang Chunyan Xiang Zhenyu Han |
| author_facet | Bing Xu Lang Wang Chunyan Xiang Zhenyu Han |
| author_sort | Bing Xu |
| collection | DOAJ |
| description | In this paper, under the condition of bidirectional stress, the buckling deformation of the side plate in a rectangular concrete-filled steel tube (CFST) column has been studied in detail. We have conducted a theocratical analysis, an experimental validation and a finite element simulation to investigate the influences of the height-width ratios and Nominal Poisson’s ratios on the buckling form of the side plate, and we also try to explain the change of buckling form between unidirectional and bidirectional stress, both of them can provide a good reference and basis for design and application of the CFST column. The specific work can be summarized as follows: Firstly, a theoretical analysis has been conducted to study the buckling coefficient solution method of the thin plate under the conditions of axial compress and transverse tension. Then, under the conditions of the unidirectional and the bidirectional stress, a comparative study is carried out to investigate the changing relationship of the buckling coefficient (<i>k</i>) of the side plate; the results indicate that the buckling characteristic is changed due to the bidirectional stress, meanwhile, the buckling coefficient and the number of buckling half-wave will increase. Furthermore, the existing outcomes and the numerical simulations are adopted to study the relevance between the number of the elastic buckling half-wave in the side plate and the corresponding height-width ratio of the component; the results indicate that the former is larger than the latter. Finally, based on the obtained, the buckling relationship curve, the conclusion can be drawn as follows: when the bidirectional stress has been applied to the side plate, there is an equal interval between the different buckling half-waves; meanwhile, the interval shows a quadratic function reduce trend with the increase of nominal Poisson’s ratio. |
| first_indexed | 2024-03-10T03:13:46Z |
| format | Article |
| id | doaj.art-92229a622b3d43ca8d1d3a1466f8b0c9 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-10T03:13:46Z |
| publishDate | 2022-05-01 |
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| record_format | Article |
| series | Buildings |
| spelling | doaj.art-92229a622b3d43ca8d1d3a1466f8b0c92023-11-23T10:20:47ZengMDPI AGBuildings2075-53092022-05-0112562610.3390/buildings12050626Analysis of Buckling Deformation for the Side Plate of Rectangular CSFT Column Based on Plate Theory with Bi-Axial LoadsBing Xu0Lang Wang1Chunyan Xiang2Zhenyu Han3Civil Engineering Department, Yancheng Institute of Technology, Yancheng 224051, ChinaCivil Engineering Department, Yancheng Institute of Technology, Yancheng 224051, ChinaSchool of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan 430074, ChinaCivil Engineering Department, Yancheng Institute of Technology, Yancheng 224051, ChinaIn this paper, under the condition of bidirectional stress, the buckling deformation of the side plate in a rectangular concrete-filled steel tube (CFST) column has been studied in detail. We have conducted a theocratical analysis, an experimental validation and a finite element simulation to investigate the influences of the height-width ratios and Nominal Poisson’s ratios on the buckling form of the side plate, and we also try to explain the change of buckling form between unidirectional and bidirectional stress, both of them can provide a good reference and basis for design and application of the CFST column. The specific work can be summarized as follows: Firstly, a theoretical analysis has been conducted to study the buckling coefficient solution method of the thin plate under the conditions of axial compress and transverse tension. Then, under the conditions of the unidirectional and the bidirectional stress, a comparative study is carried out to investigate the changing relationship of the buckling coefficient (<i>k</i>) of the side plate; the results indicate that the buckling characteristic is changed due to the bidirectional stress, meanwhile, the buckling coefficient and the number of buckling half-wave will increase. Furthermore, the existing outcomes and the numerical simulations are adopted to study the relevance between the number of the elastic buckling half-wave in the side plate and the corresponding height-width ratio of the component; the results indicate that the former is larger than the latter. Finally, based on the obtained, the buckling relationship curve, the conclusion can be drawn as follows: when the bidirectional stress has been applied to the side plate, there is an equal interval between the different buckling half-waves; meanwhile, the interval shows a quadratic function reduce trend with the increase of nominal Poisson’s ratio.https://www.mdpi.com/2075-5309/12/5/626rectangular concrete-filled steel tube columnelastic bucklingbuckling coefficient |
| spellingShingle | Bing Xu Lang Wang Chunyan Xiang Zhenyu Han Analysis of Buckling Deformation for the Side Plate of Rectangular CSFT Column Based on Plate Theory with Bi-Axial Loads Buildings rectangular concrete-filled steel tube column elastic buckling buckling coefficient |
| title | Analysis of Buckling Deformation for the Side Plate of Rectangular CSFT Column Based on Plate Theory with Bi-Axial Loads |
| title_full | Analysis of Buckling Deformation for the Side Plate of Rectangular CSFT Column Based on Plate Theory with Bi-Axial Loads |
| title_fullStr | Analysis of Buckling Deformation for the Side Plate of Rectangular CSFT Column Based on Plate Theory with Bi-Axial Loads |
| title_full_unstemmed | Analysis of Buckling Deformation for the Side Plate of Rectangular CSFT Column Based on Plate Theory with Bi-Axial Loads |
| title_short | Analysis of Buckling Deformation for the Side Plate of Rectangular CSFT Column Based on Plate Theory with Bi-Axial Loads |
| title_sort | analysis of buckling deformation for the side plate of rectangular csft column based on plate theory with bi axial loads |
| topic | rectangular concrete-filled steel tube column elastic buckling buckling coefficient |
| url | https://www.mdpi.com/2075-5309/12/5/626 |
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