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Able Energy <br /> Ref ASCE 7-10,IBC 2012 Robb Residence <br /> Wind Loads (MWFRS) Directional Procedure for <br /> Enclosed Per Chapter 26 and 27 ASCE7-10 <br /> Basic Wind Speed V= 115 mph <br /> SVudureType Building,Enclosed <br /> Wind directional factor(only to be used with load combinations per sec 2.3&2.4)pg 80 Kd= 0.85 <br /> Importance factor I ref table 1.5-2 1= 1.00 <br /> Exposure Catagory B II <br /> Building height in feet h= �8.00 ft <br /> Velocity Pressure CoeffiaeM Kz,(per sec 26.7.3 and Eq C27.31) Kz= 0.61 <br /> Velocity Pressure Coefficient Kh,per Sec 26.7.3 Kh= O.B1 <br /> 1.Is site on a hill rid e or esca ment isolated and unobstructured u 'nd b other similar to hic features 100H or 2 mi min value? NO <br /> 2.Ooes the hill rid e or esca ment rotudes above the hei ht of u 'nd tertain features within 2 mi radius b a fector of hvo or more? NO <br /> 3.Is the strudu2 tocated in the u r one-helf M a hill or near the crest of a esca ent? NO <br /> 4.is H�lLh x 0.2? Hlf/Lh=24.00 YES <br /> 5.Is Ha t 15?For Exposure C and D and 60 ft tor exposure B? NO <br /> Sita does not meet condition in Sec 26.8.1,Kzt=1.0,There is no ndge or escarpment effect <br /> Type 3-D Axis m.Hill <br /> Ridge/Escarp Height tin�y.,F�cuRE m.ai rsce�.�o� 24 ft <br /> x(upwind) 0.5 fl <br /> x(Downwind) 0.1 ft <br /> L�et Htl/2 1 ft <br /> K1 from figure 26.&1 K1= 0.53 <br /> K2 trom figura 28.&1 K2= 0.33 <br /> K3 trom fipure 26.8-1 - K3= 0.00 <br /> Kzt per Equation C27.31 Kzt = 1,00 <br /> Kzt per sect 26.8.1 � = 1.pp <br /> EnGosed <br /> Intemal Pressure Coeffident TowarA the surface(+) Gcpl= 0.18 <br /> Intemal Pressure Coefficient away the surface(-) Gcpi= 0.18 <br /> Length L in feet,leewerd L= 30.00 ft <br /> Witlth B in Teet,wintlwartl 8= 30.00 ft <br /> Height H in feet H= 18.00 ft <br /> RaGo LB UB= t00 <br /> WaII Cp Windward Cpw= o.e <br /> Wall Cp Leeward CpL= -0.5 <br /> Wall Cp Sidewall, Cps= -0.7 <br /> Ratlo H/L H/L= 0.60 <br /> Cp Roof Windward Cpr- -1.3 <br /> Cp Roof wndward Cpr- -0.18 <br /> Cp Roof Leeward Cpr- -0.7 <br /> WeII Windward qzGCp 11.85 <br /> Well Leeward qhGCp -7.40 <br /> Sides qhGCp -10.37 <br /> Windwartl Roof qhGCpr -19.25 <br /> Windward Roof qhGCpr -2.67 <br /> Windwerd Roof qhGCpr -2.67 <br /> Leewartl Roof qhGCpf -10.37 <br /> Computa Cf <br /> Ratio H/D,D least horizontal dimension H/D= 0.6 <br /> Cf Cf= 1.3 <br /> W W coeffident(r ratio)= wyy= O.gp <br /> 1.3 <br /> Length L in feet,leeward L= 30.00 ft <br /> Widih B in feat,windward 8= 30.00 ft <br /> Height H in feet H= 18.00 ft <br /> Ratio LB ug= �.pp <br /> Wall Cp Wintlwerd Cpw= 0.8 <br /> Wall Cp Leeward CpL= -0.5 <br /> Wall Cp Sidewall Cps= -0.7 <br /> Ratio H/L H/L= 0.60 <br /> Cp Roof windwerd CP�= -1.3 <br /> Cp Roof windward CprW= -0.18 <br /> Cp Roof Leeward CprL= -0.7 <br /> Windward Well qzGCp 11.85 <br /> Leewartl Well qhGCp -7.40 <br /> Sidas qhGCp -10.37 <br /> Windwartl Roof qhGCpr -19.25 <br /> Windwerd Roof qhGCpr -2,87 <br /> LeeweM ROof qhGCpr -10.37 <br /> qz=.00258KZKztKdV=I qz= 17.42 Ib/sqft <br /> qh is the value of qz at the mean height qh= 17.42 Ib/sqft <br /> G per section 28.9 for rigid structures G= 0.85 <br /> Zbar- 10.800 <br /> Lzbar 399.901 <br /> Iber- 0.241 <br /> F per equation 29.52 F= See table 1 <br /> Sheet 12 <br />