Playground equipment foundation 2

[m_struct]

I am designing the foundation for a timber constructed playground. It is an ocean front site. The challenges are corroion and rotting. There are two conditions - 6x6 timber posts and approximately 12" diameter log posts. Both require fixed base connections. The concrete will be embedded a few feet into the ground. Few option were looked at:
- Timber post embedded into concrete (risk of rotting?)
- A fixed base shoe connection such as the Simpson moment post base (MPBZ does not meet the corrosion requirements). Even if corrosion requirements are met, not sure teh architect will go with it.
- Stainless steel cruciform fixing embedded in concrete foundation and fixed to base of log with 4 bolts each face. Expensive. Works for the 12" diameter log but too big for the 6x6 post.

Any suggestions? It is supposed to be 50 year design life.

 

[phamENG]

Thanks, Daywalker. CarlB posted that yesterday. Perhaps "couldn't" was the wrong word. I found the one I posted, and stopped looking.

 

[XR250]

Maybe this as an option....?

https://polebarnsdirect.com/options/foundation-options/

 

[m_struct]

Yes - cruciform, not crucible