Test and Finite Element Analysis of a New Type of Double-Limb Double-Plate Connection Joint in Narrow Base Tower
The connection between the leg members and diagonal members of the urban transmission line tower is mostly in the form of single-limb connection. This paper puts forward a new connection form of pipe double-limb double-plate connection joint, which is based on the model of key joints in an urban nar...
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| Format: | Article |
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MDPI AG
2021-10-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/20/5936 |
| _version_ | 1797514061361971200 |
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| author | Hong Yan Xianze Nie Lei Zhang Feng Yang Mojia Huang Tengfei Zhao |
| author_facet | Hong Yan Xianze Nie Lei Zhang Feng Yang Mojia Huang Tengfei Zhao |
| author_sort | Hong Yan |
| collection | DOAJ |
| description | The connection between the leg members and diagonal members of the urban transmission line tower is mostly in the form of single-limb connection. This paper puts forward a new connection form of pipe double-limb double-plate connection joint, which is based on the model of key joints in an urban narrow base tower structure. The traditional pipe single-limb single-plate and new pipe double-limb double-plate joint are analyzed and studied from three aspects of theory, numerical simulation and experimental study. Through finite element analysis, it is obtained that the section stress of angle steel under eccentric load is 2.05 times of that under axial load, which is basically consistent with the 2.5 times of the theoretical calculation. This shows that the stress of the angle steel in the pipe double-limb double-plate joint is greatly reduced as the axial stress component, which can ensure the safety of the angle steel. Based on the theoretical analysis of the tensile force of two kinds of joints, through the test research and corresponding numerical simulation of pipe single-limb single-plate and pipe double-limb double-plate joints, under the same load, compared with pipe single-limb single-plate joints, the pipe double-limb double-plate joints designed in this paper can greatly reduce the stress of connection plates and members, and compared with the existing joint forms, the bending stress of joint plates can be reduced by about four times, which greatly improves the bearing capacity of the joint. The research on the pipe double-limb double-plate connection joint will provide the basis for the design of new connection joints of narrow base towers in urban areas. |
| first_indexed | 2024-03-10T06:26:18Z |
| format | Article |
| id | doaj.art-bdccf7b1aaaa4f4e8081545cd27037c0 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T06:26:18Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-bdccf7b1aaaa4f4e8081545cd27037c02023-11-22T18:56:17ZengMDPI AGMaterials1996-19442021-10-011420593610.3390/ma14205936Test and Finite Element Analysis of a New Type of Double-Limb Double-Plate Connection Joint in Narrow Base TowerHong Yan0Xianze Nie1Lei Zhang2Feng Yang3Mojia Huang4Tengfei Zhao5Institute of Engineering Mechanics, Nanchang University, Nanchang 330031, ChinaChina Nerin Engineering Co., Ltd., Nanchang 330031, ChinaCollege of Architectural Engineering and Planning, Jiujiang University, Jiujiang 332005, ChinaSchool of Civil and Architecture Engineering, East China University of Technology, Nanchang 330013, ChinaInstitute of Engineering Mechanics, Nanchang University, Nanchang 330031, ChinaInstitute of Engineering Mechanics, Nanchang University, Nanchang 330031, ChinaThe connection between the leg members and diagonal members of the urban transmission line tower is mostly in the form of single-limb connection. This paper puts forward a new connection form of pipe double-limb double-plate connection joint, which is based on the model of key joints in an urban narrow base tower structure. The traditional pipe single-limb single-plate and new pipe double-limb double-plate joint are analyzed and studied from three aspects of theory, numerical simulation and experimental study. Through finite element analysis, it is obtained that the section stress of angle steel under eccentric load is 2.05 times of that under axial load, which is basically consistent with the 2.5 times of the theoretical calculation. This shows that the stress of the angle steel in the pipe double-limb double-plate joint is greatly reduced as the axial stress component, which can ensure the safety of the angle steel. Based on the theoretical analysis of the tensile force of two kinds of joints, through the test research and corresponding numerical simulation of pipe single-limb single-plate and pipe double-limb double-plate joints, under the same load, compared with pipe single-limb single-plate joints, the pipe double-limb double-plate joints designed in this paper can greatly reduce the stress of connection plates and members, and compared with the existing joint forms, the bending stress of joint plates can be reduced by about four times, which greatly improves the bearing capacity of the joint. The research on the pipe double-limb double-plate connection joint will provide the basis for the design of new connection joints of narrow base towers in urban areas.https://www.mdpi.com/1996-1944/14/20/5936joint platecarrying capacitybending stressnumerical simulationpipe double-limb double-plate joint |
| spellingShingle | Hong Yan Xianze Nie Lei Zhang Feng Yang Mojia Huang Tengfei Zhao Test and Finite Element Analysis of a New Type of Double-Limb Double-Plate Connection Joint in Narrow Base Tower Materials joint plate carrying capacity bending stress numerical simulation pipe double-limb double-plate joint |
| title | Test and Finite Element Analysis of a New Type of Double-Limb Double-Plate Connection Joint in Narrow Base Tower |
| title_full | Test and Finite Element Analysis of a New Type of Double-Limb Double-Plate Connection Joint in Narrow Base Tower |
| title_fullStr | Test and Finite Element Analysis of a New Type of Double-Limb Double-Plate Connection Joint in Narrow Base Tower |
| title_full_unstemmed | Test and Finite Element Analysis of a New Type of Double-Limb Double-Plate Connection Joint in Narrow Base Tower |
| title_short | Test and Finite Element Analysis of a New Type of Double-Limb Double-Plate Connection Joint in Narrow Base Tower |
| title_sort | test and finite element analysis of a new type of double limb double plate connection joint in narrow base tower |
| topic | joint plate carrying capacity bending stress numerical simulation pipe double-limb double-plate joint |
| url | https://www.mdpi.com/1996-1944/14/20/5936 |
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