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14
City of Pleasanton
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CITY CLERK
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2007
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11/28/2007 2:27:21 PM
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11/28/2007 12:27:52 PM
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CITY CLERK
CITY CLERK - TYPE
STAFF REPORTS
DOCUMENT DATE
12/4/2007
DESTRUCT DATE
15 Y
DOCUMENT NO
14
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less than that prescribed in Table 2308.12.4 or Table 2304.9.1. Wall sheathing shall not <br />be attached to framing members by adhesives. <br />All braced wall panels shall extend to the roof sheathing and shall be attached to <br />parallel roof rafters or blocking above with framing clips (18 gauge minimum) spaced at <br />maximum 24 inches (6096 mm) on center with four 8d nails per leg (total eight 8d nails <br />per clip). Braced wall panels shall be laterally braced at each top corner and at <br />maximum 24 inch (6096 mm) intervals along the top plate of discontinuous vertical <br />framing. <br />20 08 039 Table 2308.12.4 amended -Wall Bracing in Seismic Design Categories D <br />and E. <br />Table 2308.12. Wall Bracing in Seismic Design Categories D and E of the California <br />Building Standards Code 2007 Edition, (24 C.C.R.), and including by reference the <br />International Building Code, 2006 Edition, Volumes 1 and 2 is amended to read as <br />follows: <br />TABLE 2308.12.4 <br />WALL BRACING IN SEISMIC DESIGN CATEGORIES D AND E <br />(Minimum Length of W. Conventional construction not permitted <br />CONDITION SHEATHING Sos < 0.50 0.50 < Sos < 0.75< Sos < Sos > 1.00 <br /> TYPE 0.75 1.00 <br />One Story S-w 5 feet 4 inches 8 feet 0 inches 9 feet 4 inches 12 feet 0 <br /> inches <br />Story Below Top S-W 10 feet 8 inches 13 feet 4 inches 17 feet 4 inches 21 feet 4 inches <br />Story (HCD 1) <br />Bottom story of S-W <br />three stories <br />(HCD -1) <br />For Sl: 1 inch = 25.4 mm, 1 foot = 304.8 mm. <br />a. Minimum length of panel bracing of one face of the wall for S-W sheathing shall be at least 4'-0" long, h/w ratio shall not exceed 2:1. For <br />S-W panel bracing of the same material on two faces of the wall, the minimum length is permitted to be one-half the tabulated value but the h/w <br />ratio shall not exceed 2:1 and design for uplift is required. <br />b. (HCD 1) Applies to detached one-and two- family dwellings only. <br />S-W =Wood structural panels shall be nailed with 15/32" thick 8d nails, at 6:6:12. <br />20.08.040 -Section 2308.12.4 -Braced wall line sheathing. <br />Section 2308.12.4 Braced wall line sheathing of the California Building Standards Code <br />2007 Edition (24 C.C.R.), and including by reference the International Building Code, <br />2006 Edition Volumes 1 and 2 is amended to read as follows: <br />2308.12.4 Braced wall line sheathing. Braced wall lines shall be braced by one of the <br />types of sheathing prescribed by Table 2308.12.4 as shown in Figure 2308.9.3. The <br />sum of lengths of braced wall panels at each braced wall line shall conform to Table <br />40 <br />
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