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ORDINANCE NO. NS-1673 <br />PAGE TEN <br /> <br />(3) <br /> <br />(4) <br /> <br />(5) <br /> <br />(6) <br /> <br />(7) <br /> <br />(8) <br /> <br />(9) <br /> <br />(10) <br /> <br />Shear bolts and shear dowels embedded <br />a minimum of 8 inches into unreinforced <br />masonry walls. Bolt centered in a 2 1/2 <br />inch diameter hole with dry-pack or <br />nonshrink grout a¥~nd circumference <br />of bolt or dowel.' ' <br /> <br />Tension bolts and tension dowels ex- <br />tending entirely through unreinforced <br />masonry walls secured with bearing <br />plates on far side of wall withtg~ <br />least 30 square inches of area.' ' <br /> <br />Bolts extending to the exterior face <br />of the wall with a 2 1/2 inch round plate <br />under the head installed as specified <br />for shear bolts. Spaced n~½9ser <br />than 12 inches on centers.- '- - <br /> <br />Bolts or dowels extending to the ex- <br />terior face of the wall with a 2 1/2 <br />inch round plate under the head and <br />drilled at an angle of 22 1/2 degrees <br />to the horizontal. In~9~d as speci- <br />fied for shear bolts. ' '' ' <br /> <br />Reinforced masonry infilled openings <br />in existing unreinforced masonry walls <br />with dowels or keys to match reinforc- <br />ing. <br /> <br />Masonry piers and walls reinforced per <br />U.B.C. Section 2418. <br /> <br />Concrete footings, walls and piers <br />reinforced as specified in Chapter <br />26. <br /> <br />Foundation load for structures ex- <br />hibiting no evidence of settlement. <br /> <br />Same as value given <br />for solid masonry in <br />U.B.C. Table 24-G. <br />Max. 750 lbs. <br /> <br />1,200 lbs. per bolt <br /> <br />600 lbs. per bolt <br /> <br />1,200 lbs. per <br />bolt or dowel <br /> <br />Same value as <br />for unreinforced <br />masonry walls <br /> <br />Same values as <br />specified in U.B.C. <br />Table 24-H <br /> <br />Same values as <br />specified in U.B.C. <br />Chapter 26 <br /> <br />Calculated existing <br />foundation pressure <br />due to max dead load <br />plus live load may be <br />increased 25% for dead <br />load, and may be in- <br />creased 50% for dead <br />load plus seismic <br />load <br /> <br /> <br />