Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Wind and Structures Volume 21, Number 6, December 2015 , pages 641-656 DOI: https://doi.org/10.12989/was.2015.21.6.641 |
|
|
|
Buckling of monopod bucket foundations—influence of boundary conditions and soil–structure interaction |
||
Soren Madsen, Rodney Pinna, Mark Randolph and Lars V. Andersen
|
||
| Abstract | ||
| Using large monopod bucket foundations as an alternative to monopiles for offshore wind turbines offers the potential for large cost savings compared to typical piled foundations. In this paper, numerical simulations are carried out to assess the risk of structural buckling during installation of large-diameter bucket foundations. Since shell structures are generally sensitive to initially imperfect geometries, eigenmode-affine imperfections are introduced in a nonlinear finite-element analysis. The influence of modelling the real lid structure compared to classic boundary conditions is investigated. The effects of including soil restraint and soil–structure interaction on the buckling analysis are also addressed. | ||
| Key Words | ||
| monopod; bucket foundation; buckling; instability | ||
| Address | ||
| Soren Madsen and Lars V. Andersen: Department of Civil Engineering, Aalborg University, Sofiendalsvej 9-11, DK-9000 Aalborg, Denmark Rodney Pinna: AkerSolutions Pty. Ltd., Perth, Western Australia, Australia Mark Randolph: Centre for Offshore Foundation Systems, The University of Western Australia, 35 Stirling Highway, CRAWLEY WA 6009, Australia | ||