Behavior of Concrete-Filled Steel Tube Columns Subjected to Axial Compression
The behavior of concrete-filled steel tube (CFST) columns subjected to axial compression was experimentally investigated in this paper. Two kinds of columns, including CFST columns with foundation and columns without foundation, were tested. Columns of pure concrete and concrete with reinforcing bar...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/4059675 |
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| author | Pengfei Li Tao Zhang Chengzhi Wang |
| author_facet | Pengfei Li Tao Zhang Chengzhi Wang |
| author_sort | Pengfei Li |
| collection | DOAJ |
| description | The behavior of concrete-filled steel tube (CFST) columns subjected to axial compression was experimentally investigated in this paper. Two kinds of columns, including CFST columns with foundation and columns without foundation, were tested. Columns of pure concrete and concrete with reinforcing bars as well as two steel tube thicknesses were considered. The experimental results showed that the CFST column with reinforcing bars has a higher bearing capacity, more effective plastic behavior, and greater toughness, and the elastoplastic boundary point occurs when the load is approximately 0.4–0.5 times of the ultimate bearing capacity. The change of rock-socketed depth and the presence of steel tube will affect the ultimate bearing capacity of rock-socketed pile. The bearing capacities of the rock-socketed CFST columns are lower than those of rock-socketed columns without a steel tube under a vertical load; besides, the greater the rock-socketed depth, the greater the bearing capacity of the rock-socketed piles. In addition, a numerical comparison between the ultimate load and the theoretical value calculated from the relevant specifications shows that the ultimate load is generally considerably greater than the theoretical calculation results. |
| format | Article |
| id | doaj-art-84c0aa4c7d274a3c9c36aa2371faeff5 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-84c0aa4c7d274a3c9c36aa2371faeff52025-02-03T05:45:27ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/40596754059675Behavior of Concrete-Filled Steel Tube Columns Subjected to Axial CompressionPengfei Li0Tao Zhang1Chengzhi Wang2Chongqing Jiaotong University, Chongqing 400074, ChinaChongqing Jiaotong University, Chongqing 400074, ChinaChongqing Jiaotong University, Chongqing 400074, ChinaThe behavior of concrete-filled steel tube (CFST) columns subjected to axial compression was experimentally investigated in this paper. Two kinds of columns, including CFST columns with foundation and columns without foundation, were tested. Columns of pure concrete and concrete with reinforcing bars as well as two steel tube thicknesses were considered. The experimental results showed that the CFST column with reinforcing bars has a higher bearing capacity, more effective plastic behavior, and greater toughness, and the elastoplastic boundary point occurs when the load is approximately 0.4–0.5 times of the ultimate bearing capacity. The change of rock-socketed depth and the presence of steel tube will affect the ultimate bearing capacity of rock-socketed pile. The bearing capacities of the rock-socketed CFST columns are lower than those of rock-socketed columns without a steel tube under a vertical load; besides, the greater the rock-socketed depth, the greater the bearing capacity of the rock-socketed piles. In addition, a numerical comparison between the ultimate load and the theoretical value calculated from the relevant specifications shows that the ultimate load is generally considerably greater than the theoretical calculation results.http://dx.doi.org/10.1155/2018/4059675 |
| spellingShingle | Pengfei Li Tao Zhang Chengzhi Wang Behavior of Concrete-Filled Steel Tube Columns Subjected to Axial Compression Advances in Materials Science and Engineering |
| title | Behavior of Concrete-Filled Steel Tube Columns Subjected to Axial Compression |
| title_full | Behavior of Concrete-Filled Steel Tube Columns Subjected to Axial Compression |
| title_fullStr | Behavior of Concrete-Filled Steel Tube Columns Subjected to Axial Compression |
| title_full_unstemmed | Behavior of Concrete-Filled Steel Tube Columns Subjected to Axial Compression |
| title_short | Behavior of Concrete-Filled Steel Tube Columns Subjected to Axial Compression |
| title_sort | behavior of concrete filled steel tube columns subjected to axial compression |
| url | http://dx.doi.org/10.1155/2018/4059675 |
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