Experimental and numerical research on axial compression performance of precast concrete columns with a novel steel connection
To investigate the axial compression performances of precast concrete columns with a novel steel connection, axial compression tests were carried out on 14 specimens. The effects of four different forms of the steel connections on the failure modes and axial compression performance of the specimens...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2025-05-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2025.1579672/full |
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| author | Jinlong Guo Jinlong Guo Chao Li Chao Li Min Chen Min Chen Yanfei Guo Qiang Fu Yongjin Li Yongjin Li |
| author_facet | Jinlong Guo Jinlong Guo Chao Li Chao Li Min Chen Min Chen Yanfei Guo Qiang Fu Yongjin Li Yongjin Li |
| author_sort | Jinlong Guo |
| collection | DOAJ |
| description | To investigate the axial compression performances of precast concrete columns with a novel steel connection, axial compression tests were carried out on 14 specimens. The effects of four different forms of the steel connections on the failure modes and axial compression performance of the specimens were studied, respectively. Furthermore, the influences of the cross-sectional area and the anchorage length of the steel connections on the specimens were explored. The columns with both studs and anchor plates exhibit good axial compression stiffness, bearing capacity, and ductility. For specimens with neither studs nor anchor plates on the steel connection, the yield loads decrease by 1.8%–5.2%. Increasing the cross-sectional area of the steel connection can significantly improve the axial compression bearing capacity of the columns, but has a negligible effect on the initial axial compression stiffness. Within the range of cross-sectional dimensions discussed in this test, the yield load has increased by up to 31.5%. In addition, a verified numerical model of the column was established and further analysis was conducted. The studs and anchor plates can effectively ensure that the steel connections are well anchored in the concrete under axial compression. For the column with both studs and anchor plates, the exposed steel connection serves as the axial compression control section, and the failure of the column under axial compression is the compressive yield of the steel connection. Lastly, the axial compressive bearing capacity of the column was calculated by the equation. |
| format | Article |
| id | doaj-art-ccecae8ea2654ea6b836d59467e0f392 |
| institution | OA Journals |
| issn | 2296-8016 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj-art-ccecae8ea2654ea6b836d59467e0f3922025-08-20T02:33:20ZengFrontiers Media S.A.Frontiers in Materials2296-80162025-05-011210.3389/fmats.2025.15796721579672Experimental and numerical research on axial compression performance of precast concrete columns with a novel steel connectionJinlong Guo0Jinlong Guo1Chao Li2Chao Li3Min Chen4Min Chen5Yanfei Guo6Qiang Fu7Yongjin Li8Yongjin Li9College of Engineering, Fujian Jiangxia University, Fuzhou, ChinaInstitute of Infrastructural Protection in Fujian Jiangxia University, Fuzhou, ChinaCollege of Engineering, Fujian Jiangxia University, Fuzhou, ChinaCollege of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, Fuzhou, ChinaCollege of Engineering, Fujian Jiangxia University, Fuzhou, ChinaCollege of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, Fuzhou, ChinaCollege of Materials Science and Engineering, Fuzhou University, Fuzhou, ChinaCollege of Engineering, Fujian Jiangxia University, Fuzhou, ChinaCollege of Engineering, Fujian Jiangxia University, Fuzhou, ChinaInstitute of Infrastructural Protection in Fujian Jiangxia University, Fuzhou, ChinaTo investigate the axial compression performances of precast concrete columns with a novel steel connection, axial compression tests were carried out on 14 specimens. The effects of four different forms of the steel connections on the failure modes and axial compression performance of the specimens were studied, respectively. Furthermore, the influences of the cross-sectional area and the anchorage length of the steel connections on the specimens were explored. The columns with both studs and anchor plates exhibit good axial compression stiffness, bearing capacity, and ductility. For specimens with neither studs nor anchor plates on the steel connection, the yield loads decrease by 1.8%–5.2%. Increasing the cross-sectional area of the steel connection can significantly improve the axial compression bearing capacity of the columns, but has a negligible effect on the initial axial compression stiffness. Within the range of cross-sectional dimensions discussed in this test, the yield load has increased by up to 31.5%. In addition, a verified numerical model of the column was established and further analysis was conducted. The studs and anchor plates can effectively ensure that the steel connections are well anchored in the concrete under axial compression. For the column with both studs and anchor plates, the exposed steel connection serves as the axial compression control section, and the failure of the column under axial compression is the compressive yield of the steel connection. Lastly, the axial compressive bearing capacity of the column was calculated by the equation.https://www.frontiersin.org/articles/10.3389/fmats.2025.1579672/fullprecast concrete columnssteel connectionstud and anchor plateaxial compression performanceexperimental and numerical research |
| spellingShingle | Jinlong Guo Jinlong Guo Chao Li Chao Li Min Chen Min Chen Yanfei Guo Qiang Fu Yongjin Li Yongjin Li Experimental and numerical research on axial compression performance of precast concrete columns with a novel steel connection Frontiers in Materials precast concrete columns steel connection stud and anchor plate axial compression performance experimental and numerical research |
| title | Experimental and numerical research on axial compression performance of precast concrete columns with a novel steel connection |
| title_full | Experimental and numerical research on axial compression performance of precast concrete columns with a novel steel connection |
| title_fullStr | Experimental and numerical research on axial compression performance of precast concrete columns with a novel steel connection |
| title_full_unstemmed | Experimental and numerical research on axial compression performance of precast concrete columns with a novel steel connection |
| title_short | Experimental and numerical research on axial compression performance of precast concrete columns with a novel steel connection |
| title_sort | experimental and numerical research on axial compression performance of precast concrete columns with a novel steel connection |
| topic | precast concrete columns steel connection stud and anchor plate axial compression performance experimental and numerical research |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2025.1579672/full |
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