Research on the Axial Compression Performance of Double C-Section Partially Encased Composite Columns.
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| Title: | Research on the Axial Compression Performance of Double C-Section Partially Encased Composite Columns. |
|---|---|
| Authors: | Zhou, Ming1 (AUTHOR), Qin, Linglin1,2 (AUTHOR), Wen, Xiaodong1 (AUTHOR) wenxiaodong0420@163.com, Wang, Feifan1,2 (AUTHOR), Weng, Gongwei2 (AUTHOR) |
| Source: | Materials (1996-1944). May2026, Vol. 19 Issue 10, p1931. 28p. |
| Subjects: | Cold-formed steel, Compression loads, Axial stresses, Iron & steel columns, Finite element method |
| Abstract: | To investigate the axial compressive behavior of double C-section partially encased composite (DCPEC) columns, 10 DCPEC specimens and two back-to-back bare steel C-section specimens were designed and tested under axial compression. The effects of key parameters, including steel wall thickness, member slenderness ratio, connection type of the built-up double C-sections and connection density, on the failure mode, load–displacement response and ultimate load-carrying capacity were examined. The test results showed that, under otherwise identical conditions, the ultimate load of the bolted stub column was 8.4% higher than that of the welded stub column. When the steel wall thickness increased from 2.0 mm to 3.0 mm, the ultimate load increased by approximately 16%. In contrast, when the slenderness ratio increased from 25.98 to 41.57, the ultimate load decreased by approximately 30%. A finite element model was then established in ABAQUS and validated against the experimental results. The numerical analysis further confirmed that increasing the slenderness ratio reduced the axial load-carrying capacity, whereas increasing the steel wall thickness improved the resistance of the member. The results indicate that the proposed DCPEC column can effectively develop the composite action between cold-formed thin-walled steel and lightweight aggregate concrete, thereby improving axial resistance and showing promising potential for 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: 194116767 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Research on the Axial Compression Performance of Double C-Section Partially Encased Composite Columns. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhou%2C+Ming%22">Zhou, Ming</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Qin%2C+Linglin%22">Qin, Linglin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wen%2C+Xiaodong%22">Wen, Xiaodong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> wenxiaodong0420@163.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Feifan%22">Wang, Feifan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Weng%2C+Gongwei%22">Weng, Gongwei</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. May2026, Vol. 19 Issue 10, p1931. 28p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Cold-formed+steel%22">Cold-formed steel</searchLink><br /><searchLink fieldCode="DE" term="%22Compression+loads%22">Compression loads</searchLink><br /><searchLink fieldCode="DE" term="%22Axial+stresses%22">Axial stresses</searchLink><br /><searchLink fieldCode="DE" term="%22Iron+%26+steel+columns%22">Iron & steel columns</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: To investigate the axial compressive behavior of double C-section partially encased composite (DCPEC) columns, 10 DCPEC specimens and two back-to-back bare steel C-section specimens were designed and tested under axial compression. The effects of key parameters, including steel wall thickness, member slenderness ratio, connection type of the built-up double C-sections and connection density, on the failure mode, load–displacement response and ultimate load-carrying capacity were examined. The test results showed that, under otherwise identical conditions, the ultimate load of the bolted stub column was 8.4% higher than that of the welded stub column. When the steel wall thickness increased from 2.0 mm to 3.0 mm, the ultimate load increased by approximately 16%. In contrast, when the slenderness ratio increased from 25.98 to 41.57, the ultimate load decreased by approximately 30%. A finite element model was then established in ABAQUS and validated against the experimental results. The numerical analysis further confirmed that increasing the slenderness ratio reduced the axial load-carrying capacity, whereas increasing the steel wall thickness improved the resistance of the member. The results indicate that the proposed DCPEC column can effectively develop the composite action between cold-formed thin-walled steel and lightweight aggregate concrete, thereby improving axial resistance and showing promising potential for 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.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=194116767 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/ma19101931 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 28 StartPage: 1931 Subjects: – SubjectFull: Cold-formed steel Type: general – SubjectFull: Compression loads Type: general – SubjectFull: Axial stresses Type: general – SubjectFull: Iron & steel columns Type: general – SubjectFull: Finite element method Type: general Titles: – TitleFull: Research on the Axial Compression Performance of Double C-Section Partially Encased Composite Columns. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhou, Ming – PersonEntity: Name: NameFull: Qin, Linglin – PersonEntity: Name: NameFull: Wen, Xiaodong – PersonEntity: Name: NameFull: Wang, Feifan – PersonEntity: Name: NameFull: Weng, Gongwei IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19961944 Numbering: – Type: volume Value: 19 – Type: issue Value: 10 Titles: – TitleFull: Materials (1996-1944) Type: main |
| ResultId | 1 |
