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Calculation of the Lateral Cyclic Response of Monopiles in Sand

  • Feng Yu
  • Chen-rong Zhang
  • Mao-song Huang
Conference paper

Abstract

Monopiles are widely used to support the upper structures of wind turbines in offshore engineering. Due to the harsh environment conditions, they are subjected to long-term lateral cyclic loading from waves and winds through the design life. In this paper, a robust and practical beam on Winkler foundation model is presented for the behavior of monopiles under cyclic lateral load, in which the stiffness degradation of sand is incorporated based on the accumulated soil strain from results of drained cyclic triaxial tests. The reasonability of the model is proved by comparisons with a published centrifuge model test.

Keywords

Monopiles Axial strain Sand Winkler foundation model Calculating method Cyclic load 

Notes

Acknowledgement

This work is financially supported by the National Natural Science Foundation of China (Grant Nos. 51779175 and 51579177).

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Department of Geotechnical EngineeringTongji UniversityShanghaiChina
  2. 2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of EducationTongji UniversityShanghaiChina

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