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of ASCE 7, unless it is demonstrated that the structural system will provide performance <br /> equivalent to that of a "Detailed," "Intermediate" or "Special" system. <br /> 2. Compliance with ASCE 41 using both BSE -I and BSE -2 earthquake hazard levels and the <br /> corresponding performance levels in Table 3405.2.4.1. <br /> TABLE 3405.2.4.1 <br /> PERFORMANCE CRITERIA FOR CBC LEVEL SEISMIC FORCES <br /> PERFORMANCE LEVEL PERFORMANCE <br /> OCCUPANCY FOR USE WITH LEVEL FOR USE WITH <br /> CATEGORY ASCE 41 BSE -1 ASCE 41 BSE -2 <br /> (BASED ON CBC TABLE EARTHQUAKE EARTHQUAKE <br /> 1604.5) HAZARD LEVEL HAZARD LEVEL <br /> 1 Life Safety (LS) Collapse Prevention (CP) <br /> 11 Life Safety (LS) Collapse Prevention (CP) <br /> 111 Note a Note a <br /> IV Immediate Occupancy (10) Life Safety (LS) <br /> a. Acceptance criteria for Occupancy Category 111 shall be taken as 80 percent of the acceptance <br /> criteria specified for Occupancy Category!! performance levels, but need not be less than the <br /> acceptance criteria specified for Occupancy Category IV performance levels. <br /> 3405.2.4.2 Compliance with reduced CBC level seismic forces. Where seismic evaluation and design is <br /> permitted to meet reduced California Building Code seismic force levels, the procedures used shall be <br /> in accordance with one of the following: <br /> 1. The California Building Code using 75 percent of the prescribed forces. Values of R, O., <br /> and Cd used for analysis shall be as specified in Section 3405.2.4.1 Item 1. <br /> 2. Structures or portions of structures that comply with the requirements of the applicable <br /> chapter in Appendix A of the International Existing Building Code as specified in Items 2.1 <br /> through 2.5 below shall be deemed to comply with this section. <br /> 2.1. The seismic evaluation and design of unreinforced masonry bearing wall buildings in <br /> Occupancy Category 1 or 11 are permitted to be based on the procedures specified in <br /> Appendix Chapter A1. <br /> 2.2. Seismic evaluation and design of the wall anchorage system in reinforced concrete and <br /> reinforced masonry wall buildings with flexible diaphragms in Occupancy Category I or <br /> 11 are permitted to be based on the procedures specified in Appendix Chapter A2. <br /> ORDINANCE NO. 2010 -013 30 <br />