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le <br /> PROJECT NAME: LARSEN RESIDENCE <br /> JOB: H10-1088 <br /> ASCE 7-05 METHOD 2 Given data <br /> W speed 85.0,Exposure B <br /> Given Roof angle=22.62(5.0:12 Pitch) <br /> Bldg width=29.0 ft <br /> Bldg length=32.0 ft <br /> Total height=23.04 ft <br /> Height to average roof height=17.00 ft+6.04/3=19.01 ft <br /> Bldg height=17.00 ft <br /> Roof height=6.04 ft <br /> Edge Zone=2a <br /> Compute edge strip width <br /> Lesser of: 10%of the least horizontal dimension <br /> 0.10(Width)=0.10(29.00 ft)=2.9 ft CONTROLS <br /> 0.10(Length)=0.10(32.00 ft)=3.2 ft <br /> 40%of the eave height=0.40(17.00 ft)=6.80 ft <br /> But not less 4%of the least horizontal dimension=0.04(32.00 ft)=1.16 ft OK <br /> But not less 3 ft. <br /> Therefore a=3.0 ft and the End Zone=2a=2(3.0)=6.0 ft <br /> Velocity pressures,q2=0.00256KZKZtKd V24, Eq 6-15 <br /> Topography factor,K2,=1.25 <br /> Directionality factor,Kd=0.85 <br /> Wind pressure,p =qh G Cp-q;(G Ci,) <br /> q2=0.00256(1.25)(0.85)(85.00)2(1.00)K2=19.65K2 <br /> Ott -.fid' .4,.04‘ <br /> 4 Load Case 1 Load Case 2 <br /> 4 ' Y0 .e t Ksfl K.. <br /> ,1 it1�(p97(psfl <br /> 0 i , E iaphr� 9.0 0.70 13.76 0.57 11.20 <br /> ` `_ _4. 15.0 0.70 13.76 0.57 11.20 <br /> ,:sittit4g.n 4,• 17.0 0.70 13.76 0.62 12.18 <br /> ., .., ° . ;' 20.0 0.70 13.76 0.66 12.97 <br /> -eight 23.0 0.70 13.76 0.66 12.97 <br /> Gust effect factor G=0.85,assume Rigid Structure(ASCE 7-05 Section 6.5.8.1) <br /> Internal pressure coefficient(G Cr,)=±0.18(ASCE 7-05 Section 6.5.8.1) <br /> External wall CQ from Figure 6-6 <br /> CUSTOM DESIGN&ENGINEERING,INC. <br /> October 2,2008 ,'Page 2 <br />