ABSTRACT
The guidelines for the design of OWPP foundations published by the certifier Germanischer Lloyd (2005) demand an investigation of both, the short-term and the long-term soil-structure interaction under cyclic loading. However, the methods and the extent of such investigations are not further specified. It is stated that neither a theory nor established investigation methods exist with respect to the long-term behaviour. It is recommended to utilize experience from similar projects in the past, which are missing in the case of the new OWPPs.As a possible approach the adherence of given maximum deflections under a static equivalent load is mentioned but judged as possibly non-conservative.
