UHPC-Filled Rectangular Steel Tubular Beam–Column: Numerical Study and Design
This paper presents a numerical study on the nonlinear behaviors of UHPC-filled square steel tubular (UHPCFST) columns under complex actions. A novel fiber model was developed considering the local buckling effects of steel tubes. The reliability and robustness of the model were validated by a large...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/12/11/1882 |
| _version_ | 1797468855142973440 |
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| author | Heng Cai Yanxiang Yan |
| author_facet | Heng Cai Yanxiang Yan |
| author_sort | Heng Cai |
| collection | DOAJ |
| description | This paper presents a numerical study on the nonlinear behaviors of UHPC-filled square steel tubular (UHPCFST) columns under complex actions. A novel fiber model was developed considering the local buckling effects of steel tubes. The reliability and robustness of the model were validated by a large amount of experimental data in the reported literature. Then, the current design codes were evaluated and discussed on the basis of the collected experimental data, and a practical calculation method was finally proposed to predict the bending moment capacities of UHPCFST beam–columns. The results indicate that the proposed fiber model can accurately predict the nonlinear behaviors of UHPCFST beam–columns, including axial compression, eccentric compression, pure bending, and hysteretic behaviors. Compared with current design codes, the practical calculation method presents high precision and can accurately predict the bending moment capacities of UHPCFST beam–columns. |
| first_indexed | 2024-03-09T19:13:16Z |
| format | Article |
| id | doaj.art-6383cca20f624f0281de9832e247a9d0 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T19:13:16Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-6383cca20f624f0281de9832e247a9d02023-11-24T03:59:10ZengMDPI AGBuildings2075-53092022-11-011211188210.3390/buildings12111882UHPC-Filled Rectangular Steel Tubular Beam–Column: Numerical Study and DesignHeng Cai0Yanxiang Yan1School of Civil Engineering, Hubei Polytechnic University, Huangshi 435003, ChinaSchool of Civil Engineering, Hubei Engineering University, Xiaogan 432000, ChinaThis paper presents a numerical study on the nonlinear behaviors of UHPC-filled square steel tubular (UHPCFST) columns under complex actions. A novel fiber model was developed considering the local buckling effects of steel tubes. The reliability and robustness of the model were validated by a large amount of experimental data in the reported literature. Then, the current design codes were evaluated and discussed on the basis of the collected experimental data, and a practical calculation method was finally proposed to predict the bending moment capacities of UHPCFST beam–columns. The results indicate that the proposed fiber model can accurately predict the nonlinear behaviors of UHPCFST beam–columns, including axial compression, eccentric compression, pure bending, and hysteretic behaviors. Compared with current design codes, the practical calculation method presents high precision and can accurately predict the bending moment capacities of UHPCFST beam–columns.https://www.mdpi.com/2075-5309/12/11/1882UHPCFST columnsfiber modelcomplex actionslocal bucklingbearing capacities |
| spellingShingle | Heng Cai Yanxiang Yan UHPC-Filled Rectangular Steel Tubular Beam–Column: Numerical Study and Design Buildings UHPCFST columns fiber model complex actions local buckling bearing capacities |
| title | UHPC-Filled Rectangular Steel Tubular Beam–Column: Numerical Study and Design |
| title_full | UHPC-Filled Rectangular Steel Tubular Beam–Column: Numerical Study and Design |
| title_fullStr | UHPC-Filled Rectangular Steel Tubular Beam–Column: Numerical Study and Design |
| title_full_unstemmed | UHPC-Filled Rectangular Steel Tubular Beam–Column: Numerical Study and Design |
| title_short | UHPC-Filled Rectangular Steel Tubular Beam–Column: Numerical Study and Design |
| title_sort | uhpc filled rectangular steel tubular beam column numerical study and design |
| topic | UHPCFST columns fiber model complex actions local buckling bearing capacities |
| url | https://www.mdpi.com/2075-5309/12/11/1882 |
| work_keys_str_mv | AT hengcai uhpcfilledrectangularsteeltubularbeamcolumnnumericalstudyanddesign AT yanxiangyan uhpcfilledrectangularsteeltubularbeamcolumnnumericalstudyanddesign |