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The last paragraph of Section 1905.1.2 of the 2016 Edition of the California Building Code is <br />amended to read as follows: <br />All special moment frames and special structural walls shall also satisfy 18.2.4 through 18.2.8. <br />Concrete tilt -up wall panels classified as intermediate precast structural wall system shall satisfy <br />18. 10.1 in addition to 18.5.2.1 and 18.5.2.2 for structures assigned to Seismic Design Category <br />D, E or F. <br />1905.1.7 ACI 318, section 14.1.4 Delete ACI 318, section 14.1.4 and replace with the following: <br />14.1.4 — Plain concrete in structures assigned to Seismic Design Category C, D, E or F. <br />14.1.4.1 — Structures assigned to Seismic Design Category C, D, E or F shall not have elements <br />of structural plain concrete, except as follows: <br />(a) Isolated footing of plain concrete supporting pedestals or columns are permitted, <br />provided the projection of the footing beyond the face of the supported member does not <br />exceed the footing thickness. <br />Exception: In detached one—and two—family dwellings three stories or less in <br />height, the projection of the footing beyond the face of the supported member is permitted to <br />exceed the following thickness. <br />(b) Plain concrete footing supporting walls are permitted, provided the footings have at <br />least two continuous longitudinal reinforcing bars. Bars shall not be smaller than No.4 <br />and shall have a total area of not less than 0.002 times the gross cross-sectional area of <br />the footing. A minimum of one bar shall be provided at the top and bottom of the <br />footing. Continuity of reinforcement shall be provided at corners and intersections. <br />Sections 1905.1.9 through 1905.1.11 are added as follows: <br />1905.1.9 ACI 318, Section 18.7.5. Modify ACI 318, Section 18.7.5, by adding Section 18.7.5.8 <br />and 18.7.5.9 as follows: <br />18.7.5.8 Where the calculated point of contra -flexure is not within the middle half of the member <br />clear height, provide transverse reinforcement as specified in ACI 318 Sections 18.7.5.1, Items <br />(a) through (c), over the full height of the member. <br />18.7.5.9 At any section where the design strength, (PPn, of the column is less than the sum of the <br />shears Ve computed in accordance with ACI 318 Sections 18.6.5.1 and 18.7.6.1.1 for all the <br />beams framing into the column above the level under consideration, transverse reinforcement as <br />specified in ACI 318 Sections 18.7.5.1 through 18.7.5.3 shall be provided. For beams framing <br />into opposite sides of the column, the moment components are permitted to be assumed to be of <br />opposite sign. For the determination of the design strength, (PPn, of the column, these moments <br />are permitted to be assumed to result from the deformation of the frame in any one principal axis. <br />ORDINANCE NO. 2016-014 35 <br />