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ORDINANCE NO. NS- 1598 <br />Page Six <br /> <br /> TABLE C <br /> HORIZONTAL FORCE FACTORS "IS" <br />FOR PARTS OR PORTIONS OF STRUCTURES <br /> <br />RATING <br />CLASSIFICATION IS <br /> <br />I 1.50 <br />II 1.00 <br />III & IV 0.75 <br /> <br /> (d) LEVEL OF REQUIRED REPAIR. Alterations and repairs <br />required to meet the provisions of this article shall comply <br />with all other applicable requirments of this Code unless <br />specifically excluded elsewhere in this article. <br /> <br />(e) REQUIRED ANALYSIS. <br /> <br /> 1. CONTINUOUS STRESS PATH. A complete, continuous <br />stress path from every part or portion of the structure to <br />the ground shall be provided for the required horizontal <br />forces. <br /> <br /> 2. POSITIVE CONNECTIONS. Ail parts, portions or <br />elements of the structure shall be interconnected by positive <br />means. <br /> <br />(f) ANALYSIS PROCEDURE. <br /> <br /> (1) GENERAL. Stresses in materials and existing <br />construction utilized to transfer seismic forces from the <br />ground to parts or portions of the structure shall conform <br />to those permitted by the Uniform Building Code and those <br />materials and types of construction specified in Section <br />8-2006. <br /> <br /> (2) CONNECTIONS. Materials and connectors used <br />for interconnection of parts and portions of the structure <br />shall conform to the Uniform Building Code. <br /> <br /> (3) UNREINFORCED MASONRY WALLS. Unreinforced <br />masonry walls shall be analyzed to insure their capability <br />of resisting superimposed vertical loads in addition to the <br />seismic forces required by this Article. <br /> <br /> Allowable stresses in such walls shall be obtained <br />by tests utilizing values established by laboratory testing <br />as specified in subsection (e) of Section 8-2006. However, <br />no allowable tension stress will be permitted. Walls not <br />capable of resisting the applied loads shall be strengthened <br />to resist the forces specified in this article or shall be <br />removed and replaced. <br /> <br />EXCEPTIONS: <br /> <br /> 1. Unreinforced masonry walls in buildings not <br />classified as a Classification Rating I may be analyzed in <br />accordance with the provisions of Section 8-2006. <br /> <br /> 2. Unreinforced masonry walls which carry no <br />design loads other than their own weight may be considered <br />as veneer if they are adequately anchored to new supporting <br />elements. <br /> <br /> <br />