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ORDINANCE NS-2152 <br />PAGE 1~ <br /> <br />(2) <br /> <br />(a) <br /> <br />ends of plywood sheets <br />bearing on joists or rafters <br />and edges of plywood located <br />on center of individual <br />sheathing boards. <br /> <br />Shear walls: <br /> <br />Plywood sheathing <br />applied directly over <br />existing wood studs. No <br />value shall be given to <br />plywood applied over <br />existing plaster or wood <br />sheathing. <br /> <br />(b) Dry wall or plaster <br /> applied directly over <br /> existing wood studs. <br />(c) Dry wall or plaster <br /> applied to plywood <br /> sheathing over existing <br /> wood studs. <br /> <br />(3) <br /> <br />(4) <br /> <br />(5) <br /> <br />(6) <br /> <br />Shear bolts and shear dowels <br />embedded a minimum <br />of 8 inches into unreinforced <br />masonry walls. <br />Bolt centered in a 2 1/2 inch <br />diameter hole with drypack <br />or nonshrink grout <br />around circumference of <br />bolt or dowel,c) <br /> <br />Tension bolts and tension <br />dowels extending entirely <br />through unreinforced masonry <br />walls secured with <br />bearing plates on far side of <br />wall with at le~t 30 square <br />inches of area. <br /> <br />Bolts extending to the exterior <br />face of the wall with a 2 1/2inch <br />round plate under the head in- <br />stalled as specified for shear <br />bolts. Spaced not clo~(~han <br />12 inches on centers. <br /> <br />Bolts or dowels extending to <br />the exterior face of the wall <br />with a 2 1/2 inch round plate <br /> <br />18 <br /> <br />Same as specified in <br />U.B.C. Table 25-K-1 for <br />shear walls <br /> <br />Same as specified in <br />U.B.C. Table 47-I <br /> <br />33 1/3 per cent of the <br />values specified in U.B.C. <br />Table 47-I <br /> <br />Same as value given for <br />solid masonry in U.B.C. <br />Table 24-M. Max. <br />750 lbs. <br /> <br />1,200 lbs. per bolt <br /> <br />600 lbs. per bolt <br /> <br />1,200 lbs. per bolt or <br />dowel <br /> <br /> <br />