A study on the buckling characteristics of single-column composite bucket foundation for offshore wind turbine
In order to deepen the research on the buckling characteristics of offshore wind power single column composite tube foundation,taking the buckling characteristics of single-column composite bucket foundation for offshore wind turbine as the research object,the single-column composite bucket foundation structure for offshore wind turbine is established using ABAQUS.The buckling characteristic values and buckling deformation distribution changes of the three structure models under different sinking depths and diameter-height ratios are analyzed by the linear buckling calculation method.It considers initial defects and uses nonlinear buckling calculation methods to derive actual buckling values of the engineering project,which can provide a reference for the engineering design.The results show that the sinking depth,the ratio of diameter to height and the initial defect have different effects on the negative pressure value of circumferential buckling of single-column composite bucket foundation for offshore wind turbine.At larger diameter-height ratios,buckling is less affected by the initial defect,and the value of buckling stress of the structure increases with the sinking depth.The U.S.Navy test flume formula was modified to obtain a fitting formula applicable to predicting the circumferential buckling values of the structure at different sinking depths.
万方数据
维普
