Mechanism Study on the Axial Compressive Performance of Short Square CFST Columns with Different Stiffeners
In order to limit the disengaging of short square concrete-filled steel tube (CFST) columns and strengthen the combined action of steel tubes and concrete, a reinforcing method of stiffener is put forward in this paper. The axial compression performance and mechanism are studied through experiments,...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/9109371 |
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| author | Bing Xu Fahong Wu Guizhong Xu |
| author_facet | Bing Xu Fahong Wu Guizhong Xu |
| author_sort | Bing Xu |
| collection | DOAJ |
| description | In order to limit the disengaging of short square concrete-filled steel tube (CFST) columns and strengthen the combined action of steel tubes and concrete, a reinforcing method of stiffener is put forward in this paper. The axial compression performance and mechanism are studied through experiments, which indicate that (1) the buckling model of stiffening members changes into double wave, (2) stiffeners enforce the constraint in core concrete, (3) stiffeners can effectively improve the ultimate bearing capacity, (4) the stiffeners increase the stress in the middle of the steel tube and improve the distribution of stress for the core concrete, and (5) the direct ribs have more influence on the bearing capacity while ribs with holes have more impact on the deformation of the tube. At the end of the article, a formula for calculating the ultimate bearing capacity is presented, which can bring out a more accurate bearing capacity value. |
| format | Article |
| id | doaj-art-fd7f1a37835e48f5a72be933989ef844 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-fd7f1a37835e48f5a72be933989ef8442025-02-03T01:20:04ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/91093719109371Mechanism Study on the Axial Compressive Performance of Short Square CFST Columns with Different StiffenersBing Xu0Fahong Wu1Guizhong Xu2Civil Engineering Department of Yancheng Institute of Technology, Yancheng 224051, ChinaCivil Engineering Department of Yancheng Institute of Technology, Yancheng 224051, ChinaCivil Engineering Department of Yancheng Institute of Technology, Yancheng 224051, ChinaIn order to limit the disengaging of short square concrete-filled steel tube (CFST) columns and strengthen the combined action of steel tubes and concrete, a reinforcing method of stiffener is put forward in this paper. The axial compression performance and mechanism are studied through experiments, which indicate that (1) the buckling model of stiffening members changes into double wave, (2) stiffeners enforce the constraint in core concrete, (3) stiffeners can effectively improve the ultimate bearing capacity, (4) the stiffeners increase the stress in the middle of the steel tube and improve the distribution of stress for the core concrete, and (5) the direct ribs have more influence on the bearing capacity while ribs with holes have more impact on the deformation of the tube. At the end of the article, a formula for calculating the ultimate bearing capacity is presented, which can bring out a more accurate bearing capacity value.http://dx.doi.org/10.1155/2018/9109371 |
| spellingShingle | Bing Xu Fahong Wu Guizhong Xu Mechanism Study on the Axial Compressive Performance of Short Square CFST Columns with Different Stiffeners Advances in Civil Engineering |
| title | Mechanism Study on the Axial Compressive Performance of Short Square CFST Columns with Different Stiffeners |
| title_full | Mechanism Study on the Axial Compressive Performance of Short Square CFST Columns with Different Stiffeners |
| title_fullStr | Mechanism Study on the Axial Compressive Performance of Short Square CFST Columns with Different Stiffeners |
| title_full_unstemmed | Mechanism Study on the Axial Compressive Performance of Short Square CFST Columns with Different Stiffeners |
| title_short | Mechanism Study on the Axial Compressive Performance of Short Square CFST Columns with Different Stiffeners |
| title_sort | mechanism study on the axial compressive performance of short square cfst columns with different stiffeners |
| url | http://dx.doi.org/10.1155/2018/9109371 |
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