Effects of Out-of-Plane Deformation of the Base Plate on the Structural Behavior of an Exposed Column Base
This study explores the behavior of exposed column bases in concrete-filled steel tubular (CFST) and steel structures, with a focus on cases where base plates yield due to out-of-plane deformation. Understanding these mechanisms is crucial for improving the design and safety of these structures. Exp...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/14/12/3881 |
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| _version_ | 1846105402371997696 |
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| author | Ding Nan Hiroyuki Nakahara Iathong Chan |
| author_facet | Ding Nan Hiroyuki Nakahara Iathong Chan |
| author_sort | Ding Nan |
| collection | DOAJ |
| description | This study explores the behavior of exposed column bases in concrete-filled steel tubular (CFST) and steel structures, with a focus on cases where base plates yield due to out-of-plane deformation. Understanding these mechanisms is crucial for improving the design and safety of these structures. Experimental tests and numerical analyses were conducted on four specimens to investigate their lateral load versus drift angle behavior. The tests demonstrated that base plates exhibited sufficient deformation capacities and enhanced hysteresis characteristics. Finite element method (FEM) analysis successfully traced the load–deformation relationships observed in the tests, providing detailed insights into stress distribution on the base plates. Based on these analyses, a simplified calculation method was proposed to evaluate the horizontal strength of exposed column bases. The proposed method showed excellent agreement with the test results, highlighting its potential as a practical tool for structural design. |
| format | Article |
| id | doaj-art-21baa22ed7c64773bade31ab64bc261f |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-21baa22ed7c64773bade31ab64bc261f2024-12-27T14:15:37ZengMDPI AGBuildings2075-53092024-12-011412388110.3390/buildings14123881Effects of Out-of-Plane Deformation of the Base Plate on the Structural Behavior of an Exposed Column BaseDing Nan0Hiroyuki Nakahara1Iathong Chan2Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521, JapanGraduate School of Engineering, Nagasaki University, Nagasaki 852-8521, JapanGraduate School of Engineering, Nagasaki University, Nagasaki 852-8521, JapanThis study explores the behavior of exposed column bases in concrete-filled steel tubular (CFST) and steel structures, with a focus on cases where base plates yield due to out-of-plane deformation. Understanding these mechanisms is crucial for improving the design and safety of these structures. Experimental tests and numerical analyses were conducted on four specimens to investigate their lateral load versus drift angle behavior. The tests demonstrated that base plates exhibited sufficient deformation capacities and enhanced hysteresis characteristics. Finite element method (FEM) analysis successfully traced the load–deformation relationships observed in the tests, providing detailed insights into stress distribution on the base plates. Based on these analyses, a simplified calculation method was proposed to evaluate the horizontal strength of exposed column bases. The proposed method showed excellent agreement with the test results, highlighting its potential as a practical tool for structural design.https://www.mdpi.com/2075-5309/14/12/3881exposed column baseelastic plastic behaviorFEM analysishinging line theory |
| spellingShingle | Ding Nan Hiroyuki Nakahara Iathong Chan Effects of Out-of-Plane Deformation of the Base Plate on the Structural Behavior of an Exposed Column Base Buildings exposed column base elastic plastic behavior FEM analysis hinging line theory |
| title | Effects of Out-of-Plane Deformation of the Base Plate on the Structural Behavior of an Exposed Column Base |
| title_full | Effects of Out-of-Plane Deformation of the Base Plate on the Structural Behavior of an Exposed Column Base |
| title_fullStr | Effects of Out-of-Plane Deformation of the Base Plate on the Structural Behavior of an Exposed Column Base |
| title_full_unstemmed | Effects of Out-of-Plane Deformation of the Base Plate on the Structural Behavior of an Exposed Column Base |
| title_short | Effects of Out-of-Plane Deformation of the Base Plate on the Structural Behavior of an Exposed Column Base |
| title_sort | effects of out of plane deformation of the base plate on the structural behavior of an exposed column base |
| topic | exposed column base elastic plastic behavior FEM analysis hinging line theory |
| url | https://www.mdpi.com/2075-5309/14/12/3881 |
| work_keys_str_mv | AT dingnan effectsofoutofplanedeformationofthebaseplateonthestructuralbehaviorofanexposedcolumnbase AT hiroyukinakahara effectsofoutofplanedeformationofthebaseplateonthestructuralbehaviorofanexposedcolumnbase AT iathongchan effectsofoutofplanedeformationofthebaseplateonthestructuralbehaviorofanexposedcolumnbase |