Axial Compression Behaviors of the Steel Tube Confined Reinforced Concrete Columns with Binding Bars
An experimental study on the steel tube confined reinforced concrete (STCRC) column with binding bars under axial compression is conducted. The bearing capacity and failure modes are obtained. It can be known that the axial deformation of concrete occurred under compression. The core concrete is wra...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/6683429 |
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| author | Hao Hu Zhengliang Li Xi Tu Junfeng Tang |
| author_facet | Hao Hu Zhengliang Li Xi Tu Junfeng Tang |
| author_sort | Hao Hu |
| collection | DOAJ |
| description | An experimental study on the steel tube confined reinforced concrete (STCRC) column with binding bars under axial compression is conducted. The bearing capacity and failure modes are obtained. It can be known that the axial deformation of concrete occurred under compression. The core concrete is wrapped and constrained by the steel tube wall, and the steel tube wall is constrained by binding bars locally, so the local buckling shape of the wall between the binding bars is like wave shape. The 3D finite element model is also developed to analyze the behavior of this type of column under axial compression. Good agreement is shown between the test and predicted results in terms of the load-deformation curves and ultimate strength. The parametric studies indicate that the spacing of binding bars, diameter of longitudinal bars, concrete strength, thickness of the steel tube wall, and section dimension of the column generate different influence on the mechanical properties and bearing capacity. The diameter of longitudinal bars, concrete strength, and section dimension of the column have a great effect on the ultimate bearing capacity. The numerical results also show that the spacing of binding bars has little effect on the ultimate bearing capacity. The larger thickness of the steel tube wall leads to adverse effect on the specimen performance. Finally, the theoretical calculation is carried out, and the result is good. |
| format | Article |
| id | doaj-art-427afab170e84fa382bdeba92b81a6b8 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-427afab170e84fa382bdeba92b81a6b82025-08-20T03:35:57ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/66834296683429Axial Compression Behaviors of the Steel Tube Confined Reinforced Concrete Columns with Binding BarsHao Hu0Zhengliang Li1Xi Tu2Junfeng Tang3School of Civil Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400045, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400045, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400045, ChinaAn experimental study on the steel tube confined reinforced concrete (STCRC) column with binding bars under axial compression is conducted. The bearing capacity and failure modes are obtained. It can be known that the axial deformation of concrete occurred under compression. The core concrete is wrapped and constrained by the steel tube wall, and the steel tube wall is constrained by binding bars locally, so the local buckling shape of the wall between the binding bars is like wave shape. The 3D finite element model is also developed to analyze the behavior of this type of column under axial compression. Good agreement is shown between the test and predicted results in terms of the load-deformation curves and ultimate strength. The parametric studies indicate that the spacing of binding bars, diameter of longitudinal bars, concrete strength, thickness of the steel tube wall, and section dimension of the column generate different influence on the mechanical properties and bearing capacity. The diameter of longitudinal bars, concrete strength, and section dimension of the column have a great effect on the ultimate bearing capacity. The numerical results also show that the spacing of binding bars has little effect on the ultimate bearing capacity. The larger thickness of the steel tube wall leads to adverse effect on the specimen performance. Finally, the theoretical calculation is carried out, and the result is good.http://dx.doi.org/10.1155/2020/6683429 |
| spellingShingle | Hao Hu Zhengliang Li Xi Tu Junfeng Tang Axial Compression Behaviors of the Steel Tube Confined Reinforced Concrete Columns with Binding Bars Advances in Materials Science and Engineering |
| title | Axial Compression Behaviors of the Steel Tube Confined Reinforced Concrete Columns with Binding Bars |
| title_full | Axial Compression Behaviors of the Steel Tube Confined Reinforced Concrete Columns with Binding Bars |
| title_fullStr | Axial Compression Behaviors of the Steel Tube Confined Reinforced Concrete Columns with Binding Bars |
| title_full_unstemmed | Axial Compression Behaviors of the Steel Tube Confined Reinforced Concrete Columns with Binding Bars |
| title_short | Axial Compression Behaviors of the Steel Tube Confined Reinforced Concrete Columns with Binding Bars |
| title_sort | axial compression behaviors of the steel tube confined reinforced concrete columns with binding bars |
| url | http://dx.doi.org/10.1155/2020/6683429 |
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