Help me with the physics

I'm curious what forces the Sea-Launch platform has to endure?

What is the force from the Zenit?

Is it directed onto the platform, or diverted into blast channels?

In both situations, how does it effect the bouyancy and stability of
the platform?

Do you think there is a limit to scaling? For instance, could a
Delta or Atlas or shuttle be launched for an appropriately designed
platform?

While I'm on the topic, for land launches, how much blast damage is
done to the concrete pads and the scaffolding during a launch?

Thanks for your help.

TangoMan