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1905.1:10 ACI 318, Section 18.10.4. Modify ACI 318, Section 18.10.4, by adding Section <br />18.10.4.6 to read as follows: <br />18.10.4.6 Walls and portions of walls with Pu > 0.35Po shall not be considered to contribute to <br />the calculated shear strength of the structure for resisting earthquake -induced forces. Such walls <br />shall conform to the requirements of ACI 318 Section 18.14. <br />1905.1.11 ACI 318, Section 18.12.6. Modify ACI 318, Section 18.12.6.2, as follows: <br />18.12.6.2 Collector and boundary elements in topping slabs placed over precast floor and roof <br />elements shall not be less than 3 inches (76 mm) or 6 db in thickness, where db is the diameter of <br />the largest reinforcement in the topping slab. <br />Section 7-5-190: CONVENTIONAL LIGHT -FRAME CONSTRUCTION <br />Section 4.3.4 of SDPWS 2015 Edition is amended as follows: <br />Delete rows 5 & 6 of Table 4.3.4 <br />Section 2306.3 of the California Building Code, 2016 is amended as follows: <br />Section 2306.3 Wood —frame shear walls. Wood —frame shear walls shall be designed and <br />constructed in accordance with AWC SDPWS. Where panels are fastened to framing members <br />with staples, requirements and limitations of AWC SDPWS shall be met and the allowable shear <br />values set forth in Table 2306.3(1), 2306.3(2) or 2306.3(3) shall be permitted. The allowable <br />shear values in Tables 2306.3(1) and 2306.3(2) are permitted to be increased 40 percent for wind <br />design. Panels complying with ANSI/APA PRP -210 shall be permitted to use design values for <br />Plywood Siding in the AWC SDPWS. Shear walls sheathed with Portland cement plaster, <br />gypsum lath, gypsum sheathing or gypsum board shall not be used to resist seismic forces in <br />structures assigned to Seismic design Category D, E or F. <br />Section 2308.6.8.1 of the California Building Code, 2016 Edition is amended as follows: <br />Section 2308.6.8.1 Foundation Requirements. Braced wall lines shall be supported by <br />continuous foundations. <br />Exceptions: <br />1. One-story buildings with maximum plan dimension not exceeding 50 feet (15240 <br />mm), may have continuous foundations located at exterior braced wall lines only. <br />2. Two-story buildings with a maximum plan dimension not exceeding 50 feet <br />(15240 mm) may have braced wall lines supported on continuous foundations at <br />the exterior walls only, provided: <br />a. Cripple walls do not exceed 4 feet (1219 mm) in height. <br />ORDINANCE NO. 2016-014 36 <br />