Dear Kan,
I’m not sure I understand your question, but perhaps I’ve answered it in my response to your question in the following forum topic: Foundation Properties of 5 MW Wind Turbine?
You should understand, though, that the OC3-monopile was specified to be representative, not necessarily structurally optimal. In fact, a detailed load-stress calculation was not done in the “design” process of the OC3-monopile.
Best regards,