Division 95 of the Los Angeles City Building Code: "Voluntary Earthquake
Hazard Reduction in Existing Reinforced Concrete Frame Buildings with Masonry
Infills" provides analysis procedures and retrofit standards for seismic zone
4. In addition to a complex general analysis procedure, it includes a
simplified analysis procedure applicable to some buildings, as defined in the
It is included in the 1999 Los Angeles City Supplement to the 1997 UBC,
available from ICBO on their web site (www.icbo.org). Go the product store
and do a search by item number, entering 133A99.