Offshore structures

My final year dissertation is on the design of offshore platforms, and after some research I just can't find out whether or not the super-structure is designed to eurocodes steel and concrete.

Do engineers use a separate code of practice for the design of these structures?

Thanks in advance

I'm assuming you're referring to oil platforms? And by superstructure you mean the topsides?

If so, I would imagine that either Eurocode or AISC is used, as that's what's used in subsea and I would be surprised if there was some other code that was used for topsides.

Thanks

Thought that due to very high wind loads, it would be inappropriate to use both AISC or Eurocodes.

Is there a specific eurocode for subsea engineering, since eurocodes 1-6 covers all the general construction materials?

No specific Eurocode for subsea, EN 1993-1-1 for members and EN1 993-1-8 for joints is what is used when the client wants Eurocode, or AISC 360-10 when they want AISC.

API RP 2A might also be worth a look if you can get your hands on it, as might ISO 19902. DNV codes are usually available for free on the internet from their website if there is anything of interest there.