Study on Clamping Mechanism of Internal and External Variable Diameter Lifting Tool for Offshore Foundation Pile
Large marine foundation piles are an important part of offshore structural pile foundations, and their lifting operations have always been a major problem in the construction and construction of marine structures. Based on IHC’s bilateral marine foundation pile spreader, this paper proposes a struct...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Machines |
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| Online Access: | https://www.mdpi.com/2075-1702/9/1/19 |
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| author | Zhuo Wang Zhuang Li Tao Wang Bo Zhang |
| author_facet | Zhuo Wang Zhuang Li Tao Wang Bo Zhang |
| author_sort | Zhuo Wang |
| collection | DOAJ |
| description | Large marine foundation piles are an important part of offshore structural pile foundations, and their lifting operations have always been a major problem in the construction and construction of marine structures. Based on IHC’s bilateral marine foundation pile spreader, this paper proposes a structural scheme of “internal and external clamping type variable diameter marine foundation pile spreader”. It solves the problem of poor adaptability of spreaders to foundation piles of the same specification and different pipe diameters. At the same time, this article has conducted in-depth research on the two clamping methods of friction clamping and wedge tooth embedded clamping. Through experiments, it is found that under the same lateral load, the load capacity of the wedge teeth tightening is three times that of the friction clamping. Aiming at the embedding and clamping method of the wedge teeth of the spreader, first of all, the influence of the tooth profile angle of the wedge teeth on their embedding performance was studied by the plastic mechanics slip line field theory and Abaqus simulation analysis. Subsequently, the elastic mechanics theory and Abaqus simulation analysis were used to study the stress characteristics of the wedge teeth during the lifting process, and the internal stress distribution was obtained. The article aims to provide a reference for the design of spreaders in actual projects. |
| first_indexed | 2024-03-09T04:31:20Z |
| format | Article |
| id | doaj.art-ec1f0eff35ec450dad3b9164cdf71309 |
| institution | Directory Open Access Journal |
| issn | 2075-1702 |
| language | English |
| last_indexed | 2024-03-09T04:31:20Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Machines |
| spelling | doaj.art-ec1f0eff35ec450dad3b9164cdf713092023-12-03T13:35:23ZengMDPI AGMachines2075-17022021-01-01911910.3390/machines9010019Study on Clamping Mechanism of Internal and External Variable Diameter Lifting Tool for Offshore Foundation PileZhuo Wang0Zhuang Li1Tao Wang2Bo Zhang3College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaSchool of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, ChinaCollege of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaLarge marine foundation piles are an important part of offshore structural pile foundations, and their lifting operations have always been a major problem in the construction and construction of marine structures. Based on IHC’s bilateral marine foundation pile spreader, this paper proposes a structural scheme of “internal and external clamping type variable diameter marine foundation pile spreader”. It solves the problem of poor adaptability of spreaders to foundation piles of the same specification and different pipe diameters. At the same time, this article has conducted in-depth research on the two clamping methods of friction clamping and wedge tooth embedded clamping. Through experiments, it is found that under the same lateral load, the load capacity of the wedge teeth tightening is three times that of the friction clamping. Aiming at the embedding and clamping method of the wedge teeth of the spreader, first of all, the influence of the tooth profile angle of the wedge teeth on their embedding performance was studied by the plastic mechanics slip line field theory and Abaqus simulation analysis. Subsequently, the elastic mechanics theory and Abaqus simulation analysis were used to study the stress characteristics of the wedge teeth during the lifting process, and the internal stress distribution was obtained. The article aims to provide a reference for the design of spreaders in actual projects.https://www.mdpi.com/2075-1702/9/1/19marine foundation pilelarge-scale spreaderclamping and load-bearing mechanismwedge embedding performanceplastic deformation simulation |
| spellingShingle | Zhuo Wang Zhuang Li Tao Wang Bo Zhang Study on Clamping Mechanism of Internal and External Variable Diameter Lifting Tool for Offshore Foundation Pile Machines marine foundation pile large-scale spreader clamping and load-bearing mechanism wedge embedding performance plastic deformation simulation |
| title | Study on Clamping Mechanism of Internal and External Variable Diameter Lifting Tool for Offshore Foundation Pile |
| title_full | Study on Clamping Mechanism of Internal and External Variable Diameter Lifting Tool for Offshore Foundation Pile |
| title_fullStr | Study on Clamping Mechanism of Internal and External Variable Diameter Lifting Tool for Offshore Foundation Pile |
| title_full_unstemmed | Study on Clamping Mechanism of Internal and External Variable Diameter Lifting Tool for Offshore Foundation Pile |
| title_short | Study on Clamping Mechanism of Internal and External Variable Diameter Lifting Tool for Offshore Foundation Pile |
| title_sort | study on clamping mechanism of internal and external variable diameter lifting tool for offshore foundation pile |
| topic | marine foundation pile large-scale spreader clamping and load-bearing mechanism wedge embedding performance plastic deformation simulation |
| url | https://www.mdpi.com/2075-1702/9/1/19 |
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