Splitting a building into two risk categories 6

[ggcdn]

Does anyone know of any examples or references that describe buildings with dual risk categories?

We are doing a performance-based seismic design in California, and would like to propose splitting the project into two risk categories because of the different usage and structural configuration (typical residential tower above, larger office podium below).

I know of one case where this has been done for multiple towers landing on a common podium structure. Any other references or past precedent would help our case.

Thanks,

 

[sandman21]

Well, you win some, lose some.

 

[KootK]

Interesting, thanks for reporting back with the result. Did the city explain their rationale at all?

I wonder if the review panel has any liability exposure in these kind of situations. I could see one developer getting annoyed that their prospectus might take a hit relative to the project down the road on, seemingly, a whim. Hopefully the review panel is shielded from this kind of exposure as agencies serving the public interest often are.