Re: Difference between SCBF OCBF

Unless the jurisdiction specifically states that you must use SCBF for an essential facility, it appears that you could use either.  Remember that the R values are dramatically different, as are the Cd deflection amplification factors for either system.  Also, check IBC 1613.5.6, based on the site spectral acceleration values.

On Jan 11, 2008 9:21 AM, Sandman <sandman21@gmail.com> wrote:

I am currently working on the design of a building with an Occupancy category of IV in the Southern California area.   The building meets the requirements for OCBF Seismic Design Cat. D and is under 35'.  I was wondering if there are any other requirements, since the building is an essential facility, which would require me to use SCBF?

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David Topete, SE