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All special moment frames and special structural walls shall also satisfy 18.2.4 through <br />18.2.8. Concrete tilt-up wall panels classified as intermediate precast structural wall <br />system shall satisfy 18.10.1 in addition to 18.5.2.1 and 18.5.2.2 for structures assigned to <br />Seismic Design Category D, E or F. <br /> 1905.1.7 ACI 318, Section 14.1.4 of the 2022 California Building Code is amended in its <br />entirety to read as follows: <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 <br />elements of structural plain concrete, except as follows: <br />(a) Isolated footing of plain concrete supporting pedestals or columns are permitted, provided <br />the projection of the footing beyond the face of the supported member does not exceed the <br />footing thickness. <br /> Exception: In detached one- and two-family dwellings three stories or less in height, the <br />projection of the footing beyond the face of the supported member is permitted to exceed the <br />following thickness. <br />(b) Plain concrete footing supporting walls are permitted, provided the footings have at least <br />two continuous longitudinal reinforcing bars. Bars shall not be smaller than No.4 and shall have <br />a total area of not less than 0.002 times the gross cross-sectional area of the footing. A <br />minimum of one bar shall be provided at the top and bottom of the footing. Continuity of <br />reinforcement shall be provided at corners and intersections. <br />Sections 1905.1.9 through 1905.1.11 are added to Chapter 19 of the 2022 California Building <br />Code as follows: <br /> 1905.1.9 ACI 318, Section 18.7.5. Modify ACI 318, Section 18.7.5, by adding <br />Section 18.7.5.8 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 <br />member clear height, provide transverse reinforcement as specified in ACI 318 <br />Sections 18.7.5.1, Items (a) through (c), over the full height of the member. <br />18.7.5.9 At any section where the design strength, φPn, of the column is less than the sum <br />of the shears Ve computed in accordance with ACI 318 Sections 18.6.5.1 and 18.7.6.1.1 for <br />all the beams framing into the column above the level under consideration, transverse <br />reinforcement as specified in ACI 318 Sections 18.7.5.1 through 18.7.5.3 shall be provided. <br />For beams framing into opposite sides of the column, the moment components are <br />permitted to be assumed to be of opposite sign. For the determination of the design