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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 -1 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 />a. Acceptance criteria for Occupancy Category III shall be taken as 80 percent of the acceptance <br />criteria specified for Occupancy Category II performance levels, but need not be less than the <br />acceptance criteria specified for Occupancy Category W 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, Q,,, <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 I or II 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 />I1 are permitted to be based on the procedures specified in Appendix Chapter A2. <br />ORDINANCE NO. 2010-013 30 <br />PERFORMANCE LEVEL <br />PERFORMANCE <br />OCCUPANCY <br />FOR USE WITH <br />LEVEL FOR USE WITH <br />CATEGORY <br />ASCE 41 BSE -1 <br />ASCE 41 BSE -2 <br />(BASED ON CBC TABLE <br />EARTHQUAKE <br />EARTHQUAKE <br />1604.5) <br />HAZARD LEVEL <br />HAZARD LEVEL <br />I <br />Life Safety (LS) <br />Collapse Prevention (CP) <br />11 <br />Life Safety (LS) <br />Collapse Prevention (CP) <br />III <br />Note a <br />Note a <br />IV <br />Immediate Occupancy (IO) <br />Life Safety (LS) <br />a. Acceptance criteria for Occupancy Category III shall be taken as 80 percent of the acceptance <br />criteria specified for Occupancy Category II performance levels, but need not be less than the <br />acceptance criteria specified for Occupancy Category W 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, Q,,, <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 I or II 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 />I1 are permitted to be based on the procedures specified in Appendix Chapter A2. <br />ORDINANCE NO. 2010-013 30 <br />