Struijk struck the decisive penalty to win the shootout 4-2 after the scores had finished 2-2 after extra-time.
“I said before the game it will be a massive, massive win if we won today” the defender began.
“To come down to penalties all the way after a big shift and they did well to come back but very happy for us, very happy for the fans. It is an amazing challenge to go now to Wembley and see what we can do there."
On the shootout, Struijk added: “We were well drilled, from the beginning we knew what to do. I think the team showed real composure, especially in the moments where it was tough and they put the pressure on but I think we were really good.
“Then to see all the penalties, and I have to give a little mention to Luca (Perri). He was amazing today as well!”
On facing Chelsea in the semits, Struijk said: “If you look at the league, I think we have two good results against Chelsea, so, I do not want to say anything really, but hopefully we can do it the third time.
“After our last experience at Wembley, we want to make a better one. When we go there, we will try and do our best to get good memories.”