Cyclic behaviour of laterally loaded (mono)piles in sand: With emphasis on pile driving effects

At the end of 2019, the European Union (EU) put forward the European Green Deal to facilitate the technological progress necessary to achieve CO2-neutrality by 2050. Such a monumental achievement would require massive investments in infrastructure for the harvesting, storage and the transnational transportation of green energy. To date, the more...

Experimental and numerical investigation of the effect of vertical loading on the lateral behaviour of monopiles in sand

The influence of combined loading on the response of monopiles used to support offshore wind turbines (OWTs) is investigated in this paper. In current practice, resistance of monopiles to vertical and lateral loading is considered separately. As OWT size has increased, the slenderness ratio (pile length, L, normalised by diameter, D) has...

Simplified fatigue assessment of offshore wind support structures accounting for variations in a farm

The optimal design and preliminary strength assessment of offshore wind support structures gain growing interest given the potential to drive the costs further down. This study develops a framework for Fatigue Limit State (FLS) estimations of monopiles in a simple and quick manner so as to address site variations in an offshore wind farm (OWF)....

Centrifuge modelling of monopiles in dense sand at The Technical University of Denmark

The pile-soil interaction is of great importance in the design of monopiles supporting offshore wind turbines. Especially the predication of accumulation of rotations, change in stiffness and damping is difficult. The design tools used today cannot in a proper way take the effects from cyclic, lateral loading into account. In order to develop...

Het effect van erosie en grondeigenschappen op het dynamisch gedrag van offshore windturbines betreffende stalen en betonnen monopile funderingen

Voor de opwekking van duurzame energie neemt het aandeel offshore windturbines stelselmatig toe, dit door de vele voordelen ten opzichte van landelijke windturbines. Het principe is overal hetzelfde; in de gondel wordt de mechanische energie wordt omgezet in elektrische energie. Hoe hoger de mast, hoe hoger de energieproductie omdat de...