Lateral response of rigid monopiles subjected to cyclic loading: centrifuge modelling

In this study, a total number of 20 centrifuge tests were carried out to investigate monopile behaviour under lateral cyclic loading. The instrumented model pile simulates an offshore wind turbine foundation with embedment ratio 5 installed in sand layers two relative densities 80% and 50%. influence the directional characteristic amplitude load on was studied. data analysis focused accumulation displacement evolution secant stiffness system. most damaging type (which can cause accumulated displacement) is identified as two-way loading, it observed that always increases stiffness. A new for prediction change has been formulated. An example procedure developed presented typical field subjected Lastly, performance demonstrated predicted results are compared test data.