Model Test Study on Bearing Capacity and Deformation Characteristics of Symmetric Pile–Bucket Foundation Subjected to Cyclic Horizontal Load
The pile–bucket foundation that features a bucket slipped onto a monopile is a new type of symmetric offshore foundation supporting the wind turbine. Its load bearing and deformation resistance capacity are unclear, especially when subjected to cyclic horizontal loadings. In this paper, a model test...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Symmetry |
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| Online Access: | https://www.mdpi.com/2073-8994/13/9/1647 |
| _version_ | 1797517109459156992 |
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| author | Zunan Fu Guoshuai Wang Yanming Yu Li Shi |
| author_facet | Zunan Fu Guoshuai Wang Yanming Yu Li Shi |
| author_sort | Zunan Fu |
| collection | DOAJ |
| description | The pile–bucket foundation that features a bucket slipped onto a monopile is a new type of symmetric offshore foundation supporting the wind turbine. Its load bearing and deformation resistance capacity are unclear, especially when subjected to cyclic horizontal loadings. In this paper, a model test has been designed and carried out for investigating the cyclic behavior of the pile–bucket foundation embedded in soft marine clay. Cyclic horizontal loads are applied in a displacement-controlled manner with different amplitudes and frequencies. The influences of cyclic loading parameters, including the amplitude, the frequency and the cycle number, have been studied from the perspectives of stiffness-degradation and damping effect that are evaluated from the recorded horizontal force–displacement relationships at the loading point. In addition, the influences of cyclic horizontal loading on the bending moment distribution and on the <i>p</i>–<i>y</i> curve have been presented and discussed. The results show that significant reductions in the foundation stiffness and in the soil resistance may be observed during the first few cycles when the loading displacement is relatively high. |
| first_indexed | 2024-03-10T07:10:14Z |
| format | Article |
| id | doaj.art-088c2996f3704d11a773904e0260c1e2 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-10T07:10:14Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-088c2996f3704d11a773904e0260c1e22023-11-22T15:27:54ZengMDPI AGSymmetry2073-89942021-09-01139164710.3390/sym13091647Model Test Study on Bearing Capacity and Deformation Characteristics of Symmetric Pile–Bucket Foundation Subjected to Cyclic Horizontal LoadZunan Fu0Guoshuai Wang1Yanming Yu2Li Shi3Huadong Engineering Corporation Limited, Hangzhou 311122, ChinaHuadong Engineering Corporation Limited, Hangzhou 311122, ChinaHuadong Engineering Corporation Limited, Hangzhou 311122, ChinaCollege of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaThe pile–bucket foundation that features a bucket slipped onto a monopile is a new type of symmetric offshore foundation supporting the wind turbine. Its load bearing and deformation resistance capacity are unclear, especially when subjected to cyclic horizontal loadings. In this paper, a model test has been designed and carried out for investigating the cyclic behavior of the pile–bucket foundation embedded in soft marine clay. Cyclic horizontal loads are applied in a displacement-controlled manner with different amplitudes and frequencies. The influences of cyclic loading parameters, including the amplitude, the frequency and the cycle number, have been studied from the perspectives of stiffness-degradation and damping effect that are evaluated from the recorded horizontal force–displacement relationships at the loading point. In addition, the influences of cyclic horizontal loading on the bending moment distribution and on the <i>p</i>–<i>y</i> curve have been presented and discussed. The results show that significant reductions in the foundation stiffness and in the soil resistance may be observed during the first few cycles when the loading displacement is relatively high.https://www.mdpi.com/2073-8994/13/9/1647pile–bucket foundationmodel testhorizontal cyclic loadingsecant stiffnesssoil resistance |
| spellingShingle | Zunan Fu Guoshuai Wang Yanming Yu Li Shi Model Test Study on Bearing Capacity and Deformation Characteristics of Symmetric Pile–Bucket Foundation Subjected to Cyclic Horizontal Load Symmetry pile–bucket foundation model test horizontal cyclic loading secant stiffness soil resistance |
| title | Model Test Study on Bearing Capacity and Deformation Characteristics of Symmetric Pile–Bucket Foundation Subjected to Cyclic Horizontal Load |
| title_full | Model Test Study on Bearing Capacity and Deformation Characteristics of Symmetric Pile–Bucket Foundation Subjected to Cyclic Horizontal Load |
| title_fullStr | Model Test Study on Bearing Capacity and Deformation Characteristics of Symmetric Pile–Bucket Foundation Subjected to Cyclic Horizontal Load |
| title_full_unstemmed | Model Test Study on Bearing Capacity and Deformation Characteristics of Symmetric Pile–Bucket Foundation Subjected to Cyclic Horizontal Load |
| title_short | Model Test Study on Bearing Capacity and Deformation Characteristics of Symmetric Pile–Bucket Foundation Subjected to Cyclic Horizontal Load |
| title_sort | model test study on bearing capacity and deformation characteristics of symmetric pile bucket foundation subjected to cyclic horizontal load |
| topic | pile–bucket foundation model test horizontal cyclic loading secant stiffness soil resistance |
| url | https://www.mdpi.com/2073-8994/13/9/1647 |
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