How do I rotate for 90 degrees a corridor object?

Hello,

i would like to rotate a piece of collidor (see the screenshot below) with an effect that the peice of corridor turn smoothly.

So the initial if like this :

And the final position i would like is this:

It seems complicated cause i need to change the angle and the position with a smoothly effect of platform rotatink, i tried with the sine and rotate behavior but it doesn"t exatly what i want.

Can you give me some clues or advices?