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CHAN RESIDENCE I June 7, 2022 I SDA Job# 9557 16 <br /> CHORD DESIGN: <br /> EV(Roof)_ <br /> Sub-diaphragm length= 44.0 ft Total-diaphragm length= 44.0 ft Design Load(critical case)= 53 PLF <br /> Sub-diaphragm width= 30.0 ft <br /> M 'EV(unit shear)x(diaphragm length) 54 PLF x 44 ft. <br /> T= - — = 8 = 8 =294 lbs *SEE DIAPHRAGM <br /> DESIGN FOR EV(unit <br /> shear) <br /> ` Top Plate Size: 2x6 Species/Grade:L `IF #2 j <br /> Area= 8.25 in^2 Ft = 525 psi <br /> Load duration(CD)=i 1.60 Tallowable = Area x CD x Ft = 6,930 lbs <br /> Since T aIlowable is greater than T applied, OK. <br /> SHEAR CAPACITY OF 10d COMMON NAIL = I 102 lbs 102 x Cd x p= 163 lbs 2018 NDS <br /> #OF NAILS PER 4FT.SPLICE= 294 lbs =2 NAILS USE:2x6 HF#2 TOP PLATE w/(8) 10d <br /> 163 lbs COMMON NAILS PER SPLICE <br /> EV(2nd Floor)= <br /> Sub-diaphragm length= 44.0 ft Total-diaphragm length= 44.0 ft Design Load(critical case)= 115 PLF <br /> Sub-diaphragm width= 30.0 ft <br /> T= M <br /> _ 'EV(uriit shear)x$diaphragm length) - 116 PLF8 x 44 ft. =634 lbs *SEE DIAPHRAGM <br /> DESIGN FOR EV(unit <br /> shear) <br /> Top Plate Size: 2x6 Species/Grade:; HF'#2 <br /> Area= 8.25 inA2 Ft = 525 psi <br /> Load duration(CD)=i 1.60 Tallowable = Area x CD x Ft = 6,930 lbs <br /> Since T allowable is greater than T applied, OK. <br /> SHEAR CAPACITY OF 10d COMMON NAIL = ( 102 lbs I, 102 x Cd x p= 163 lbs 2018 NDS <br /> #OF NAILS PER 4FT.SPLICE= 633 lbs =4 NAILS USE:2x6 HF#2 TOP PLATE w/(8) 10d i <br /> 163 lbs COMMON NAILS PER SPLICE <br /> 1 <br />