Experimental Study on the Force Mechanism of Internal Composite Connectors in Steel–Concrete Composite Sections of Bridge Towers
Current research on the stress mechanisms of composite connectors within steel–concrete structures of bridge towers is sparse, and there is a lack of established experimental methods and finite element modeling techniques for studying these mechanisms. This study focuses on a specific type of compos...
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MDPI AG
2025-06-01
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| Online Access: | https://www.mdpi.com/2075-5309/15/13/2284 |
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| author | Yunwei Du Zhenqing Yu Yuyang Chen Niujing Ma Ronghui Wang |
| author_facet | Yunwei Du Zhenqing Yu Yuyang Chen Niujing Ma Ronghui Wang |
| author_sort | Yunwei Du |
| collection | DOAJ |
| description | Current research on the stress mechanisms of composite connectors within steel–concrete structures of bridge towers is sparse, and there is a lack of established experimental methods and finite element modeling techniques for studying these mechanisms. This study focuses on a specific type of composite shear connector within the steel–concrete section of the Shunde Bridge tower. By employing proposed experimental methods and finite element model analysis, this research examines the load–slip curves and stress distribution of these shear connectors. It aims to elucidate the stress mechanisms and mechanical relationships between the composite connectors and the individual perforated plate connectors and shear stud connectors that comprise them. The results demonstrate that the proposed experimental methods and finite element modeling approaches effectively analyze the stress mechanisms of composite connectors, revealing that the ultimate load-bearing capacity and elastic stiffness of the composite connectors are approximately the sum of those of the individual connectors configured in parallel; The mechanical performance of the composite connectors in the steel–concrete section of the bridge tower is approximately the additive sum of the mechanical performances of the individual connectors comprising them. By comparing the experimentally measured load–slip curves with those calculated from the finite element models, it validates the modeling approach of the finite element model, and the material parameters established through material characteristic tests and literature review are reasonable. |
| format | Article |
| id | doaj-art-e1949382d53a48da9324632d3b6b7c75 |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
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| series | Buildings |
| spelling | doaj-art-e1949382d53a48da9324632d3b6b7c752025-08-20T03:28:33ZengMDPI AGBuildings2075-53092025-06-011513228410.3390/buildings15132284Experimental Study on the Force Mechanism of Internal Composite Connectors in Steel–Concrete Composite Sections of Bridge TowersYunwei Du0Zhenqing Yu1Yuyang Chen2Niujing Ma3Ronghui Wang4School of Traffic Engineering, Guangzhou Vocational College of Technology & Business, Guangzhou 511442, ChinaPoly Changda Engineering Co., Ltd. Guangzhou 510630, ChinaSchool of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510630, ChinaSchool of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510630, ChinaSchool of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510630, ChinaCurrent research on the stress mechanisms of composite connectors within steel–concrete structures of bridge towers is sparse, and there is a lack of established experimental methods and finite element modeling techniques for studying these mechanisms. This study focuses on a specific type of composite shear connector within the steel–concrete section of the Shunde Bridge tower. By employing proposed experimental methods and finite element model analysis, this research examines the load–slip curves and stress distribution of these shear connectors. It aims to elucidate the stress mechanisms and mechanical relationships between the composite connectors and the individual perforated plate connectors and shear stud connectors that comprise them. The results demonstrate that the proposed experimental methods and finite element modeling approaches effectively analyze the stress mechanisms of composite connectors, revealing that the ultimate load-bearing capacity and elastic stiffness of the composite connectors are approximately the sum of those of the individual connectors configured in parallel; The mechanical performance of the composite connectors in the steel–concrete section of the bridge tower is approximately the additive sum of the mechanical performances of the individual connectors comprising them. By comparing the experimentally measured load–slip curves with those calculated from the finite element models, it validates the modeling approach of the finite element model, and the material parameters established through material characteristic tests and literature review are reasonable.https://www.mdpi.com/2075-5309/15/13/2284single-layer composite connectorsperforated plate connectorshear studpush-out testfinite element modelfailure mode |
| spellingShingle | Yunwei Du Zhenqing Yu Yuyang Chen Niujing Ma Ronghui Wang Experimental Study on the Force Mechanism of Internal Composite Connectors in Steel–Concrete Composite Sections of Bridge Towers Buildings single-layer composite connectors perforated plate connector shear stud push-out test finite element model failure mode |
| title | Experimental Study on the Force Mechanism of Internal Composite Connectors in Steel–Concrete Composite Sections of Bridge Towers |
| title_full | Experimental Study on the Force Mechanism of Internal Composite Connectors in Steel–Concrete Composite Sections of Bridge Towers |
| title_fullStr | Experimental Study on the Force Mechanism of Internal Composite Connectors in Steel–Concrete Composite Sections of Bridge Towers |
| title_full_unstemmed | Experimental Study on the Force Mechanism of Internal Composite Connectors in Steel–Concrete Composite Sections of Bridge Towers |
| title_short | Experimental Study on the Force Mechanism of Internal Composite Connectors in Steel–Concrete Composite Sections of Bridge Towers |
| title_sort | experimental study on the force mechanism of internal composite connectors in steel concrete composite sections of bridge towers |
| topic | single-layer composite connectors perforated plate connector shear stud push-out test finite element model failure mode |
| url | https://www.mdpi.com/2075-5309/15/13/2284 |
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