Influence of geopolymer foam concrete on the mechanical performance of cold-formed steel built-up columns
This study aims to improve the bearing capacity and prevent buckling deformation in cold-formed steel (CFS) columns by investigating the utilization of built-up CFS columns filled with geopolymer foam concrete (GFC). The research employs a combination of experimental testing, numerical simulations,...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509525002773 |
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| author | Yanchun Li Jiahong Wei Aihong Han Yun Xu Menghui Qiao Dazhi He |
| author_facet | Yanchun Li Jiahong Wei Aihong Han Yun Xu Menghui Qiao Dazhi He |
| author_sort | Yanchun Li |
| collection | DOAJ |
| description | This study aims to improve the bearing capacity and prevent buckling deformation in cold-formed steel (CFS) columns by investigating the utilization of built-up CFS columns filled with geopolymer foam concrete (GFC). The research employs a combination of experimental testing, numerical simulations, and theoretical analysis. The study conducts axial compression tests on various column configurations, including CFS single-limb columns, CFS built-up columns, and CFS-geopolymer foam concrete (CFS-GFC) composite columns. The buckling modes, failure features, bearing capacities, and the bonding effects between GFC and CFS are compared and analyzed. A finite element model is developed and validated against experimental data to investigate key parameters such as slenderness ratio, width-to-thickness ratio, number of solder joints, GFC density grade, stiffening ribs, and their effects on buckling behavior, bearing capacity, and failure mechanisms in CFS-GFC composite columns. Determining the bearing capacity of CFS-GFC composite columns is a complex task, where the study evaluates the bearing capacity based on Chinese (JGJ138–2016 and GB50936–2014), American LRFD, and Japanese AIJ design codes to address this challenge. A calculation method is proposed to accurately determine the bearing capacity of CFS-GFC composite columns under axial compression, with the validity of the formula confirmed through extensive FEM analysis and experimental data. |
| format | Article |
| id | doaj-art-aa841bdfff13406baae3d1f53562cd14 |
| institution | DOAJ |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-aa841bdfff13406baae3d1f53562cd142025-08-20T03:16:18ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e0447910.1016/j.cscm.2025.e04479Influence of geopolymer foam concrete on the mechanical performance of cold-formed steel built-up columnsYanchun Li0Jiahong Wei1Aihong Han2Yun Xu3Menghui Qiao4Dazhi He5School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaHenan Academy of Sciences, Zhengzhou 450052, ChinaSchool of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, China; Corresponding author.School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaSchool of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaSchool of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaThis study aims to improve the bearing capacity and prevent buckling deformation in cold-formed steel (CFS) columns by investigating the utilization of built-up CFS columns filled with geopolymer foam concrete (GFC). The research employs a combination of experimental testing, numerical simulations, and theoretical analysis. The study conducts axial compression tests on various column configurations, including CFS single-limb columns, CFS built-up columns, and CFS-geopolymer foam concrete (CFS-GFC) composite columns. The buckling modes, failure features, bearing capacities, and the bonding effects between GFC and CFS are compared and analyzed. A finite element model is developed and validated against experimental data to investigate key parameters such as slenderness ratio, width-to-thickness ratio, number of solder joints, GFC density grade, stiffening ribs, and their effects on buckling behavior, bearing capacity, and failure mechanisms in CFS-GFC composite columns. Determining the bearing capacity of CFS-GFC composite columns is a complex task, where the study evaluates the bearing capacity based on Chinese (JGJ138–2016 and GB50936–2014), American LRFD, and Japanese AIJ design codes to address this challenge. A calculation method is proposed to accurately determine the bearing capacity of CFS-GFC composite columns under axial compression, with the validity of the formula confirmed through extensive FEM analysis and experimental data.http://www.sciencedirect.com/science/article/pii/S2214509525002773Cold-formed steelComposite columnCalculation methodExperimentFailure featuresGeopolymer foam concrete |
| spellingShingle | Yanchun Li Jiahong Wei Aihong Han Yun Xu Menghui Qiao Dazhi He Influence of geopolymer foam concrete on the mechanical performance of cold-formed steel built-up columns Case Studies in Construction Materials Cold-formed steel Composite column Calculation method Experiment Failure features Geopolymer foam concrete |
| title | Influence of geopolymer foam concrete on the mechanical performance of cold-formed steel built-up columns |
| title_full | Influence of geopolymer foam concrete on the mechanical performance of cold-formed steel built-up columns |
| title_fullStr | Influence of geopolymer foam concrete on the mechanical performance of cold-formed steel built-up columns |
| title_full_unstemmed | Influence of geopolymer foam concrete on the mechanical performance of cold-formed steel built-up columns |
| title_short | Influence of geopolymer foam concrete on the mechanical performance of cold-formed steel built-up columns |
| title_sort | influence of geopolymer foam concrete on the mechanical performance of cold formed steel built up columns |
| topic | Cold-formed steel Composite column Calculation method Experiment Failure features Geopolymer foam concrete |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525002773 |
| work_keys_str_mv | AT yanchunli influenceofgeopolymerfoamconcreteonthemechanicalperformanceofcoldformedsteelbuiltupcolumns AT jiahongwei influenceofgeopolymerfoamconcreteonthemechanicalperformanceofcoldformedsteelbuiltupcolumns AT aihonghan influenceofgeopolymerfoamconcreteonthemechanicalperformanceofcoldformedsteelbuiltupcolumns AT yunxu influenceofgeopolymerfoamconcreteonthemechanicalperformanceofcoldformedsteelbuiltupcolumns AT menghuiqiao influenceofgeopolymerfoamconcreteonthemechanicalperformanceofcoldformedsteelbuiltupcolumns AT dazhihe influenceofgeopolymerfoamconcreteonthemechanicalperformanceofcoldformedsteelbuiltupcolumns |