Experimental study on axial compression performance of steel tube confined concrete after freeze-thaw cycles
To investigate the axial compression performance of steel tube-confined concrete short columns subjected to freeze-thaw cycles, this study fabricated 30 specimens. Subsequently, axial compression tests were conducted on these specimens after exposure to freeze-thaw cycles. The experimental setup acc...
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Elsevier
2024-12-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123024015214 |
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| author | Zaiping Zeng Genli Ren |
| author_facet | Zaiping Zeng Genli Ren |
| author_sort | Zaiping Zeng |
| collection | DOAJ |
| description | To investigate the axial compression performance of steel tube-confined concrete short columns subjected to freeze-thaw cycles, this study fabricated 30 specimens. Subsequently, axial compression tests were conducted on these specimens after exposure to freeze-thaw cycles. The experimental setup accounted for variations in parameters such as the number of freeze-thaw cycles, concrete strength grade, aspect ratio, and relative slip damage at the interface. The results indicate that, regardless of the presence of relative slip damage at the interface between the steel tube and concrete, the failure mode of the short column remains consistent for a given diameter-to-thickness ratio. Furthermore, it was found that the circumferential constraint coefficient significantly influences the failure mode while exhibiting minimal sensitivity to freeze-thaw degradation. As the number of freeze-thaw cycles increases, there is a notable reduction in load corresponding to the inflection point on the load-lateral deformation relationship curve. Concurrently, although there is an overall slight decrease in longitudinal stress ratios, transverse stress ratios exhibit an increase. To validate the trends regarding how freeze-thaw cycles affect longitudinal and transverse stress ratios, we employed a self-designed program for their calculation. |
| format | Article |
| id | doaj-art-98b6bc49b4db4eb082eb92670f1c63ed |
| institution | OA Journals |
| issn | 2590-1230 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-98b6bc49b4db4eb082eb92670f1c63ed2025-08-20T01:58:16ZengElsevierResults in Engineering2590-12302024-12-012410326710.1016/j.rineng.2024.103267Experimental study on axial compression performance of steel tube confined concrete after freeze-thaw cyclesZaiping Zeng0Genli Ren1Gansu Vocational College of Architecture, Lanzhou 730050, PR China; School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, PR ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, PR China; Corresponding author.To investigate the axial compression performance of steel tube-confined concrete short columns subjected to freeze-thaw cycles, this study fabricated 30 specimens. Subsequently, axial compression tests were conducted on these specimens after exposure to freeze-thaw cycles. The experimental setup accounted for variations in parameters such as the number of freeze-thaw cycles, concrete strength grade, aspect ratio, and relative slip damage at the interface. The results indicate that, regardless of the presence of relative slip damage at the interface between the steel tube and concrete, the failure mode of the short column remains consistent for a given diameter-to-thickness ratio. Furthermore, it was found that the circumferential constraint coefficient significantly influences the failure mode while exhibiting minimal sensitivity to freeze-thaw degradation. As the number of freeze-thaw cycles increases, there is a notable reduction in load corresponding to the inflection point on the load-lateral deformation relationship curve. Concurrently, although there is an overall slight decrease in longitudinal stress ratios, transverse stress ratios exhibit an increase. To validate the trends regarding how freeze-thaw cycles affect longitudinal and transverse stress ratios, we employed a self-designed program for their calculation.http://www.sciencedirect.com/science/article/pii/S2590123024015214Steel tube confined concrete (STCC)Axial compressionFreeze-thaw cyclesBearing capacityShort columns |
| spellingShingle | Zaiping Zeng Genli Ren Experimental study on axial compression performance of steel tube confined concrete after freeze-thaw cycles Results in Engineering Steel tube confined concrete (STCC) Axial compression Freeze-thaw cycles Bearing capacity Short columns |
| title | Experimental study on axial compression performance of steel tube confined concrete after freeze-thaw cycles |
| title_full | Experimental study on axial compression performance of steel tube confined concrete after freeze-thaw cycles |
| title_fullStr | Experimental study on axial compression performance of steel tube confined concrete after freeze-thaw cycles |
| title_full_unstemmed | Experimental study on axial compression performance of steel tube confined concrete after freeze-thaw cycles |
| title_short | Experimental study on axial compression performance of steel tube confined concrete after freeze-thaw cycles |
| title_sort | experimental study on axial compression performance of steel tube confined concrete after freeze thaw cycles |
| topic | Steel tube confined concrete (STCC) Axial compression Freeze-thaw cycles Bearing capacity Short columns |
| url | http://www.sciencedirect.com/science/article/pii/S2590123024015214 |
| work_keys_str_mv | AT zaipingzeng experimentalstudyonaxialcompressionperformanceofsteeltubeconfinedconcreteafterfreezethawcycles AT genliren experimentalstudyonaxialcompressionperformanceofsteeltubeconfinedconcreteafterfreezethawcycles |