Abstract
The stiffness of the soil-foundation system is an important parameter that is taken into account in design. Recent studies of offshore wind turbines have shown that long-term cyclic lateral loading, induced by waves and wind, may lead to an increase in the foundation stiffness during the lifetime of the foundation. This is in contrast to design methods proposed by current guidelines. The present paper represents a further step towards improving the general knowledge regarding such stiffness change issues. Test results from an experimental investigation are presented and discussed. The interpretation focuses on the stiffness variation of a small-scale monopile in dense saturated sand during cyclic tests of approximately 50,000 load cycles.
| Original language | English |
|---|---|
| Journal | Journal of Ocean and Wind Energy |
| Volume | 3 |
| Issue number | 1 |
| Pages (from-to) | 31-36 |
| Number of pages | 6 |
| ISSN | 2310-3604 |
| DOIs | |
| Publication status | Published - 2016 |
Keywords
- Soil-foundation system
- Offshore Wind Turbines
- Long-term cyclic lateral loading