Machine Learning Prediction of the Compressive Bearing Capacity of Concrete-Filled Steel Tubes Using Random Forest.
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| Title: | Machine Learning Prediction of the Compressive Bearing Capacity of Concrete-Filled Steel Tubes Using Random Forest. |
|---|---|
| Authors: | Su, Weidi1,2 (AUTHOR), Cheng, Yaofei1,2,3 (AUTHOR), Wei, Li2,3 (AUTHOR) 2210391066@st.gxu.edu.cn, Zhong, Guangda1,2,4 (AUTHOR), Zhou, Linxiao1,3 (AUTHOR), Liu, Fei2,3,4 (AUTHOR), Xie, Kaizhong2,4 (AUTHOR) |
| Source: | Materials (1996-1944). Jun2026, Vol. 19 Issue 12, p2511. 27p. |
| Subjects: | Random forest algorithms, Compressive strength, Machine learning, Structural engineering, Concrete-filled tubes, Prediction models, Mechanical behavior of materials |
| Abstract: | Highlights: High-precision RF model for CFST capacity using 154 tests and 24 inputs. Steel tube inertia (Is) dominates prediction (35.56% contribution). Validated by nine CFST tests with prediction errors within 5%. Concrete-filled steel tube (CFST) members are widely used in long-span and high-rise structures due to their high load-bearing capacity and structural efficiency. Accurate prediction of their compressive bearing capacity is essential for reliable design. In this study, a data-driven prediction model based on the Random Forest (RF) algorithm was developed using a database of 154 axial compression tests. A total of 24 parameters, including geometric dimensions, material properties, and sectional characteristics, were considered as input variables, and the model was optimized through five-fold cross-validation and hyperparameter tuning. The results indicate that the proposed model achieves high accuracy and stability, with mean predicted-to-experimental ratios of 1.002 and 0.989 for the training and testing sets, respectively, and maximum deviations within 15%. Compared with existing design codes and alternative machine learning methods, the RF model improves prediction accuracy by approximately 9% and exhibits strong generalization capability. Furthermore, independent experimental validation using nine CFST column tests confirms its reliability, with prediction errors within 5%. These findings demonstrate that the proposed model provides an effective and practical tool for predicting the compressive bearing capacity of CFST members in engineering applications. [ABSTRACT FROM AUTHOR] |
| Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 194907585 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Machine Learning Prediction of the Compressive Bearing Capacity of Concrete-Filled Steel Tubes Using Random Forest. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Su%2C+Weidi%22">Su, Weidi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cheng%2C+Yaofei%22">Cheng, Yaofei</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wei%2C+Li%22">Wei, Li</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<i> 2210391066@st.gxu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhong%2C+Guangda%22">Zhong, Guangda</searchLink><relatesTo>1,2,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Linxiao%22">Zhou, Linxiao</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Fei%22">Liu, Fei</searchLink><relatesTo>2,3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xie%2C+Kaizhong%22">Xie, Kaizhong</searchLink><relatesTo>2,4</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Jun2026, Vol. 19 Issue 12, p2511. 27p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Random+forest+algorithms%22">Random forest algorithms</searchLink><br /><searchLink fieldCode="DE" term="%22Compressive+strength%22">Compressive strength</searchLink><br /><searchLink fieldCode="DE" term="%22Machine+learning%22">Machine learning</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+engineering%22">Structural engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Concrete-filled+tubes%22">Concrete-filled tubes</searchLink><br /><searchLink fieldCode="DE" term="%22Prediction+models%22">Prediction models</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Highlights: High-precision RF model for CFST capacity using 154 tests and 24 inputs. Steel tube inertia (Is) dominates prediction (35.56% contribution). Validated by nine CFST tests with prediction errors within 5%. Concrete-filled steel tube (CFST) members are widely used in long-span and high-rise structures due to their high load-bearing capacity and structural efficiency. Accurate prediction of their compressive bearing capacity is essential for reliable design. In this study, a data-driven prediction model based on the Random Forest (RF) algorithm was developed using a database of 154 axial compression tests. A total of 24 parameters, including geometric dimensions, material properties, and sectional characteristics, were considered as input variables, and the model was optimized through five-fold cross-validation and hyperparameter tuning. The results indicate that the proposed model achieves high accuracy and stability, with mean predicted-to-experimental ratios of 1.002 and 0.989 for the training and testing sets, respectively, and maximum deviations within 15%. Compared with existing design codes and alternative machine learning methods, the RF model improves prediction accuracy by approximately 9% and exhibits strong generalization capability. Furthermore, independent experimental validation using nine CFST column tests confirms its reliability, with prediction errors within 5%. These findings demonstrate that the proposed model provides an effective and practical tool for predicting the compressive bearing capacity of CFST members in engineering applications. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/ma19122511 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 27 StartPage: 2511 Subjects: – SubjectFull: Random forest algorithms Type: general – SubjectFull: Compressive strength Type: general – SubjectFull: Machine learning Type: general – SubjectFull: Structural engineering Type: general – SubjectFull: Concrete-filled tubes Type: general – SubjectFull: Prediction models Type: general – SubjectFull: Mechanical behavior of materials Type: general Titles: – TitleFull: Machine Learning Prediction of the Compressive Bearing Capacity of Concrete-Filled Steel Tubes Using Random Forest. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Su, Weidi – PersonEntity: Name: NameFull: Cheng, Yaofei – PersonEntity: Name: NameFull: Wei, Li – PersonEntity: Name: NameFull: Zhong, Guangda – PersonEntity: Name: NameFull: Zhou, Linxiao – PersonEntity: Name: NameFull: Liu, Fei – PersonEntity: Name: NameFull: Xie, Kaizhong IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19961944 Numbering: – Type: volume Value: 19 – Type: issue Value: 12 Titles: – TitleFull: Materials (1996-1944) Type: main |
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