Behavior of Axially Loaded Stirrup Confinement Rectangular Concrete-Filled Steel Tubular Stub Columns
This article presents the experimental and finite element (FE) analyses of two conventional rectangular concrete-filled steel tubular (CFT) stub columns, two stiffened rectangular concrete-filled steel tubular (SCFT) stub columns, and two stirrup confinement rectangular concrete-filled steel tubular...
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| Main Authors: | , , , , , , |
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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/10.1155/2019/2712091 |
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| author | Jing Liu Wen-jun Wang Fa-xing Ding Xin-fa Zeng Zhe Tan Yan Huang Bao-quan Wang |
| author_facet | Jing Liu Wen-jun Wang Fa-xing Ding Xin-fa Zeng Zhe Tan Yan Huang Bao-quan Wang |
| author_sort | Jing Liu |
| collection | DOAJ |
| description | This article presents the experimental and finite element (FE) analyses of two conventional rectangular concrete-filled steel tubular (CFT) stub columns, two stiffened rectangular concrete-filled steel tubular (SCFT) stub columns, and two stirrup confinement rectangular concrete-filled steel tubular (CCFT) stub columns concentrically loaded in compression to failure. The influences of the ductility and ultimate bearing strength of these stub columns with stiffening ribs or spiral stirrup confinement were discussed. Abaqus was used to establish a 3D FE model and analyze the properties of CFT stub columns subjected to axial compression. The effect of the concrete core and rectangular steel tube under loop stirrup confinement was discussed. Analytical results showed that spiral stirrup confinement can availably retard the local bucking of the rectangular steel pipe, and the effect of the spiral stirrup confinement was stronger than that of stiffeners. The DI values of SCFT and CCFT were 21.9% and 31.9% larger than those of CFT, respectively. The ultimate capacity values of SCFT and CCFT were 10.2% and 18% larger than those of CFT, respectively. The ductility and ultimate bearing strength of the specimens improved effectively under spiral stirrup confinement, and the ductility of the CCFT columns was preferable to that of the SCFT columns. |
| format | Article |
| id | doaj-art-a4dbb9b7ed7743348b4b95888da0969c |
| 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-a4dbb9b7ed7743348b4b95888da0969c2025-02-03T01:31:34ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/27120912712091Behavior of Axially Loaded Stirrup Confinement Rectangular Concrete-Filled Steel Tubular Stub ColumnsJing Liu0Wen-jun Wang1Fa-xing Ding2Xin-fa Zeng3Zhe Tan4Yan Huang5Bao-quan Wang6School of Civil Engineering, Central South University, Changsha, Hunan Province 410075, ChinaSchool of Civil Engineering, Central South University, Changsha, Hunan Province 410075, ChinaSchool of Civil Engineering, Central South University, Changsha, Hunan Province 410075, ChinaSchool of Civil Engineering, Hunan City University, Yiyang, Hunan Province 413000, ChinaSchool of Civil Engineering, Hunan City University, Yiyang, Hunan Province 413000, ChinaSchool of Civil Engineering, Hunan City University, Yiyang, Hunan Province 413000, ChinaSchool of Civil Engineering, Hunan City University, Yiyang, Hunan Province 413000, ChinaThis article presents the experimental and finite element (FE) analyses of two conventional rectangular concrete-filled steel tubular (CFT) stub columns, two stiffened rectangular concrete-filled steel tubular (SCFT) stub columns, and two stirrup confinement rectangular concrete-filled steel tubular (CCFT) stub columns concentrically loaded in compression to failure. The influences of the ductility and ultimate bearing strength of these stub columns with stiffening ribs or spiral stirrup confinement were discussed. Abaqus was used to establish a 3D FE model and analyze the properties of CFT stub columns subjected to axial compression. The effect of the concrete core and rectangular steel tube under loop stirrup confinement was discussed. Analytical results showed that spiral stirrup confinement can availably retard the local bucking of the rectangular steel pipe, and the effect of the spiral stirrup confinement was stronger than that of stiffeners. The DI values of SCFT and CCFT were 21.9% and 31.9% larger than those of CFT, respectively. The ultimate capacity values of SCFT and CCFT were 10.2% and 18% larger than those of CFT, respectively. The ductility and ultimate bearing strength of the specimens improved effectively under spiral stirrup confinement, and the ductility of the CCFT columns was preferable to that of the SCFT columns.http://dx.doi.org/10.1155/2019/2712091 |
| spellingShingle | Jing Liu Wen-jun Wang Fa-xing Ding Xin-fa Zeng Zhe Tan Yan Huang Bao-quan Wang Behavior of Axially Loaded Stirrup Confinement Rectangular Concrete-Filled Steel Tubular Stub Columns Advances in Civil Engineering |
| title | Behavior of Axially Loaded Stirrup Confinement Rectangular Concrete-Filled Steel Tubular Stub Columns |
| title_full | Behavior of Axially Loaded Stirrup Confinement Rectangular Concrete-Filled Steel Tubular Stub Columns |
| title_fullStr | Behavior of Axially Loaded Stirrup Confinement Rectangular Concrete-Filled Steel Tubular Stub Columns |
| title_full_unstemmed | Behavior of Axially Loaded Stirrup Confinement Rectangular Concrete-Filled Steel Tubular Stub Columns |
| title_short | Behavior of Axially Loaded Stirrup Confinement Rectangular Concrete-Filled Steel Tubular Stub Columns |
| title_sort | behavior of axially loaded stirrup confinement rectangular concrete filled steel tubular stub columns |
| url | http://dx.doi.org/10.1155/2019/2712091 |
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