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ORDINANCE NO. NS-15{8~ Page Five EXCEPTION: Unreinforced masonry walls in buildings not having a rating classification of I may be analyzed in accordance with Section 8-2006. C. ANCHORAGE AND INTERCONNECTION. Anchorage and interconnection of all parts, portions and elements of the structure shall be analyzed and designed for lateral forces in accordance with the equation F~ = IC~SW~ as modified by Table C. Minimum anchorage of masonry ~al{s to each floor or roof shall resist a minimum force of 200 pounds per lineal foot acting normal to the wall at the level of the floor or roof. TABLE C HORIZONTAL FORCE FACTORS "IS" FOR PARTS OR PORTIONS OF STRUCTURES RATING CLASSIFICATION IS I 1.50 II 1.00 III & IV 0.75 D. LEVEL OF REQUIRED REPAIR. Alterations and repairs required to meet the provisions of this Article shall comply with all other applicable requirements of this Code unless specifically excluded elsewhere in this Article. E. REQUIRED ANALYSIS. 1. CONTINUOUS STRESS PATH. A complete, continuous stress path from every part or portion of the structure to the ground shall be provided for the required horizontal forces. 2. POSITIVE CONNECTIONS. Ail parts, portions or elements of the structure shall be interconnected by positive means. F. ANALYSIS PROCEDURE. (1) GENERAL. Stresses in materials and existing construction utilized to transfer seismic forces from the ground to parts or portions of the structure shall conform to those permitted by the Uniform Building Code and those materials and types of construction specified in Section 8-2006. (2) CONNECTIONS. Materials and connectors used for interconnection of parts and portions of the structure shall conform to the Uniform Building Code. (3) UNREINFORCED MASONRY WALLS. Unreinforced masonry walls shall be analyzed to insure their capability of resisting superimposed vertical loads in addition to the seismic forces required by this Article. Allowable stresses in such walls shall be obtained by tests utilizing values established by laboratory testing as specified in Section 8-2006E. However, no allowable tension stress will be permitted. Walls not capable of resisisting the applied loads shall be strengthened to resist the forces specified in this Article or shall be removed and replaced.