Bending behavior and influence parameter optimization of connection joints of disc-buckle type formwork support
Abstract In order to systematically study the bending behavior of the connection joints of the disc-buckle type formwork support, the accurate numerical model of the disc-buckle type connection joints was obtained through the experimental on the bending behavior of the connection joints of the disc-...
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Nature Portfolio
2025-01-01
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| Online Access: | https://doi.org/10.1038/s41598-025-85850-1 |
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| author | Jinfeng Dong Zelong Liao Haiqing Liu Zhongwei Zhao Ming Lei Zimu Chen Liang Wang Xiangen Gong |
| author_facet | Jinfeng Dong Zelong Liao Haiqing Liu Zhongwei Zhao Ming Lei Zimu Chen Liang Wang Xiangen Gong |
| author_sort | Jinfeng Dong |
| collection | DOAJ |
| description | Abstract In order to systematically study the bending behavior of the connection joints of the disc-buckle type formwork support, the accurate numerical model of the disc-buckle type connection joints was obtained through the experimental on the bending behavior of the connection joints of the disc-buckle type, and the bending moment-rotation curve of the joints was verified. The analysis of the failure mode and stress distribution of the joints reveals the importance of the bending behavior of each component. By establishing an accurate numerical model of the joint, the accuracy of the bending experiment of the joint was verified, and the parametric analysis of the influence factors such as the depth of the wedge insertion the disk-plate, the initial position of the wedge insertion the disk-plate, the thickness of the wedge, material constitutive of the wedge and the thickness of the disk-plate was carried out to grasp the influence of the relevant parameters on the bending behavior of the joint. The results shown that the connection joints of the disc-buckle type formwork support were a typical semi-rigid connection joints. The thickness of the disk-plate plays a decisive role in the joint bending capacity, and the optimum thickness of the disk-plate was 10 mm. The thickness of the wedge was proportional to the joint bending capacity, and the optimal thickness of the wedge was 7 mm. The drop depth of the wedge should not exceed 6 mm during the locking process and the most suitable yield strength of the wedge was set to 450–500 MPa. |
| format | Article |
| id | doaj-art-37023249a85e4751b58392178f491e07 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-37023249a85e4751b58392178f491e072025-01-19T12:20:47ZengNature PortfolioScientific Reports2045-23222025-01-0115111710.1038/s41598-025-85850-1Bending behavior and influence parameter optimization of connection joints of disc-buckle type formwork supportJinfeng Dong0Zelong Liao1Haiqing Liu2Zhongwei Zhao3Ming Lei4Zimu Chen5Liang Wang6Xiangen Gong7School of Civil Engineering, Liaoning Technical UniversitySchool of Civil Engineering, Liaoning Technical UniversitySchool of Civil Engineering, Liaoning Technical UniversitySchool of Civil Engineering, Liaoning Technical UniversityChina Construction Fifth Engineering Division Corp., Ltd.China Construction Fifth Engineering Division Corp., Ltd.China Construction Fifth Engineering Division Corp., Ltd.China Construction Fifth Engineering Division Corp., Ltd.Abstract In order to systematically study the bending behavior of the connection joints of the disc-buckle type formwork support, the accurate numerical model of the disc-buckle type connection joints was obtained through the experimental on the bending behavior of the connection joints of the disc-buckle type, and the bending moment-rotation curve of the joints was verified. The analysis of the failure mode and stress distribution of the joints reveals the importance of the bending behavior of each component. By establishing an accurate numerical model of the joint, the accuracy of the bending experiment of the joint was verified, and the parametric analysis of the influence factors such as the depth of the wedge insertion the disk-plate, the initial position of the wedge insertion the disk-plate, the thickness of the wedge, material constitutive of the wedge and the thickness of the disk-plate was carried out to grasp the influence of the relevant parameters on the bending behavior of the joint. The results shown that the connection joints of the disc-buckle type formwork support were a typical semi-rigid connection joints. The thickness of the disk-plate plays a decisive role in the joint bending capacity, and the optimum thickness of the disk-plate was 10 mm. The thickness of the wedge was proportional to the joint bending capacity, and the optimal thickness of the wedge was 7 mm. The drop depth of the wedge should not exceed 6 mm during the locking process and the most suitable yield strength of the wedge was set to 450–500 MPa.https://doi.org/10.1038/s41598-025-85850-1Semi-rigid connection jointsDisc-buckle type coupler high formwork support systemBending behaviorStress distributionFinite element parametric analysis |
| spellingShingle | Jinfeng Dong Zelong Liao Haiqing Liu Zhongwei Zhao Ming Lei Zimu Chen Liang Wang Xiangen Gong Bending behavior and influence parameter optimization of connection joints of disc-buckle type formwork support Scientific Reports Semi-rigid connection joints Disc-buckle type coupler high formwork support system Bending behavior Stress distribution Finite element parametric analysis |
| title | Bending behavior and influence parameter optimization of connection joints of disc-buckle type formwork support |
| title_full | Bending behavior and influence parameter optimization of connection joints of disc-buckle type formwork support |
| title_fullStr | Bending behavior and influence parameter optimization of connection joints of disc-buckle type formwork support |
| title_full_unstemmed | Bending behavior and influence parameter optimization of connection joints of disc-buckle type formwork support |
| title_short | Bending behavior and influence parameter optimization of connection joints of disc-buckle type formwork support |
| title_sort | bending behavior and influence parameter optimization of connection joints of disc buckle type formwork support |
| topic | Semi-rigid connection joints Disc-buckle type coupler high formwork support system Bending behavior Stress distribution Finite element parametric analysis |
| url | https://doi.org/10.1038/s41598-025-85850-1 |
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