Experimental and numerical investigations on the bond-slip behavior of the interface between geopolymer concrete and steel tube
Abstract This study conducts push-out tests on eight geopolymer concrete filled steel tube column specimens with varying design parameters to evaluate the effects of steel tube wall thickness, concrete strength, and the presence of welded longitudinal ribs on the bond-slip performance at the interfa...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-79964-1 |
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| author | Ran Hai Zeya Ma Xiang Chen Yun Cao Jianwei Zhang Cun Hui |
| author_facet | Ran Hai Zeya Ma Xiang Chen Yun Cao Jianwei Zhang Cun Hui |
| author_sort | Ran Hai |
| collection | DOAJ |
| description | Abstract This study conducts push-out tests on eight geopolymer concrete filled steel tube column specimens with varying design parameters to evaluate the effects of steel tube wall thickness, concrete strength, and the presence of welded longitudinal ribs on the bond-slip performance at the interface between geopolymer concrete and steel tube. The study analyzes the influence mechanism of chemical bonding force, mechanical bite force, and friction resistance on bond strength and a three-stage bond-slip constitutive relationship is established. The results indicate that steel tube strain increases with height, with significant strain observed at the welding structure and the fixed end of the steel tube. The length-to-diameter ratio, diameter-to-thickness ratio, concrete strength, and construction measures of the steel tube are identified as key factors in enhancing interfacial bonding performance. The presence of welded longitudinal ribs on the inner wall of the steel tube significantly improves the interface bonding. The calculated bond strength ratios, compared with the test results, fall within an 11% margin, demonstrating good agreement. |
| format | Article |
| id | doaj-art-eff5a7d0d9f142a3b286082e6dc0417c |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-eff5a7d0d9f142a3b286082e6dc0417c2024-11-24T12:21:19ZengNature PortfolioScientific Reports2045-23222024-11-0114111510.1038/s41598-024-79964-1Experimental and numerical investigations on the bond-slip behavior of the interface between geopolymer concrete and steel tubeRan Hai0Zeya Ma1Xiang Chen2Yun Cao3Jianwei Zhang4Cun Hui5School of Materials Science and Engineering, Henan University of Science and TechnologySchool of Intelligent Construction and Civil Engineering, Zhongyuan University of TechnologySchool of Intelligent Construction and Civil Engineering, Zhongyuan University of TechnologySchool of Intelligent Construction and Civil Engineering, Zhongyuan University of TechnologySchool of Civil Engineering, Beijing University of TechnologySchool of Intelligent Construction and Civil Engineering, Zhongyuan University of TechnologyAbstract This study conducts push-out tests on eight geopolymer concrete filled steel tube column specimens with varying design parameters to evaluate the effects of steel tube wall thickness, concrete strength, and the presence of welded longitudinal ribs on the bond-slip performance at the interface between geopolymer concrete and steel tube. The study analyzes the influence mechanism of chemical bonding force, mechanical bite force, and friction resistance on bond strength and a three-stage bond-slip constitutive relationship is established. The results indicate that steel tube strain increases with height, with significant strain observed at the welding structure and the fixed end of the steel tube. The length-to-diameter ratio, diameter-to-thickness ratio, concrete strength, and construction measures of the steel tube are identified as key factors in enhancing interfacial bonding performance. The presence of welded longitudinal ribs on the inner wall of the steel tube significantly improves the interface bonding. The calculated bond strength ratios, compared with the test results, fall within an 11% margin, demonstrating good agreement.https://doi.org/10.1038/s41598-024-79964-1Geopolymer concrete filled steel tubeBond-slip performanceBond strengthNumerical analysis |
| spellingShingle | Ran Hai Zeya Ma Xiang Chen Yun Cao Jianwei Zhang Cun Hui Experimental and numerical investigations on the bond-slip behavior of the interface between geopolymer concrete and steel tube Scientific Reports Geopolymer concrete filled steel tube Bond-slip performance Bond strength Numerical analysis |
| title | Experimental and numerical investigations on the bond-slip behavior of the interface between geopolymer concrete and steel tube |
| title_full | Experimental and numerical investigations on the bond-slip behavior of the interface between geopolymer concrete and steel tube |
| title_fullStr | Experimental and numerical investigations on the bond-slip behavior of the interface between geopolymer concrete and steel tube |
| title_full_unstemmed | Experimental and numerical investigations on the bond-slip behavior of the interface between geopolymer concrete and steel tube |
| title_short | Experimental and numerical investigations on the bond-slip behavior of the interface between geopolymer concrete and steel tube |
| title_sort | experimental and numerical investigations on the bond slip behavior of the interface between geopolymer concrete and steel tube |
| topic | Geopolymer concrete filled steel tube Bond-slip performance Bond strength Numerical analysis |
| url | https://doi.org/10.1038/s41598-024-79964-1 |
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