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11 pool POOL ENGINEERING INC.By R. Lopez <br />41+1+1+ engineering 1 Location: Santa Ana, CA 92706 Date. 1/10/2014 <br />- inc./ <br />- Job# 14-0070 <br />WIND UPLIFT ANCHOR DESIGN: <br />Simplified Procedure for Components and Cladding: (Sec. 30.5. ASCE 7-101 <br />V = 120 mph (basic wind speed) i <br />Exp. Cat.= C exposure category (Section 26.7, ASCE 7-10) ' <br />A = 1.21 Adjustment Factor for Building Height (Figure 30.5-1, ASCE 7-10) <br />Kn= 1 Topographic Factor (Section 26.8.2, ASCE 7-10) <br />Zone = 2 Roofe= 22.7 deg Area =381.4 sq.ft. <br />Poedo -38 p.s.f Net Wind Design Pressure, Eqn. 6-2, ASCE 7-10 <br />Pnet =Al<Atao =(1.21)(1)(38 p.s.f.) = 45.98 p.s.f. <br />(PneJaesign =46 p.s.f. Design Wind Uplift Pressure on Components and Cladding (16 p.s.f. min. per Sec 30.2,2, ASCE 7-10) <br />Connection to Existing Roof Framing: <br />FS= 1 (additional factor of saftey applied to withdrawal force) <br />16.1 sq.ft.(panel area tributary to each lag screw) =(1 <br />D=3.0 p.s.f.(panel dead load) <br />w=46.0 p.s.f (design wind pressure) 1 <br />Pug = FS*At,ib*.61)-0.6W) = (1)(16.1 sq.ft.)[(0.6)(3 p.s.f.Ho.6)(46p.s.f.)] <br />= 415.6lb. (withdrawal force applied to each lag screw) <br />DIA•g=5/16 in.(lag screw diameter)JUN <br />Dpen = 2.50 in.(lag screw penetration into existing framing member) <br />W=266 lb./in.(lag screw reference withdrawal design value - NDS Table 11.2A, G=0.50)'ar- <br />Co = 1.6 (load duration factor. 2012 NDS) 20, <br />4=0.8 <br />W' = Co.Ct*W = (1.6)(0.81(266 lb./in.)=340.48 lb./in.(adjusted withdrawal value) <br />P,now= Dpen*W' =(2.5 in.)(340.48 Ibjin) = 851.2 lb. <br />NT <br />Results:DEMAND = 415.6 lbs. < CAPACITY = 851.2 lbs. ==> OK <br />- <br />1/10/2014 11:29 AM <br />\\peanasv2\Pool\Projects Solar\2014\0070-14 Residential\14-0070 SOLAR PANEL CALCS.xlsx <br />Page 12 of 13 <br />©Pool Engineering, Inc. 2014