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CITY OF SANTA ANA <br />Planning and Building Agency <br />e n <br />LI & LI ENGINEERING SERVICES <br />REGISTERED CIVIL ENGINEERS <br />OWNER: <br />PROJECT: <br />ROOF DIAPHRAGM <br />Seismic V = 2.23 osf <br />Length (ft) <br />Load (psf) <br />Y-Dir <br />43.83 <br />98 <br />X-Dir <br />16.83 <br />38 <br />Governing Load (psf) X-Dir Length (1-1, ft) Y-Dir Length (1-2, ft) <br />Y-Dir 98 16.83 43.83 <br />X-Dir 55 16.83 43.83 <br />LONG w*L1/(2*L2) = 19 Ibs/ft <br />SHORT w*L2/(2*L1) = 72 Ibs/ft <br />USE 15/32" CDX PLYWOOD OR OSB w/ 8d @ 6" and 12" <br />PROVIDES = 240#/ft UNBLOCKED <br />P <br />D <br />J <br />GE I ,ed <br />,fE5R PE R M IT-I-SSCJ A N C E <br />B N0: ---? 4 -( o 3z <br />Master ID: <br />Date: <br />Wind Load <br />Wind Load (PLF) <br />Y-Dir 55 <br />X-Dir 55 <br />LONG Tension = Compression = w*L1^2/(L2*8) = 79 Ibs <br />SHORT Tension = Compression = w*L2A2/(L1*8) = 786 Ibs <br />USE ST6236 PROVIDES = 3845 Ibs <br />ST6236 PROVIDES = 3845 Ibs <br />