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Design of offshore wind power foundation with multi-bucket

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Abstract

Three- and four-bucket offshore wind power foundations with a new form of force-transferring structure are proposed in this paper, and the integrated finite element model of foundation-soil-transition structure is established by using ABAQUS. The carrying capacity of the proposed foundations is studied under vertical load, horizontal load and bending moment. It can be seen that the vertical bearing capacity of multi-bucket foundation can be roughly estimated by the vertical bearing capacity of single-bucket; the horizontal bearing capacity of the three-bucket foundation scheme is controlled by displacement, while that of the four-bucket foundation scheme is controlled by the internal forces of soils. Moreover, the carrying capacity is provided by the overall structure formed by multi-bucket before soil failure. Compared with the conventional single-bucket foundation, there are mainly tension and pressure that are applied to the multi-bucket foundation, so that the carrying capacity of the foundation can be fully utilized. The probability of soil failure can be well reduced with the proposed multi-bucket foundation, and the stress transmission of force-transferring structure is more consistent through steel beams with variable cross-section.

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Authors and Affiliations

  1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300072, China

    Puyang Zhang  (张浦阳) & Hongyan Ding  (丁红岩)

  2. Key Laboratory of Coast Civil Structure Safety, Ministry of Education, Tianjin University, Tianjin, 300072, China

    Puyang Zhang  (张浦阳) & Hongyan Ding  (丁红岩)

  3. School of Civil Engineering, Tianjin University, Tianjin, 300072, China

    Puyang Zhang  (张浦阳), Jianchao Shi  (石建超), Hongyan Ding  (丁红岩) & Yaohua Guo  (郭耀华)

Authors
  1. Puyang Zhang  (张浦阳)
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  2. Jianchao Shi  (石建超)
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  3. Hongyan Ding  (丁红岩)
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  4. Yaohua Guo  (郭耀华)
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Corresponding author

Correspondence to Puyang Zhang  (张浦阳).

Additional information

Supported by the National Natural Science Foundation of China(No. 51309179)and the Tianjin Municipal Natural Science Foundation(No. 14JCQNJC07000).

Zhang Puyang, born in 1978, male, Dr, associate Prof.

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Zhang, P., Shi, J., Ding, H. et al. Design of offshore wind power foundation with multi-bucket. Trans. Tianjin Univ. 22, 502–507 (2016). https://doi.org/10.1007/s12209-016-2631-0

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  • DOI: https://doi.org/10.1007/s12209-016-2631-0

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