Axial Cyclic Testing of Concrete-Filled Steel Tube Columns in Diagrid Structures
Inclined concrete-filled steel tube (CFST) columns in a diagrid structure system can efficiently carry large vertical loads and horizontal forces. This paper presents an experimental study of the stress characteristics of engineered inclined CFST columns under axial cyclic loading. Ten specimens wer...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/4726029 |
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| author | Qingxuan Shi Wenzhe Cai Bin Wang |
| author_facet | Qingxuan Shi Wenzhe Cai Bin Wang |
| author_sort | Qingxuan Shi |
| collection | DOAJ |
| description | Inclined concrete-filled steel tube (CFST) columns in a diagrid structure system can efficiently carry large vertical loads and horizontal forces. This paper presents an experimental study of the stress characteristics of engineered inclined CFST columns under axial cyclic loading. Ten specimens were tested, including two hollow steel tube (HST) columns and eight CFST columns, and the influences of loading scheme, aspect ratio, concrete strength, and steel ratio were examined. The seismic behaviours were investigated, including mechanical behaviour, failure modes and hysteretic curves, and ductility, and the interaction between the steel tube and concrete was examined as well. Better ductility and energy dissipation capacity are achieved in the tension direction, whereas higher bearing capacity and stiffness are achieved in the compression direction. Compared with hollow steel tube columns, the supporting effect of concrete on the steel tube for CFST columns in tension and the restraining effect of the steel tube on concrete for CFST columns in compression ensure higher capacity, deformability, and energy dissipation capacity. |
| format | Article |
| id | doaj-art-3f06d30f6dce426db31944b2e41336ee |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-3f06d30f6dce426db31944b2e41336ee2025-02-03T05:59:11ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/47260294726029Axial Cyclic Testing of Concrete-Filled Steel Tube Columns in Diagrid StructuresQingxuan Shi0Wenzhe Cai1Bin Wang2State Key Laboratory of Green Building in Western China, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaState Key Laboratory of Green Building in Western China, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaState Key Laboratory of Green Building in Western China, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaInclined concrete-filled steel tube (CFST) columns in a diagrid structure system can efficiently carry large vertical loads and horizontal forces. This paper presents an experimental study of the stress characteristics of engineered inclined CFST columns under axial cyclic loading. Ten specimens were tested, including two hollow steel tube (HST) columns and eight CFST columns, and the influences of loading scheme, aspect ratio, concrete strength, and steel ratio were examined. The seismic behaviours were investigated, including mechanical behaviour, failure modes and hysteretic curves, and ductility, and the interaction between the steel tube and concrete was examined as well. Better ductility and energy dissipation capacity are achieved in the tension direction, whereas higher bearing capacity and stiffness are achieved in the compression direction. Compared with hollow steel tube columns, the supporting effect of concrete on the steel tube for CFST columns in tension and the restraining effect of the steel tube on concrete for CFST columns in compression ensure higher capacity, deformability, and energy dissipation capacity.http://dx.doi.org/10.1155/2019/4726029 |
| spellingShingle | Qingxuan Shi Wenzhe Cai Bin Wang Axial Cyclic Testing of Concrete-Filled Steel Tube Columns in Diagrid Structures Advances in Civil Engineering |
| title | Axial Cyclic Testing of Concrete-Filled Steel Tube Columns in Diagrid Structures |
| title_full | Axial Cyclic Testing of Concrete-Filled Steel Tube Columns in Diagrid Structures |
| title_fullStr | Axial Cyclic Testing of Concrete-Filled Steel Tube Columns in Diagrid Structures |
| title_full_unstemmed | Axial Cyclic Testing of Concrete-Filled Steel Tube Columns in Diagrid Structures |
| title_short | Axial Cyclic Testing of Concrete-Filled Steel Tube Columns in Diagrid Structures |
| title_sort | axial cyclic testing of concrete filled steel tube columns in diagrid structures |
| url | http://dx.doi.org/10.1155/2019/4726029 |
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